The command instructions for configuring Cisco devices include command line prompt configuration terminal syntaxes

Here are some command syntaxes for configuring security on Cisco devices for CCNA:


1. Enable privilege mode:
   ```
   enable
   ```

2. Enter global configuration mode:
   ```
   configure terminal
   ```

3. Assign a hostname to the device:
   ```
   hostname [name]
   ```

4. Configure console line for secure access:
   ```
   line console 0
   password [password]
   login
   ```

5. Configure vty lines for remote access:
   ```
   line vty 0 15
   password [password]
   login
   ```

6. Encrypt plain-text passwords:
   ```
   service password-encryption
   ```

7. Configure an enable secret password:
   ```
   enable secret [password]
   ```

8. Enable SSH for secure remote access:
   ```
   crypto key generate rsa
   ip ssh version 2
   ```

9. Configure an access control list (ACL):
   ```
   access-list [number] [permit|deny] [source] [destination] [protocol]
   ```

10. Apply an ACL to an interface:
    ```
    interface [interface_name]
    ip access-group [number] [in|out]
    ```
    

These are just a few examples of command syntaxes for configuring security on Cisco devices. Remember to adjust the values and parameters according to your specific network requirements.

Here are some common command line prompt configuration terminal syntaxes used in Cisco's CCNA (Cisco Certified Network Associate) certification:


1. Enter privileged EXEC mode:
```
Router> enable
```

2. Enter global configuration mode:
```
Router# configure terminal
```

3. Assign a hostname to the router:
```
Router(config)# hostname <hostname>
```

4. Configure an interface:
```
Router(config)# interface <interface>
```

5. Assign an IP address to an interface:
```
Router(config-if)# ip address <ip-address> <subnet-mask>
```

6. Enable an interface:
```
Router(config-if)# no shutdown
```

7. Configure a default gateway:
```
Router(config)# ip default-gateway <gateway-ip-address>
```

8. Configure a static route:
```
Router(config)# ip route <destination-network> <subnet-mask> <next-hop>
```

9. Set a console password:
```
Router(config)# line console 0
Router(config-line)# password <password>
Router(config-line)# login
```

10. Set an enable secret password:
```
Router(config)# enable secret <password>
```

11. Configure SSH access:
```
Router(config)# crypto key generate rsa
Router(config)# username <username> privilege 15 secret <password>
Router(config)# line vty 0 4
Router(config-line)# transport input ssh
Router(config-line)# login local
```

12. Save configuration changes:
```
Router# copy running-config startup-config
```

These commands provide a basic overview of configuration options in Cisco IOS. However, please note that there are numerous additional configuration commands and variations depending on the specific requirements of your network. It is recommended to consult the Cisco documentation or study materials specific to the CCNA certification for a comprehensive understanding.

Here are some more command line prompt configuration terminal syntaxes:


13. Configure a VLAN:
```
Switch(config)# vlan <vlan-id>
Switch(config-vlan)# name <vlan-name>
```


14. Assign an access port to a VLAN:
```
Switch(config)# interface <interface>
Switch(config-if)# switchport mode access
Switch(config-if)# switchport access vlan <vlan-id>
```

15. Configure a trunk port:
```
Switch(config)# interface <interface>
Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport trunk allowed vlan <vlan-list>
```

16. Configure a port as an access port with a specific VLAN:
```
Switch(config)# interface <interface>
Switch(config-if)# switchport mode access
Switch(config-if)# switchport access vlan <vlan-id>
```

17. Configure a port as a trunk port with a native VLAN:
```
Switch(config)# interface <interface>
Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport trunk native vlan <vlan-id>
```

18. Configure a VLAN interface for inter-VLAN routing:
```
Switch(config)# interface vlan <vlan-id>
Switch(config-if)# ip address <ip-address> <subnet-mask>
```

19. Configure a static route:
```
Router(config)# ip route <destination-network> <subnet-mask> <next-hop>
```

20. Configure an access control list (ACL):
```
Router(config)# access-list <acl-number> <permit|deny> <source> <destination> <protocol>
```

21. Apply an ACL to an interface:
```
Router(config)# interface <interface>
Router(config-if)# ip access-group <acl-number> <in|out>
```

22. Configure NAT (Network Address Translation):
```
Router(config)# ip nat inside source static <inside-local-address> <outside-global-address>
```

23. Configure DHCP (Dynamic Host Configuration Protocol):
```
Router(config)# ip dhcp pool <pool-name>
Router(dhcp-config)# network <network-address> <subnet-mask>
Router(dhcp-config)# default-router <default-gateway-address>
Router(dhcp-config)# dns-server <dns-server-address>
```

These additional commands provide further configuration options for VLANs, routing, access control, network services, and more. Remember that this list is not exhaustive, and there are many more commands and configurations available in Cisco IOS. It's important to consult official Cisco documentation and study materials for a complete understanding of CCNA-level command line prompt configuration.

Here are a few more command line prompt configuration terminal syntaxes:


24. Configure a static MAC address entry:
```
Switch(config)# mac address-table static <mac-address> <interface>
```

25. Configure port security:
```
Switch(config)# interface <interface>
Switch(config-if)# switchport port-security
Switch(config-if)# switchport port-security violation <mode>
Switch(config-if)# switchport port-security maximum <max-count>
```

26. Configure VLAN trunking protocol (VTP):
```
Switch(config)# vtp mode <server|client|transparent>
Switch(config)# vtp domain <domain-name>
```

27. Configure Spanning Tree Protocol (STP):
```
Switch(config)# spanning-tree mode <stp-mode>
Switch(config)# spanning-tree vlan <vlan-id> root <primary|secondary>
```

28. Configure EtherChannel (link aggregation):
```
Switch(config)# interface range <interface-range>
Switch(config-if-range)# channel-group <group-number> mode <on|active|passive>
```

29. Configure Quality of Service (QoS):
```
Router(config)# class-map <class-name>
Router(config-cmap)# match <match-criteria>
Router(config)# policy-map <policy-name>
Router(config-pmap)# class <class-name>
Router(config-pmap-c)# <action>
Router(config)# interface <interface>
Router(config-if)# service-policy input <policy-name>
```

30. Configure Virtual Private Network (VPN):
```
Router(config)# crypto isakmp policy <policy-number>
Router(config-isakmp)# encryption <encryption-algorithm>
Router(config-isakmp)# hash <hash-algorithm>
Router(config)# crypto isakmp key <pre-shared-key> address <peer-address>
Router(config)# crypto ipsec transform-set <transform-set-name> <encryption-algorithm> <hash-algorithm>
Router(config)# crypto map <map-name> <sequence-number> ipsec-isakmp
Router(config-crypto-map)# set peer <peer-address>
Router(config-crypto-map)# set transform-set <transform-set-name>
Router(config-crypto-map)# match address <access-list>
Router(config)# interface <interface>
Router(config-if)# crypto map <map-name>
```

These additional commands cover topics such as MAC address management, VLAN trunking, network protocols, network security, and advanced networking features. However, please note that these are just a few examples, and there are numerous other configuration options available in Cisco IOS for CCNA-level knowledge. It's always recommended to refer to official Cisco documentation and study materials for a comprehensive understanding of the commands and their usage.

Here are a few more command line prompt configuration terminal syntaxes:


31. Configure Network Address Translation (NAT) overload (PAT):
```
Router(config)# interface <interface>
Router(config-if)# ip nat inside
Router(config-if)# exit
Router(config)# interface <interface>
Router(config-if)# ip nat outside
Router(config-if)# exit
Router(config)# ip nat inside source list <access-list> interface <interface> overload
```

32. Configure dynamic routing using Routing Information Protocol (RIP):
```
Router(config)# router rip
Router(config-router)# network <network-address>
```

33. Configure dynamic routing using Open Shortest Path First (OSPF):
```
Router(config)# router ospf <process-id>
Router(config-router)# network <network-address> <wildcard-mask> area <area-id>
```

34. Configure dynamic routing using Enhanced Interior Gateway Routing Protocol (EIGRP):
```
Router(config)# router eigrp <autonomous-system-number>
Router(config-router)# network <network-address>
```

35. Configure password encryption:
```
Router(config)# service password-encryption
```

36. Configure SNMP (Simple Network Management Protocol):
```
Router(config)# snmp-server community <community-string> RO
```

37. Configure banner messages:
```
Router(config)# banner motd <delimiter><message><delimiter>
```

Note: Replace `<delimiter>` with any character or string of your choice. It should be placed at the beginning and end of the message.


38. Configure time synchronization with Network Time Protocol (NTP):
```
Router(config)# ntp server <ntp-server-address>
```

39. Configure port forwarding using static NAT:
```
Router(config)# ip nat inside source static tcp <inside-local-address> <inside-local-port> <outside-global-address> <outside-global-port>
```

40. Configure port forwarding using port address translation (PAT):
```
Router(config)# ip nat inside source list <access-list> interface <interface> overload
Router(config)# access-list <access-list-number> permit tcp <inside-local-network> <wildcard-mask> any eq <inside-local-port>
```

These additional commands cover various topics such as NAT, dynamic routing protocols, password encryption, network services, and security. It's important to note that this list is not exhaustive, and Cisco IOS provides many more configuration options and features. Always consult official Cisco documentation and study materials for a comprehensive understanding of the commands and their usage in the CCNA certification context.

Here are a few more command line prompt configuration terminal syntaxes:


41. Configure Virtual LAN Trunking Protocol (VTP) pruning:
```
Switch(config)# interface <interface>
Switch(config-if)# switchport trunk pruning vlan <vlan-list>
```

42. Configure a default route:
```
Router(config)# ip route 0.0.0.0 0.0.0.0 <next-hop>
```

43. Configure port security with sticky MAC addresses:
```
Switch(config)# interface <interface>
Switch(config-if)# switchport port-security
Switch(config-if)# switchport port-security sticky
```

44. Configure DHCP relay:
```
Router(config)# interface <interface>
Router(config-if)# ip helper-address <dhcp-server-address>
```

45. Configure HSRP (Hot Standby Router Protocol):
```
Router(config)# interface <interface>
Router(config-if)# standby <group-number> ip <virtual-ip-address>
Router(config-if)# standby <group-number> priority <priority>
```

46. Configure access control lists (ACL) for traffic filtering:
```
Router(config)# access-list <acl-number> <deny|permit> <source> <destination> <protocol>
Router(config)# interface <interface>
Router(config-if)# ip access-group <acl-number> <in|out>
```

47. Configure PPP (Point-to-Point Protocol):
```
Router(config)# interface <interface>
Router(config-if)# encapsulation ppp
Router(config-if)# ppp authentication <authentication-type>
```

48. Configure PPPoE (Point-to-Point Protocol over Ethernet):
```
Router(config)# interface <interface>
Router(config-if)# encapsulation pppoe
Router(config-if)# pppoe-client dial-pool-number <dialer-pool-number>
```

49. Configure VLAN access maps (VACL):
```
Switch(config)# vlan access-map <acl-name> <sequence-number>
Switch(config-access-map)# match <match-criteria>
Switch(config-access-map)# action <permit|deny>
Switch(config-access-map)# exit
Switch(config)# vlan filter <acl-name> vlan-list <vlan-list>
```

50. Configure VLAN-based routing (SVI):
```
Switch(config)# interface vlan <vlan-id>
Switch(config-if)# ip address <ip-address> <subnet-mask>
```

These additional commands cover topics such as VLAN trunking, routing, security, protocol configurations, and more. It's important to note that this list is not exhaustive, and Cisco IOS provides many more configuration options and features. Always consult official Cisco documentation and study materials for a comprehensive understanding of the commands and their usage in the CCNA certification context.

Here are a few more command line prompt configuration terminal syntaxes:


51. Configure IPv6 address on an interface:
```
Router(config)# interface <interface>
Router(config-if)# ipv6 address <ipv6-address>/<prefix-length>
```

52. Configure IPv6 static route:
```
Router(config)# ipv6 route <ipv6-prefix> <prefix-length> <next-hop>
```

53. Configure IPv6 default route:
```
Router(config)# ipv6 route ::/0 <next-hop>
```

54. Configure IPv6 access list:
```
Router(config)# ipv6 access-list <acl-name>
Router(config-ipv6-acl)# permit|deny <source-ipv6> <destination-ipv6> <protocol>
```

55. Configure IPv6 routing protocol (OSPFv3):
```
Router(config)# ipv6 router ospf <process-id>
Router(config-router)# router-id <router-id>
Router(config-router)# network <ipv6-prefix> <prefix-length> area <area-id>
```

56. Configure IPv6 address on VLAN interface:
```
Switch(config)# interface vlan <vlan-id>
Switch(config-if)# ipv6 address <ipv6-address>/<prefix-length>
```

57. Configure Port Security with MAC address sticky:
```
Switch(config)# interface <interface>
Switch(config-if)# switchport port-security
Switch(config-if)# switchport port-security mac-address sticky
```

58. Configure EtherChannel load balancing:
```
Switch(config)# port-channel load-balance <method>
```

59. Configure DHCPv4 on a router:
```
Router(config)# ip dhcp excluded-address <start-ip> <end-ip>
Router(config)# ip dhcp pool <pool-name>
Router(dhcp-config)# network <network-address> <subnet-mask>
Router(dhcp-config)# default-router <default-gateway-address>
Router(dhcp-config)# dns-server <dns-server-address>
```

60. Configure DHCPv6 on a router:
```
Router(config)# ipv6 dhcp pool <pool-name>
Router(config-dhcpv6)# address prefix <prefix>/<prefix-length>
Router(config-dhcpv6)# dns-server <dns-server-address>
```

These commands cover various topics related to IPv6, DHCP, security, load balancing, and routing protocols. However, please note that this list is not exhaustive, and there are many more configuration options available in Cisco IOS for CCNA-level knowledge. Always refer to official Cisco documentation and study materials for a comprehensive understanding of the commands and their usage.

Here are a few more command line prompt configuration terminal syntaxes:


61. Configure OSPF authentication:
```
Router(config)# router ospf <process-id>
Router(config-router)# area <area-id> authentication
Router(config-router)# area <area-id> authentication message-digest
Router(config-router)# area <area-id> authentication-key <key>
```

62. Configure EIGRP authentication:
```
Router(config)# interface <interface>
Router(config-if)# ip authentication mode eigrp <process-id> md5
Router(config-if)# ip authentication key-chain eigrp <process-id> <key-chain-name>
```

63. Configure BGP (Border Gateway Protocol):
```
Router(config)# router bgp <AS-number>
Router(config-router)# neighbor <neighbor-ip-address> remote-as <AS-number>
Router(config-router)# network <network-address> mask <network-mask>
```

64. Configure QoS (Quality of Service) with traffic shaping:
```
Router(config)# policy-map <policy-map-name>
Router(config-pmap)# class <class-name>
Router(config-pmap-c)# shape average <rate> <burst-size>
Router(config)# interface <interface>
Router(config-if)# service-policy output <policy-map-name>
```

65. Configure NAT (Network Address Translation) with overload and access control list:
```
Router(config)# access-list <access-list-number> permit <source-network> <source-wildcard> <destination-network> <destination-wildcard>
Router(config)# ip nat inside source list <access-list-number> interface <interface> overload
```

66. Configure HSRP (Hot Standby Router Protocol) authentication:
```
Router(config)# interface <interface>
Router(config-if)# standby <group-number> authentication <authentication-type> <password>
```

67. Configure VRRP (Virtual Router Redundancy Protocol):
```
Router(config)# interface <interface>
Router(config-if)# vrrp <group-number> ip <virtual-ip-address>
Router(config-if)# vrrp <group-number> priority <priority>
```

68. Configure IPv6 static default route:
```
Router(config)# ipv6 route ::/0 <next-hop> <interface>
```

69. Configure DHCP relay agent:
```
Router(config)# interface <interface>
Router(config-if)# ip helper-address <dhcp-server-ip-address>
```

70. Configure VLAN ACL (Access Control List):
```
Switch(config)# vlan access-map <acl-name> <sequence-number>
Switch(config-access-map)# match <match-criteria>
Switch(config-access-map)# action <permit|deny>
Switch(config-access-map)# exit
Switch(config)# vlan filter <acl-name> vlan-list <vlan-list>
```

These commands cover additional topics related to authentication, routing protocols, QoS, NAT, redundancy protocols, and more. It's important to note that this list is not exhaustive, and there are many more configuration options available in Cisco IOS for CCNA-level knowledge. Always refer to official Cisco documentation and study materials for a comprehensive understanding of the commands and their usage.

Here are a few more command line prompt configuration terminal syntaxes:


71. Configure VTP version:
```
Switch(config)# vtp version <version-number>
```

72. Configure VLAN-based access control (VACL):
```
Switch(config)# vlan access-map <acl-name> <sequence-number>
Switch(config-access-map)# match <match-criteria>
Switch(config-access-map)# action <permit|deny>
Switch(config-access-map)# exit
Switch(config)# vlan filter <acl-name> vlan-list <vlan-list>
```

73. Configure DHCP snooping:
```
Switch(config)# ip dhcp snooping
Switch(config)# ip dhcp snooping vlan <vlan-list>
Switch(config)# interface <interface>
Switch(config-if)# ip dhcp snooping trust
```

74. Configure port security with violation modes:
```
Switch(config)# interface <interface>
Switch(config-if)# switchport port-security
Switch(config-if)# switchport port-security violation <mode>
```

75. Configure IPv6 routing protocol (RIPng):
```
Router(config)# router ripng
Router(config-router)# network <ipv6-prefix>
```

76. Configure IPv6 router advertisement (RA):
```
Router(config)# interface <interface>
Router(config-if)# ipv6 address <ipv6-address>/<prefix-length>
Router(config-if)# ipv6 nd prefix <ipv6-prefix> <valid-lifetime> <preferred-lifetime>
```

77. Configure STP (Spanning Tree Protocol) root guard:
```
Switch(config)# interface <interface>
Switch(config-if)# spanning-tree guard root
```

78. Configure GRE (Generic Routing Encapsulation) tunnel:
```
Router(config)# interface tunnel <tunnel-number>
Router(config-if)# ip address <source-ip-address> <subnet-mask>
Router(config-if)# tunnel source <source-interface>
Router(config-if)# tunnel destination <destination-ip-address>
```

79. Configure SNMP trap receiver:
```
Router(config)# snmp-server host <ip-address> <community-string>
```

80. Configure router-on-a-stick (inter-VLAN routing):
```
Router(config)# interface <interface>
Router(config-if)# encapsulation dot1q <vlan-id>
Router(config-if)# ip address <ip-address> <subnet-mask>
```

These additional commands cover topics such as VTP, VLAN access control, DHCP snooping, IPv6 protocols, security features, tunneling, and more. However, please note that this list is not exhaustive, and there are many more configuration options available in Cisco IOS for CCNA-level knowledge. Always refer to official Cisco documentation and study materials for a comprehensive understanding of the commands and their usage.

Here are a few more command line prompt configuration terminal syntaxes:


81. Configure HSRP (Hot Standby Router Protocol) tracking:
```
Router(config)# interface <interface>
Router(config-if)# standby <group-number> track <interface> <priority-decrement>
```

82. Configure BGP (Border Gateway Protocol) authentication:
```
Router(config)# router bgp <AS-number>
Router(config-router)# neighbor <neighbor-ip-address> password <password>
```

83. Configure EIGRP (Enhanced Interior Gateway Routing Protocol) summarization:
```
Router(config)# interface <interface>
Router(config-if)# ip summary-address eigrp <AS-number> <summary-address> <summary-mask>
```

84. Configure HSRP (Hot Standby Router Protocol) preempt delay:
```
Router(config)# interface <interface>
Router(config-if)# standby <group-number> preempt delay <seconds>
```

85. Configure PPP (Point-to-Point Protocol) authentication with PAP (Password Authentication Protocol):
```
Router(config)# interface <interface>
Router(config-if)# ppp authentication pap
```

86. Configure BGP (Border Gateway Protocol) route filtering using prefix-list:
```
Router(config)# ip prefix-list <prefix-list-name> seq <sequence-number> permit <prefix>
Router(config)# router bgp <AS-number>
Router(config-router)# neighbor <neighbor-ip-address> prefix-list <prefix-list-name> in|out
```

87. Configure VTP (VLAN Trunking Protocol) password:
```
Switch(config)# vtp password <password>
```

88. Configure route redistribution between OSPF and EIGRP:
```
Router(config)# router ospf <process-id>
Router(config-router)# redistribute eigrp <AS-number> subnets
Router(config)# router eigrp <AS-number>
Router(config-router)# redistribute ospf <process-id> metric <metric-value> <subnets>
```

89. Configure DHCP (Dynamic Host Configuration Protocol) excluded addresses:
```
Router(config)# ip dhcp excluded-address <start-ip-address> <end-ip-address>
```

90. Configure BGP (Border Gateway Protocol) route filtering using route-map:
```
Router(config)# route-map <route-map-name> permit <sequence-number>
Router(config-route-map)# match ip address <access-list-number>
Router(config-route-map)# set weight <weight-value>
Router(config)# router bgp <AS-number>
Router(config-router)# neighbor <neighbor-ip-address> route-map <route-map-name> in|out
```

These additional commands cover various topics such as HSRP, BGP, EIGRP, PPP authentication, route redistribution, VTP, route filtering, DHCP, and more. However, please note that this list is not exhaustive, and there are many more configuration options available in Cisco IOS for CCNA-level knowledge. Always refer to official Cisco documentation and study materials for a comprehensive understanding of the commands and their usage.

Here are a few more command line prompt configuration terminal syntaxes:


91. Configure ACL (Access Control List) for VTY (Virtual Terminal) lines:
```
Router(config)# access-list <acl-number> permit <source> <destination>
Router(config)# line vty 0 <last-vty-line-number>
Router(config-line)# access-class <acl-number> in
```

92. Configure QoS (Quality of Service) using priority queuing:
```
Router(config)# interface <interface>
Router(config-if)# priority-queue out
```

93. Configure port security with MAC address maximum threshold:
```
Switch(config)# interface <interface>
Switch(config-if)# switchport port-security maximum <max-count>
```

94. Configure MPLS (Multiprotocol Label Switching) on an interface:
```
Router(config)# interface <interface>
Router(config-if)# mpls ip
```

95. Configure IP SLA (Service Level Agreement) for network monitoring:
```
Router(config)# ip sla <sla-number>
Router(config-ip-sla)# icmp-echo <target-ip-address>
Router(config-ip-sla-echo)# timeout <timeout-value>
Router(config)# ip sla schedule <sla-number> life <life-duration>
```

96. Configure DHCP relay agent with GIADDR (Gateway IP Address) override:
```
Router(config)# interface <interface>
Router(config-if)# ip helper-address <dhcp-server-ip-address>
Router(config-if)# ip dhcp relay information trust-all
```

97. Configure BGP (Border Gateway Protocol) route filtering using AS-path access list:
```
Router(config)# ip as-path access-list <access-list-number> permit <as-path-regex>
Router(config)# router bgp <AS-number>
Router(config-router)# neighbor <neighbor-ip-address> filter-list <access-list-number> in|out
```

98. Configure PortFast on an interface:
```
Switch(config)# interface <interface>
Switch(config-if)# spanning-tree portfast
```

99. Configure VRRP (Virtual Router Redundancy Protocol) tracking:
```
Router(config)# interface <interface>
Router(config-if)# vrrp <group-number> track <object> <priority-decrement>
```

100. Configure GRE (Generic Routing Encapsulation) tunnel with IPsec:
```
Router(config)# interface tunnel <tunnel-number>
Router(config-if)# tunnel source <source-ip-address>
Router(config-if)# tunnel destination <destination-ip-address>
Router(config-if)# tunnel protection ipsec profile <profile-name>
```

These commands cover a range of topics including VTY line access, QoS, port security, MPLS, IP SLA, DHCP relay, BGP route filtering, PortFast, VRRP tracking, and GRE tunnels with IPsec. Please note that this list is not exhaustive, and there are many more configuration options available in Cisco IOS for CCNA-level knowledge. Always refer to official Cisco documentation and study materials for a comprehensive understanding of the commands and their usage.

Here are a few more command line prompt configuration terminal syntaxes:


101. Configure EtherChannel (Link Aggregation) with LACP (Link Aggregation Control Protocol):
```
Switch(config)# interface port-channel <channel-group-number>
Switch(config-if)# switchport mode <access|trunk>
Switch(config-if)# channel-group <channel-group-number> mode active
```

102. Configure BGP (Border Gateway Protocol) route redistribution using route-map:
```
Router(config)# route-map <route-map-name> permit <sequence-number>
Router(config-route-map)# match <match-criteria>
Router(config-route-map)# set <set-action>
Router(config)# router bgp <AS-number>
Router(config-router)# redistribute <protocol> route-map <route-map-name>
```

103. Configure MPLS LDP (Label Distribution Protocol):
```
Router(config)# mpls label protocol ldp
Router(config)# interface <interface>
Router(config-if)# mpls ip
```

104. Configure DHCPv4 relay agent:
```
Router(config)# interface <interface>
Router(config-if)# ip helper-address <dhcp-server-ip-address>
```

105. Configure EIGRP (Enhanced Interior Gateway Routing Protocol) stub routing:
```
Router(config)# router eigrp <AS-number>
Router(config-router)# eigrp stub [connected|summary|redistributed]
```

106. Configure VTP (VLAN Trunking Protocol) pruning:
```
Switch(config)# interface <interface>
Switch(config-if)# switchport trunk pruning vlan <vlan-list>
```

107. Configure AAA (Authentication, Authorization, and Accounting) authentication for console and VTY lines:
```
Router(config)# aaa new-model
Router(config)# aaa authentication login default <authentication-method>
Router(config)# line console 0
Router(config-line)# login authentication default
Router(config)# line vty 0 4
Router(config-line)# login authentication default
```

108. Configure BGP (Border Gateway Protocol) route reflector:
```
Router(config)# router bgp <AS-number>
Router(config-router)# bgp cluster-id <cluster-id>
Router(config-router)# neighbor <neighbor-ip-address> route-reflector-client
```

109. Configure IP SLA (Service Level Agreement) tracking with Object Tracking:
```
Router(config)# track <track-number> ip sla <sla-number> reachability
Router(config)# ip route <destination-network> <subnet-mask> <next-hop-ip-address> track <track-number>
```

110. Configure EEM (Embedded Event Manager) for automated tasks:
```
Router(config)# event manager applet <applet-name>
Router(config-applet)# event <event-type> <event-parameters>
Router(config-applet)# action <action-type> <action-parameters>
```

These additional commands cover topics such as EtherChannel, BGP route redistribution, MPLS LDP, DHCP relay, EIGRP stub routing, VTP pruning, AAA authentication, BGP route reflector, IP SLA tracking, and EEM for automated tasks. However, please note that this list is not exhaustive, and there are many more configuration options available in Cisco IOS for CCNA-level knowledge. Always refer to official Cisco documentation and study materials for a comprehensive understanding of the commands and their usage.

Here are a few more command line prompt configuration terminal syntaxes:


111. Configure HSRP (Hot Standby Router Protocol) preempt delay minimum:
```
Router(config)# interface <interface>
Router(config-if)# standby <group-number> preempt delay minimum <seconds>
```

112. Configure DHCPv6 (Dynamic Host Configuration Protocol for IPv6):
```
Router(config)# ipv6 dhcp pool <pool-name>
Router(config-dhcpv6)# address prefix <ipv6-prefix> <prefix-length>
Router(config-dhcpv6)# dns-server <dns-server-address>
```

113. Configure VACL (VLAN Access Control List) for Layer 3 traffic filtering:
```
Switch(config)# vlan access-map <acl-name> <sequence-number>
Switch(config-access-map)# match <match-criteria>
Switch(config-access-map)# action <permit|deny>
Switch(config-access-map)# exit
Switch(config)# vlan filter <acl-name> vlan-list <vlan-list>
```

114. Configure BGP (Border Gateway Protocol) route reflector client:
```
Router(config)# router bgp <AS-number>
Router(config-router)# neighbor <neighbor-ip-address> route-reflector-client
```

115. Configure NAT (Network Address Translation) with PAT (Port Address Translation):
```
Router(config)# interface <interface>
Router(config-if)# ip nat inside
Router(config-if)# exit
Router(config)# interface <interface>
Router(config-if)# ip nat outside
Router(config-if)# exit
Router(config)# ip nat inside source list <access-list-number> interface <interface> overload
```

116. Configure OSPF (Open Shortest Path First) summarization:
```
Router(config)# interface <interface>
Router(config-if)# ip ospf cost <cost>
Router(config-if)# ip ospf network <network-type>
Router(config)# router ospf <process-id>
Router(config-router)# area <area-id> range <summary-address> <summary-mask>
```

117. Configure DHCPv6 prefix delegation:
```
Router(config)# interface <interface>
Router(config-if)# ipv6 address autoconfig
Router(config-if)# ipv6 dhcp server <dhcp-server-pool-name>
```

118. Configure AAA (Authentication, Authorization, and Accounting) authorization:
```
Router(config)# aaa new-model
Router(config)# aaa authorization exec default <authorization-method>
```

119. Configure BGP (Border Gateway Protocol) route filtering using community-list:
```
Router(config)# ip community-list <community-list-number> permit <community-value>
Router(config)# router bgp <AS-number>
Router(config-router)# neighbor <neighbor-ip-address> filter-list <community-list-number> in|out
```

120. Configure VRF (Virtual Routing and Forwarding):
```
Router(config)# ip vrf <vrf-name>
Router(config-vrf)# rd <route-distinguisher>
Router(config-vrf)# route-target export <route-target>
Router(config-vrf)# route-target import <route-target>
Router(config-vrf)# exit
Router(config)# interface <interface>
Router(config-if)# ip vrf forwarding <vrf-name>
```

These commands cover topics such as HSRP preempt delay, DHCPv6, VACL, BGP route reflector, NAT with PAT, OSPF summarization, DHCPv6 prefix delegation, AAA authorization, BGP route filtering using community-list, and VRF. However, please note that this list is not exhaustive, and there are many more configuration options available in Cisco IOS for CCNA-level knowledge. Always refer to official Cisco documentation and study materials for a comprehensive understanding of the commands and their usage.

Here are a few more command line prompt configuration terminal syntaxes:


121. Configure BGP (Border Gateway Protocol) next-hop self:
```
Router(config)# router bgp <AS-number>
Router(config-router)# neighbor <neighbor-ip-address> next-hop-self
```

122. Configure VLAN (Virtual LAN) interface:
```
Switch(config)# interface vlan <vlan-number>
Switch(config-if)# ip address <ip-address> <subnet-mask>
```

123. Configure OSPF (Open Shortest Path First) virtual-link:
```
Router(config)# router ospf <process-id>
Router(config-router)# area <area-id> virtual-link <router-id>
```

124. Configure NTP (Network Time Protocol) synchronization:
```
Router(config)# ntp server <ntp-server-ip-address>
Router(config)# clock timezone <timezone-offset> <timezone-name>
```

125. Configure STP (Spanning Tree Protocol) root bridge priority:
```
Switch(config)# spanning-tree vlan <vlan-id> root primary
```

126. Configure BGP (Border Gateway Protocol) route dampening:
```
Router(config)# router bgp <AS-number>
Router(config-router)# bgp dampening
```

127. Configure VTP (VLAN Trunking Protocol) mode:
```
Switch(config)# vtp mode <client|server|transparent>
```

128. Configure EIGRP (Enhanced Interior Gateway Routing Protocol) passive interface:
```
Router(config)# router eigrp <AS-number>
Router(config-router)# passive-interface <interface>
```

129. Configure SNMP (Simple Network Management Protocol) community string:
```
Router(config)# snmp-server community <community-string> [RO|RW] [access-list-number]
```

130. Configure BGP (Border Gateway Protocol) Confederation:
```
Router(config)# router bgp <AS-number>
Router(config-router)# bgp confederation identifier <AS-number>
Router(config-router)# bgp confederation peers <peer-AS-number> <peer-ip-address>
```

131. Configure OSPF (Open Shortest Path First) authentication:
```
Router(config)# interface <interface>
Router(config-if)# ip ospf authentication [message-digest|key-chain <key-chain-name>]
```

132. Configure VRRP (Virtual Router Redundancy Protocol) authentication:
```
Router(config)# interface <interface>
Router(config-if)# vrrp <group-number> authentication text <authentication-key>
```

133. Configure BGP (Border Gateway Protocol) community attribute:
```
Router(config)# router bgp <AS-number>
Router(config-router)# neighbor <neighbor-ip-address> send-community
```

134. Configure PPPoE (Point-to-Point Protocol over Ethernet) client:
```
Router(config)# interface <interface>
Router(config-if)# pppoe enable
Router(config-if)# pppoe-client dial-pool-number <dialer-pool-number>
```

135. Configure EIGRP (Enhanced Interior Gateway Routing Protocol) named mode:
```
Router(config)# router eigrp <AS-number> named-mode
```

These commands cover a range of topics including BGP, VLAN interface, OSPF virtual-link, NTP synchronization, STP root bridge priority, BGP route dampening, VTP mode, EIGRP passive interface, SNMP community string, BGP Confederation, OSPF authentication, VRRP authentication, BGP community attribute, PPPoE client, and EIGRP named mode. However, please note that this list is not exhaustive, and there are many more configuration options available in Cisco IOS for CCNA-level knowledge. Always refer to official Cisco documentation and study materials for a comprehensive understanding of the commands and their usage.

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