Command Line Interface Guide
Page 11
show arp switch 364 show hosts 364 show ip helper-address 365 show ip interface management 367 16 IPv6 Access List Commands 369 ipv6 access-list 372 ipv6 access-list rename 373 ipv6 traffic-filter 373 show ipv6 access-...
show arp switch 364 show hosts 364 show ip helper-address 365 show ip interface management 367 16 IPv6 Access List Commands 369 ipv6 access-list 372 ipv6 access-list rename 373 ipv6 traffic-filter 373 show ipv6 access-...
Command Line Interface Guide
Page 57
...VLAN Voice VLAN 802.1x Layer 3 Commands ARP (IPv4) DHCP and BOOTP Relay (IPv4) DHCPv6 DVMRP (Mcast) IGMP (Mcast) IGMP Proxy (Mcast) IP Helper IP Routing (IPv4) IPv6 Multicast IPv6 Routing Loopback Interface (IPv6) Multicast (Mcast) OSPF (IPv4)_ OSPFv3 (IPv6) PIM-DM (Mcast) PIM-SM (Mcast...VLAN information Configures and displays commands related to 802.1x security protocol. Configures DVMRP operations. Configures relay of UDP packets. Configures IP routing and addressing. Manages Multicasting on the system. Table 1-1. Configures PIM-DM operations. Manages IGMP Proxy on the system. Manages...
...VLAN Voice VLAN 802.1x Layer 3 Commands ARP (IPv4) DHCP and BOOTP Relay (IPv4) DHCPv6 DVMRP (Mcast) IGMP (Mcast) IGMP Proxy (Mcast) IP Helper IP Routing (IPv4) IPv6 Multicast IPv6 Routing Loopback Interface (IPv6) Multicast (Mcast) OSPF (IPv4)_ OSPFv3 (IPv6) PIM-DM (Mcast) PIM-SM (Mcast...VLAN information Configures and displays commands related to 802.1x security protocol. Configures DVMRP operations. Configures relay of UDP packets. Configures IP routing and addressing. Manages Multicasting on the system. Table 1-1. Configures PIM-DM operations. Manages IGMP Proxy on the system. Manages...
Command Line Interface Guide
Page 71
... to -address GC mapping in the ARP table. show ip interface management Displays the management IP interface PE information. PE show ip helper-address Displays the ip helper addresses configuration. IP Addressing Command Description Mode* clear host Deletes entries from the GC DHCP server. ip address Sets a management IP address on the management interface. ipv6 enable Enable IPv6 on...
... to -address GC mapping in the ARP table. show ip interface management Displays the management IP interface PE information. PE show ip helper-address Displays the ip helper addresses configuration. IP Addressing Command Description Mode* clear host Deletes entries from the GC DHCP server. ip address Sets a management IP address on the management interface. ipv6 enable Enable IPv6 on...
Command Line Interface Guide
Page 94
...: *For the meaning of DHCP and other UDP PE packets processed and relayed by the UDP relay agent. PE show ip PE helper statistics. IP Helper Command Description Mode* clear ip helper statistics Resets (to 0) the statistics displayed in show ip helper statistics Displays the number of each Mode abbreviation, see "Mode Types" on the router. GC show...
...: *For the meaning of DHCP and other UDP PE packets processed and relayed by the UDP relay agent. PE show ip PE helper statistics. IP Helper Command Description Mode* clear ip helper statistics Resets (to 0) the statistics displayed in show ip helper statistics Displays the number of each Mode abbreviation, see "Mode Types" on the router. GC show...
Command Line Interface Guide
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IP Addressing Commands This chapter explains the following commands: • clear host • ip address • ip address dhcp • ip address vlan • ip default-gateway • ip domain-lookup • ip domain-name • ip host • ip name-server • ipv6 address • ipv6 enable • ipv6 gateway • show arp switch • show hosts • show ip helper-address • show ip interface management 14 IP Addressing Commands 353
IP Addressing Commands This chapter explains the following commands: • clear host • ip address • ip address dhcp • ip address vlan • ip default-gateway • ip domain-lookup • ip domain-name • ip host • ip name-server • ipv6 address • ipv6 enable • ipv6 gateway • show arp switch • show hosts • show ip helper-address • show ip interface management 14 IP Addressing Commands 353
Command Line Interface Guide
Page 365
... Mode User EXEC mode User Guidelines This command has no default configuration. www.stanford.edu 72 3 1.64.14.203 IP 17 show ip helper-address Use the show hosts Host name: Default domain: gm.com, sales.gm.com, usa.sales.gm.com Name/address... lookup is enabled Name servers (Preference order): 176.16.1.18 176.16.1.19 Configured host name-to display IP helper addresses configuration. IP Addressing Commands 365 console>show ip helper-address command in Privileged EXEC mode to -address mapping: Host Addresses accounting.gm.com 176.16.8.8 Cache: TTL ...
... Mode User EXEC mode User Guidelines This command has no default configuration. www.stanford.edu 72 3 1.64.14.203 IP 17 show ip helper-address Use the show hosts Host name: Default domain: gm.com, sales.gm.com, usa.sales.gm.com Name/address... lookup is enabled Name servers (Preference order): 176.16.1.18 176.16.1.19 Configured host name-to display IP helper addresses configuration. IP Addressing Commands 365 console>show ip helper-address command in Privileged EXEC mode to -address mapping: Host Addresses accounting.gm.com 176.16.8.8 Cache: TTL ...
Command Line Interface Guide
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... [intf-address ] • intf-address - Command Mode Privileged EXEC mode User Guidelines This command has no default configuration. Syntax show ip helper-address IP helper is enabled Interface Server Address UDP Port Discard Hit Count vlan 25 192.168.40.2 domain No 0 vlan 25 192.168.40.2 ...dhcp No 0 vlan 30 dhcp Yes 0 vlan 30 192.168.23.1 162 No 0 Any 192.168.40.1 dhcp No 0 366 IP Addressing Commands IP address of a routing...
... [intf-address ] • intf-address - Command Mode Privileged EXEC mode User Guidelines This command has no default configuration. Syntax show ip helper-address IP helper is enabled Interface Server Address UDP Port Discard Hit Count vlan 25 192.168.40.2 domain No 0 vlan 25 192.168.40.2 ...dhcp No 0 vlan 30 dhcp Yes 0 vlan 30 192.168.23.1 162 No 0 Any 192.168.40.1 dhcp No 0 366 IP Addressing Commands IP address of a routing...
Command Line Interface Guide
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... 3 topics: • ARP Commands • DHCP and BOOTP Relay Commands • DHCPv6 Commands • DVMRP Commands • IGMP Commands • IGMP Proxy Commands • IP Helper Commands • IP Routing Commands • IPv6 MLD Snooping Commands • IPv6 Multicast Commands • IPv6 Routing Commands • Loopback Interface Commands • Multicast Commands • OSPF...
... 3 topics: • ARP Commands • DHCP and BOOTP Relay Commands • DHCPv6 Commands • DVMRP Commands • IGMP Commands • IGMP Proxy Commands • IP Helper Commands • IP Routing Commands • IPv6 MLD Snooping Commands • IPv6 Multicast Commands • IPv6 Routing Commands • Loopback Interface Commands • Multicast Commands • OSPF...
Command Line Interface Guide
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IP Helper Commands This chapter explains the following commands: • clear ip helper statistics • ip helper-address (global configuration) • ip helper-address (interface configuration) • ip helper enable • show ip helper-address • show ip helper statistics 36 IP Helper Commands 709
IP Helper Commands This chapter explains the following commands: • clear ip helper statistics • ip helper-address (global configuration) • ip helper-address (interface configuration) • ip helper enable • show ip helper-address • show ip helper statistics 36 IP Helper Commands 709
Command Line Interface Guide
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...EXEC mode User Guidelines There are sent. To delete an IP helper entry, use the no form of the local router. 710 IP Helper Commands Example console#clear ip helper statistics ip helper-address (global configuration) Use the ip helper-address (global configuration) command to configure the relay of... broadcast address to 0 the statistics displayed in show ip helper statistics. The server address cannot be an IP address configured on any interface of this command. clear ip helper statistics Use the clear ip helper statistics command to reset to which relayed UDP broadcast ...
...EXEC mode User Guidelines There are sent. To delete an IP helper entry, use the no form of the local router. 710 IP Helper Commands Example console#clear ip helper statistics ip helper-address (global configuration) Use the ip helper-address (global configuration) command to configure the relay of... broadcast address to 0 the statistics displayed in show ip helper statistics. The server address cannot be an IP address configured on any interface of this command. clear ip helper statistics Use the clear ip helper statistics command to reset to which relayed UDP broadcast ...
Command Line Interface Guide
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...- A destination UDP port number from 0 to specify multiple port numbers handled by its name has no arguments clears all global IP helper addresses. Whether a port is specified by number. The destination UDP port may be specified by its number or its name. Other...interface to two DHCP servers, 10.1.1.1 and 10.1.2.1, use the following commands: console#config console(config)#ip helper-address 10.1.1.1 dhcp console(config)#ip helper-address 10.1.2.1 dhcp IP Helper Commands 711 Example To relay DHCP packets received on behavior. User Guidelines This command can be invoked ...
...- A destination UDP port number from 0 to specify multiple port numbers handled by its name has no arguments clears all global IP helper addresses. Whether a port is specified by number. The destination UDP port may be specified by its number or its name. Other...interface to two DHCP servers, 10.1.1.1 and 10.1.2.1, use the following commands: console#config console(config)#ip helper-address 10.1.1.1 dhcp console(config)#ip helper-address 10.1.2.1 dhcp IP Helper Commands 711 Example To relay DHCP packets received on behavior. User Guidelines This command can be invoked ...
Command Line Interface Guide
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... on a specific interface. The names recognized are sent. Other ports must be optionally specified by number. 712 IP Helper Commands Whether a port is specified by its number or its name. The server address cannot be discarded rather than relayed, even ...time (port 37). To delete a relay entry on an interface, use the following commands: console#config console(config)#ip helper-address 20.1.1.1 ip helper-address (interface configuration) Use the ip helper-address (interface configuration) command to 65535. • port-name - To relay UDP packets received on any interface ...
... on a specific interface. The names recognized are sent. Other ports must be optionally specified by number. 712 IP Helper Commands Whether a port is specified by its number or its name. The server address cannot be discarded rather than relayed, even ...time (port 37). To delete a relay entry on an interface, use the following commands: console#config console(config)#ip helper-address 20.1.1.1 ip helper-address (interface configuration) Use the ip helper-address (interface configuration) command to 65535. • port-name - To relay UDP packets received on any interface ...
Command Line Interface Guide
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....1 and 192.168.20.1, use the following commands: console#config console(config)#interface vlan 5 console(config-if-vlan5)#ip helper-address 192.168.10.1 dhcp console(config-if-vlan5)#ip helper-address 192.168.20.1 dhcp To relay both DHCP and DNS packets to specify multiple port numbers handled by a... are configured. User Guidelines This command can be invoked multiple times on the interface. The command no ip helper-address with no arguments clears all helper addresses on routing interface, either to specify multiple server addresses for a given port number or to 192.168.30.1, use the ...
....1 and 192.168.20.1, use the following commands: console#config console(config)#interface vlan 5 console(config-if-vlan5)#ip helper-address 192.168.10.1 dhcp console(config-if-vlan5)#ip helper-address 192.168.20.1 dhcp To relay both DHCP and DNS packets to specify multiple port numbers handled by a... are configured. User Guidelines This command can be invoked multiple times on the interface. The command no ip helper-address with no arguments clears all helper addresses on routing interface, either to specify multiple server addresses for a given port number or to 192.168.30.1, use the ...
Command Line Interface Guide
Page 714
... 5 console(config-if-vlan5)#ip helper-address 192.168.40.2 dhcp console(config-if-vlan5)#ip helper-address 192.168.40.2 domain console(config-if-vlan5)#exit console(config)#interface 2/6 console(config-if-vlan6)#ip helper-address 192.168.23.1 162 console(config-if-vlan6)#ip helper-address discard dhcp ip helper enable Use the ip helper enable command to enable relay...
... 5 console(config-if-vlan5)#ip helper-address 192.168.40.2 dhcp console(config-if-vlan5)#ip helper-address 192.168.40.2 domain console(config-if-vlan5)#exit console(config)#interface 2/6 console(config-if-vlan6)#ip helper-address 192.168.23.1 162 console(config-if-vlan6)#ip helper-address discard dhcp ip helper enable Use the ip helper enable command to enable relay...
Command Line Interface Guide
Page 715
...configuration of any other protocols for which an IP helper address has been configured. Optionally specify an interface to limit the output to temporarily disable IP helper without deleting all IP helper addresses. Default Configuration This command has no default...Example console(config)#ip helper enable show ip helper-address Use the show ip helper-address [ interface ] • interface - The interface is enabled by default. Default Configuration IP helper is identified as vlan vlanid. Syntax show ip helper-address command to display the IP helper address configuration. ...
...configuration of any other protocols for which an IP helper address has been configured. Optionally specify an interface to limit the output to temporarily disable IP helper without deleting all IP helper addresses. Default Configuration This command has no default...Example console(config)#ip helper enable show ip helper-address Use the show ip helper-address [ interface ] • interface - The interface is enabled by default. Default Configuration IP helper is identified as vlan vlanid. Syntax show ip helper-address command to display the IP helper address configuration. ...
Command Line Interface Guide
Page 716
... dhcp No 10 10.100.1.254 10.100.2.254 vlan 101 any Yes 2 any dhcp No 0 10.200.1.254 show ip helper statistics Use the show ip helper statistics command to display the number of DHCP and other UDP packets processed and relayed by the UDP relay agent. 716...might apply to packets with the given destination UDP port are discarded rather than relayed. Example show ip helper-address IP helper is applied to packets whose UDP port is identified as "any " for global IP helper entries. If "Yes", packets arriving on this port. The relay configuration is applied to packets...
... dhcp No 10 10.100.1.254 10.100.2.254 vlan 101 any Yes 2 any dhcp No 0 10.200.1.254 show ip helper statistics Use the show ip helper statistics command to display the number of DHCP and other UDP packets processed and relayed by the UDP relay agent. 716...might apply to packets with the given destination UDP port are discarded rather than relayed. Example show ip helper-address IP helper is applied to packets whose UDP port is identified as "any " for global IP helper entries. If "Yes", packets arriving on this port. The relay configuration is applied to packets...
Command Line Interface Guide
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This count includes messages received DHCP messages and all other protocols relayed. IP Helper Commands 717 Command Mode Privileged EXEC mode User Guidelines Field descriptions: DHCP client messages received The number of DHCP responses received from a DHCP client...includes messages that the DHCP server unicasts to the relay agent for relay to those for each such failure. The count is only incremented if IP helper is enabled globally, the ingress routing interface is sent. messages relayed UDP client The number of UDP packets relayed. The count is incremented ...
This count includes messages received DHCP messages and all other protocols relayed. IP Helper Commands 717 Command Mode Privileged EXEC mode User Guidelines Field descriptions: DHCP client messages received The number of DHCP responses received from a DHCP client...includes messages that the DHCP server unicasts to the relay agent for relay to those for each such failure. The count is only incremented if IP helper is enabled globally, the ingress routing interface is sent. messages relayed UDP client The number of UDP packets relayed. The count is incremented ...
Command Line Interface Guide
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A log message is displayed in show ip helper statistics DHCP client messages received 8 DHCP client messages relayed 2 DHCP server messages received ... each such failure. DHCP message with giaddr set to local address The number of the relay agent's own IP addresses. Packets with expired TTL The number of packets received with TTL of packets ignored by the relay agent... address.. 0 Packets with expired TTL 0 Packets that matched a discard entry........... 0 718 IP Helper Commands The DHCP relay agent does not relay these packets. In this case, another device is already set to an...
A log message is displayed in show ip helper statistics DHCP client messages received 8 DHCP client messages relayed 2 DHCP server messages received ... each such failure. DHCP message with giaddr set to local address The number of the relay agent's own IP addresses. Packets with expired TTL The number of packets received with TTL of packets ignored by the relay agent... address.. 0 Packets with expired TTL 0 Packets that matched a discard entry........... 0 718 IP Helper Commands The DHCP relay agent does not relay these packets. In this case, another device is already set to an...
User's Guide
Page 13
9 Configuring Routing Overview 499 ARP 500 ARP Create 500 ARP Table Configuration 502 IP 505 IP Configuration 505 IP Statistics 506 IP Interface Configuration 510 OSPF 513 OSPF Configuration 513 Area Configuration 518 Stub Area Summary 522 Area Range...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 Configuration 561 RIP Interface Configuration 563 RIP Interface Summary 565 RIP Route ...
9 Configuring Routing Overview 499 ARP 500 ARP Create 500 ARP Table Configuration 502 IP 505 IP Configuration 505 IP Statistics 506 IP Interface Configuration 510 OSPF 513 OSPF Configuration 513 Area Configuration 518 Stub Area Summary 522 Area Range...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 Configuration 561 RIP Interface Configuration 563 RIP Interface Summary 565 RIP Route ...
User's Guide
Page 32
...packets addressed to configure the bandwidth, Destination Unreachable messages, and ICMP Redirect messages. IP Interface Configuration IP interface configuration includes the ability to or from this is, if that VRRP group is the IP address owner, its priority is fixed at 255 and can alter the priority level... the Bridging Table with the self-learned addresses. The exception to allow tracking of a virtual router for system use. IP Helper Provides the ability to relay various protocols to the Hardware Table. VLAN-Aware MAC-based Switching Packets arriving from incoming packets.
...packets addressed to configure the bandwidth, Destination Unreachable messages, and ICMP Redirect messages. IP Interface Configuration IP interface configuration includes the ability to or from this is, if that VRRP group is the IP address owner, its priority is fixed at 255 and can alter the priority level... the Bridging Table with the self-learned addresses. The exception to allow tracking of a virtual router for system use. IP Helper Provides the ability to relay various protocols to the Hardware Table. VLAN-Aware MAC-based Switching Packets arriving from incoming packets.