Command Line Interface Guide
Page 23
clear arp-cache 652 clear arp-cache management 653 ip proxy-arp 654 show arp 654 33 DHCP and BOOTP Relay Commands . . . 657 bootpdhcprelay maxhopcount 659 bootpdhcprelay minwaittime 659 bootpdhcprelay cidridoptmode 660 show bootpdhcprelay 661 34 DHCPv6 Commands 663 dns-server 664 domain-name 665 ipv6 dhcp pool 666 ipv6 dhcp relay 667 ipv6 dhcp relay-agent-info-opt 668 ipv6 dhcp relay-agent-info-remote-id-subopt. . . . . . 669 ipv6 dhcp server 669 prefix-delegation 670 service dhcpv6 671 show ipv6 dhcp 672 Contents 23
clear arp-cache 652 clear arp-cache management 653 ip proxy-arp 654 show arp 654 33 DHCP and BOOTP Relay Commands . . . 657 bootpdhcprelay maxhopcount 659 bootpdhcprelay minwaittime 659 bootpdhcprelay cidridoptmode 660 show bootpdhcprelay 661 34 DHCPv6 Commands 663 dns-server 664 domain-name 665 ipv6 dhcp pool 666 ipv6 dhcp relay 667 ipv6 dhcp relay-agent-info-opt 668 ipv6 dhcp relay-agent-info-remote-id-subopt. . . . . . 669 ipv6 dhcp server 669 prefix-delegation 670 service dhcpv6 671 show ipv6 dhcp 672 Contents 23
Command Line Interface Guide
Page 56
...feature. 56 Command Groups System Command Groups (continued) Command Group Description Address Table Configures bridging address tables. DHCP l2 Relay Enables the Layer 2 DHCP Relay agent for example ports, storm control, port speed and auto-negotiation. Dynamic ARP Inspection Configures for filtering...configuration and IGMP information. IPv6 MLD Snooping Configures IPv6 MLD Snooping. QoS Configures and displays QoS information. DHCP Snooping Configures DHCP snooping and whether an interface is trusted for rejection of invalid and malicious ARP packets. LLDP Configures and ...
...feature. 56 Command Groups System Command Groups (continued) Command Group Description Address Table Configures bridging address tables. DHCP l2 Relay Enables the Layer 2 DHCP Relay agent for example ports, storm control, port speed and auto-negotiation. Dynamic ARP Inspection Configures for filtering...configuration and IGMP information. IPv6 MLD Snooping Configures IPv6 MLD Snooping. QoS Configures and displays QoS information. DHCP Snooping Configures DHCP snooping and whether an interface is trusted for rejection of invalid and malicious ARP packets. LLDP Configures and ...
Command Line Interface Guide
Page 65
... Configures the persistent location of DHCP IC messages. dhcp l2relay trust Configures an interface to set the DHCP Option 82 GC Remote ID for a VLAN. DHCP Snooping Command Description Mode* clear ip dhcp snooping Clears all DHCP Snooping statistics. dhcp l2relay vlan Enables the L2 DHCP Relay agent for an GC/IC interface. ip dhcp snooping loginvalid Enables logging of...
... Configures the persistent location of DHCP IC messages. dhcp l2relay trust Configures an interface to set the DHCP Option 82 GC Remote ID for a VLAN. DHCP Snooping Command Description Mode* clear ip dhcp snooping Clears all DHCP Snooping statistics. dhcp l2relay vlan Enables the L2 DHCP Relay agent for an GC/IC interface. ip dhcp snooping loginvalid Enables logging of...
Command Line Interface Guide
Page 90
...proxy-arp Enables proxy ARP on the system. 90 Command Groups show arp Displays the Address Resolution Protocol (ARP) PE cache. DHCP and BOOTP Relay (IPv4) Command bootpdhcprelay cidridoptmode Description Mode* Enables the circuit ID option and remote agent GC ID mode for retries. clear arp...-cache management Removes all ARP entries of maximum request GC for BootP/DHCP Relay on a router interface. NOTE: *For the meaning of entries in GC the ARP cache. GC clear arp-cache Removes all entries...
...proxy-arp Enables proxy ARP on the system. 90 Command Groups show arp Displays the Address Resolution Protocol (ARP) PE cache. DHCP and BOOTP Relay (IPv4) Command bootpdhcprelay cidridoptmode Description Mode* Enables the circuit ID option and remote agent GC ID mode for retries. clear arp...-cache management Removes all ARP entries of maximum request GC for BootP/DHCP Relay on a router interface. NOTE: *For the meaning of entries in GC the ARP cache. GC clear arp-cache Removes all entries...
Command Line Interface Guide
Page 91
...which is v6DP provided to a DHCPv6 client by the DHCPv6 server. GC ipv6 dhcp relay Configures an interface for PE a specific interface. ipv6 dhcp relay-agent-info- ipv6 dhcp server Configures DHCPv6 server functionality on page 60. Command Description Mode* bootpdhcprelay maxhopcount ... which is provided v6DP to specific DHCPv6 Prefix delegation clients. ipv6 dhcp relay-agent-info- GC show ipv6 dhcp Displays the DHCPv6 server name and status. ipv6 dhcp pool Enters IPv6 DHCP Pool Configuration mode. prefix-delegation Defines Multiple IPv6 prefixes within a ...
...which is v6DP provided to a DHCPv6 client by the DHCPv6 server. GC ipv6 dhcp relay Configures an interface for PE a specific interface. ipv6 dhcp relay-agent-info- ipv6 dhcp server Configures DHCPv6 server functionality on page 60. Command Description Mode* bootpdhcprelay maxhopcount ... which is provided v6DP to specific DHCPv6 Prefix delegation clients. ipv6 dhcp relay-agent-info- GC show ipv6 dhcp Displays the DHCPv6 server name and status. ipv6 dhcp pool Enters IPv6 DHCP Pool Configuration mode. prefix-delegation Defines Multiple IPv6 prefixes within a ...
Command Line Interface Guide
Page 252
... user guidelines for an interface. Use the "no " form of this section can only be used when the L2-DHCP relay is disabled by default. 252 DHCP Layer 2 Relay Commands Syntax dhcp l2relay no dhcp l2relay Default Configuration DHCP L2Relay is disabled on all interfaces by default. The subsequent commands mentioned in this command to enable layer...
... user guidelines for an interface. Use the "no " form of this section can only be used when the L2-DHCP relay is disabled by default. 252 DHCP Layer 2 Relay Commands Syntax dhcp l2relay no dhcp l2relay Default Configuration DHCP L2Relay is disabled on all interfaces by default. The subsequent commands mentioned in this command to enable layer...
Command Line Interface Guide
Page 255
... (Ethernet). Command Mode Global Configuration mode User Guidelines There are subject to L2 Relay processing. Example console(config-if-1/g1)#dhcp l2relay trust dhcp l2relay vlan Use the dhcp l2relay vlan command to disable L2 DHCP Relay for a set of this command. All DHCP packets which arrive on all VLANs by default. The list of VLANs. Default...
... (Ethernet). Command Mode Global Configuration mode User Guidelines There are subject to L2 Relay processing. Example console(config-if-1/g1)#dhcp l2relay trust dhcp l2relay vlan Use the dhcp l2relay vlan command to disable L2 DHCP Relay for a set of this command. All DHCP packets which arrive on all VLANs by default. The list of VLANs. Default...
Command Line Interface Guide
Page 658
...command has no form of the command to enable the circuit ID option and remote agent ID mode for BootP/DHCP Relay on the system. minwaittime Configure the minimum wait time. bootpdhcprelay cidridoptmode Use the bootpdhcprelay cidridoptmode command in Global ...Configuration mode to disable the circuit ID option and remote agent ID mode for BootP/DHCP Relay. console(config)#bootpdhcprelay ? maxhopcount Configure the maximum hop count. cidridoptmode........... Syntax bootpdhcprelay cidridoptmode arpshow arpw arpoptshshow arposhow arpwshow ...
...command has no form of the command to enable the circuit ID option and remote agent ID mode for BootP/DHCP Relay on the system. minwaittime Configure the minimum wait time. bootpdhcprelay cidridoptmode Use the bootpdhcprelay cidridoptmode command in Global ...Configuration mode to disable the circuit ID option and remote agent ID mode for BootP/DHCP Relay. console(config)#bootpdhcprelay ? maxhopcount Configure the maximum hop count. cidridoptmode........... Syntax bootpdhcprelay cidridoptmode arpshow arpw arpoptshshow arposhow arpwshow ...
Command Line Interface Guide
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... following example defines a maximum hopcount of the command to set the maximum hop count to configure the maximum allowable relay agent hops for BootP/DHCP Relay on the system. Use the no form of the request as a factor in deciding whether to the default value...6 bootpdhcprelay minwaittime Use the bootpdhcprelay minwaittime command in Global Configuration mode to configure the minimum wait time in seconds for BootP/DHCP Relay on the system. Command Mode Global Configuration mode User Guidelines This command has no bootpdhcprelay maxhshoshow arpshow arpw arpopcshow arpsshshow show ...
... following example defines a maximum hopcount of the command to set the maximum hop count to configure the maximum allowable relay agent hops for BootP/DHCP Relay on the system. Use the no form of the request as a factor in deciding whether to the default value...6 bootpdhcprelay minwaittime Use the bootpdhcprelay minwaittime command in Global Configuration mode to configure the minimum wait time in seconds for BootP/DHCP Relay on the system. Command Mode Global Configuration mode User Guidelines This command has no bootpdhcprelay maxhshoshow arpshow arpw arpopcshow arpsshshow show ...
Command Line Interface Guide
Page 660
...Use the bootpdhcprelay cidridoptmode command in Global Configuration mode to disable the circuit ID option and remote agent ID mode for BootP/DHCP Relay. Use the 'no' form of 10 seconds. Syntax bootpdhcprelay cidridoptmode arpshow arpw arpoptshshow arposhow arpwshow arp arpshoshow arpw arpshow ... arp arp arp ashow arprpwaittime • integer - Minimum wait time for BootP/DHCP Relay on the system. (Range: 0-100 seconds) Default Configuration 0 is the default configuration. 660 DHCP and BOOTP Relay Commands Example The following example defines a minimum wait time of the command to ...
...Use the bootpdhcprelay cidridoptmode command in Global Configuration mode to disable the circuit ID option and remote agent ID mode for BootP/DHCP Relay. Use the 'no' form of 10 seconds. Syntax bootpdhcprelay cidridoptmode arpshow arpw arpoptshshow arposhow arpwshow arp arpshoshow arpw arpshow ... arp arp arp ashow arprpwaittime • integer - Minimum wait time for BootP/DHCP Relay on the system. (Range: 0-100 seconds) Default Configuration 0 is the default configuration. 660 DHCP and BOOTP Relay Commands Example The following example defines a minimum wait time of the command to ...
Command Line Interface Guide
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Syntax show bootpdhcprelay command in User EXEC mode to display the BootP/DHCP Relay information. Example The following example enables the circuit ID and remote agent ID options. show bootpdhcprelay Use the show bootpdhcprelay Default Configuration The command has ...(config)#bootpdhcprelay cidridoptmode Circuit Id and Remote Agent Id Mode set Successfully. Command Mode User EXEC mode User Guidelines This command has no user guidelines. DHCP and BOOTP Relay Commands 661 Command Mode Global Configuration mode User Guidelines This command has no user guidelines.
Syntax show bootpdhcprelay command in User EXEC mode to display the BootP/DHCP Relay information. Example The following example enables the circuit ID and remote agent ID options. show bootpdhcprelay Use the show bootpdhcprelay Default Configuration The command has ...(config)#bootpdhcprelay cidridoptmode Circuit Id and Remote Agent Id Mode set Successfully. Command Mode User EXEC mode User Guidelines This command has no user guidelines. DHCP and BOOTP Relay Commands 661 Command Mode Global Configuration mode User Guidelines This command has no user guidelines.
Command Line Interface Guide
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Example The following example defines the Boot/DHCP Relay information. console#show bootpdhcprelay Maximum Hop Count 4 Minimum Wait Time(Seconds 0 Circuit Id Option Mode Disable 662 DHCP and BOOTP Relay Commands
Example The following example defines the Boot/DHCP Relay information. console#show bootpdhcprelay Maximum Hop Count 4 Minimum Wait Time(Seconds 0 Circuit Id Option Mode Disable 662 DHCP and BOOTP Relay Commands
Command Line Interface Guide
Page 663
DHCPv6 Commands This chapter explains the following commands: • clear ipv6 dhcp • dns-server • domain-name • ipv6 dhcp pool • ipv6 dhcp relay • ipv6 dhcp relay-agent-info-opt • ipv6 dhcp relay-agent-info-remote-id-subopt • ipv6 dhcp server • prefix-delegation • service dhcpv6 • show ipv6 dhcp • show ipv6 dhcp binding • show ipv6 dhcp interface • show ipv6 dhcp pool • show ipv6 dhcp statistics 32 DHCPv6 Commands 663
DHCPv6 Commands This chapter explains the following commands: • clear ipv6 dhcp • dns-server • domain-name • ipv6 dhcp pool • ipv6 dhcp relay • ipv6 dhcp relay-agent-info-opt • ipv6 dhcp relay-agent-info-remote-id-subopt • ipv6 dhcp server • prefix-delegation • service dhcpv6 • show ipv6 dhcp • show ipv6 dhcp binding • show ipv6 dhcp interface • show ipv6 dhcp pool • show ipv6 dhcp statistics 32 DHCPv6 Commands 663
Command Line Interface Guide
Page 667
... causes the "remote ID" to be derived from the DHCPv6 server DUID and the relay interface number, or it can be added to relayed messages. console(config)#ipv6 dhcp pool addrpool console(config-dhcp6s-pool)# ipv6 dhcp relay Use the ipv6 dhcp relay command in Interface Configuration mode to be specified as a user-defined string. Example The...
... causes the "remote ID" to be derived from the DHCPv6 server DUID and the relay interface number, or it can be added to relayed messages. console(config)#ipv6 dhcp pool addrpool console(config-dhcp6s-pool)# ipv6 dhcp relay Use the ipv6 dhcp relay command in Interface Configuration mode to be specified as a user-defined string. Example The...
Command Line Interface Guide
Page 668
... option is required. console(config)#interface vlan 15 console(config-if-vlan15)#ipv6 dhcp relay destination 2020:1::1 ipv6 dhcp relay-agent-info-opt Use ipv6 dhcp relay-agent-info-opt command in determining an address to assign to the relay server. The DHCPv6 Relay Agent Information Option allows for various sub-options to be specified and the DHCPV6...
... option is required. console(config)#interface vlan 15 console(config-if-vlan15)#ipv6 dhcp relay destination 2020:1::1 ipv6 dhcp relay-agent-info-opt Use ipv6 dhcp relay-agent-info-opt command in determining an address to assign to the relay server. The DHCPv6 Relay Agent Information Option allows for various sub-options to be specified and the DHCPV6...
Command Line Interface Guide
Page 669
... guidelines. For a particular interface DHCPv6 server and DHCPv6 relay functions are mutually exclusive. console(config)#ipv6 dhcp relay-agent-info-opt 100 ipv6 dhcp relay-agent-info-remote-id-subopt Use the ipv6 dhcp relay-agent-info-remote-id-subopt command in Interface Configuration mode...id" sub-option. console(config)#ipv6 dhcp relay-agent-info-remote-idsubopt 100 ipv6 dhcp server Use the ipv6 dhcp server command in Global Configuration mode to configure a number to represent the DHCPv6 Relay Agent Information Option. Syntax ipv6 dhcp relay-agent-info-remote-id-subopt suboption •...
... guidelines. For a particular interface DHCPv6 server and DHCPv6 relay functions are mutually exclusive. console(config)#ipv6 dhcp relay-agent-info-opt 100 ipv6 dhcp relay-agent-info-remote-id-subopt Use the ipv6 dhcp relay-agent-info-remote-id-subopt command in Interface Configuration mode...id" sub-option. console(config)#ipv6 dhcp relay-agent-info-remote-idsubopt 100 ipv6 dhcp server Use the ipv6 dhcp server command in Global Configuration mode to configure a number to represent the DHCPv6 Relay Agent Information Option. Syntax ipv6 dhcp relay-agent-info-remote-id-subopt suboption •...
Command Line Interface Guide
Page 717
... client The number of valid messages received from the DHCP messages received server. UDP client messages relayed The number of DHCP responses received from a DHCP client. DHCP server The number of UDP packets relayed. This count includes messages received DHCP messages and all other protocols relayed. The DHCP relay agent does not relay these packets. Syntax show bootpdhcprelay. This count only...
... client The number of valid messages received from the DHCP messages received server. UDP client messages relayed The number of DHCP responses received from a DHCP client. DHCP server The number of UDP packets relayed. This count includes messages received DHCP messages and all other protocols relayed. The DHCP relay agent does not relay these packets. Syntax show bootpdhcprelay. This count only...
Command Line Interface Guide
Page 718
..... 0 Packets with secs fields that might otherwise have been relayed. entry Example console#show bootpdhcprelay. DHCP message with secs field below min......... 0 DHCP message with giaddr set to spoof the relay agent's address. The DHCP relay agent does not relay these packets. Packets that The number of DHCP client messages received whose gateway address, giaddr, is written for...
..... 0 Packets with secs fields that might otherwise have been relayed. entry Example console#show bootpdhcprelay. DHCP message with secs field below min......... 0 DHCP message with giaddr set to spoof the relay agent's address. The DHCP relay agent does not relay these packets. Packets that The number of DHCP client messages received whose gateway address, giaddr, is written for...
User's Guide
Page 12
DHCP Snooping 446 DHCP Snooping Configuration 447 DHCP Snooping Interface Configuration 448 DHCP Snooping VLAN Configuration 451 DHCP Snooping Persistent Configuration 452 DHCP Snooping Static Bindings Configuration 454 DHCP Snooping Dynamic Bindings Summary 456 DHCP Snooping Statistics 457 DHCP Relay 459 DHCP Relay Global Configuration 459 DHCP Relay Interface Configuration 460 DHCP Relay Interface Statistics 462 DHCP Relay VLAN Configuration 463 8 Viewing Statistics and Remote Monitoring Overview 467 Table...
DHCP Snooping 446 DHCP Snooping Configuration 447 DHCP Snooping Interface Configuration 448 DHCP Snooping VLAN Configuration 451 DHCP Snooping Persistent Configuration 452 DHCP Snooping Static Bindings Configuration 454 DHCP Snooping Dynamic Bindings Summary 456 DHCP Snooping Statistics 457 DHCP Relay 459 DHCP Relay Global Configuration 459 DHCP Relay Interface Configuration 460 DHCP Relay Interface Statistics 462 DHCP Relay VLAN Configuration 463 8 Viewing Statistics and Remote Monitoring Overview 467 Table...
User's Guide
Page 13
... 537 Virtual Link Configuration 539 Virtual Link Summary 545 Route Redistribution Configuration 546 Route Redistribution Summary 548 Nonstop Forwarding OSPF Graceful Restart 549 BOOTP/DHCP Relay Agent 551 BOOTP/DHCP Relay Agent Configuration 552 IP Helper 553 IP Helper Global Configuration 554 IP Helper Interface Configuration 556 IP Helper Statistics 558 RIP 560 RIP...
... 537 Virtual Link Configuration 539 Virtual Link Summary 545 Route Redistribution Configuration 546 Route Redistribution Summary 548 Nonstop Forwarding OSPF Graceful Restart 549 BOOTP/DHCP Relay Agent 551 BOOTP/DHCP Relay Agent Configuration 552 IP Helper 553 IP Helper Global Configuration 554 IP Helper Interface Configuration 556 IP Helper Statistics 558 RIP 560 RIP...