ARP/ND Operational Commands
Show Commands
Neighbor Timer Show Commands
Syntax:
show neighbor <option>
| Option | Description |
|---|---|
- |
Without any option, the commands display the information for all neighbors. |
instance <instance_name> |
Displays summary of the specified neighbor instance |
IPv4 |
Displays neighbor summary for the specified IPv4 address. |
IPv6 |
Displays neighbor summary for the specified IPv6 address. |
request <…> |
Displays information about GARP requests made. |
Example 1: Summary of neighbor
supervisor@rtbrick: op> show neighbor
Instance MAC Address Interface IP Address Dynamic Entry Time
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 192.0.2.1 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 192.0.2.5 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 192.0.2.9 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/300 192.0.2.13 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 fe80::e8c5:7aff:fe8f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 fe80::e8c5:7a00:648f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 fe80::e8c5:7a00:c88f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/300 fe80::e8c5:7a01:2c8f:565f true Fri Jun 05 12:41:10Example 2: Summary of neighbor instance
supervisor@rtbrick: op> show neighbor instance default
Instance MAC Address Interface IP Address Dynamic Entry Time
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 192.0.2.1 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 192.0.2.5 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 192.0.2.9 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/300 192.0.2.13 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 fe80::e8c5:7aff:fe8f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 fe80::e8c5:7a00:648f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 fe80::e8c5:7a00:c88f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/300 fe80::e8c5:7a01:2c8f:565f true Fri Jun 05 12:41:10Example 3: Summary of the neighbor for the specified address family
supervisor@rtbrick: op> show neighbor ipv4
Instance MAC Address Interface IP Address Dynamic Entry Time
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 192.0.2.1 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 192.0.2.5 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 192.0.2.9 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/300 192.0.2.13 true Fri Jun 05 12:42:09supervisor@rtbrick: op> show neighbor ipv6
Instance MAC Address Interface IP Address Dynamic Entry Time
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 fe80::e8c5:7aff:fe8f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 fe80::e8c5:7a00:648f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 fe80::e8c5:7a00:c88f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/300 fe80::e8c5:7a01:2c8f:565f true Fri Jun 05 12:41:10Example 4: Summary of the static IP neighbor
supervisor@rtbrick: op> show neighbor
Instance MAC Address Interface IP Address Dynamic Entry Time
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 192.0.2.1 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 192.0.2.5 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 192.0.2.9 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/300 192.0.2.13 true Fri Jun 05 12:42:09
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 fe80::e8c5:7aff:fe8f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 fe80::e8c5:7a00:648f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 fe80::e8c5:7a00:c88f:565f true Fri Jun 05 12:41:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/300 fe80::e8c5:7a01:2c8f:565f true Fri Jun 05 12:41:10Neighbor Request
This command is used to display detailed information about various ARP neighbor requests.
Syntax:
show neighbor request <option>
| Option | Description |
|---|---|
- |
Without any option, the commands display the information about all ARP requests made. |
type |
This option allows you to specify the type of neighbor request. |
arp-proxy |
Displays information about ARP proxy requests. |
arp-reply |
Shows ARP reply messages. |
arp-request |
Displays ARP request messages. |
arp-static |
Shows static ARP entries. |
garp |
Displays Gratuitous ARP (GARP) messages. |
Example 1: Summary of the request
supervisor@rtbrick: op> show neighbor request
Interface IP Address Type Entry Time
ifl-0/1/22/0 192.0.2.2 garp Fri Jun 05 12:41:06
ifl-0/1/22/100 192.0.2.6 garp Fri Jun 05 12:41:06
ifl-0/1/22/200 192.0.2.10 garp Fri Jun 05 12:41:06
ifl-0/1/22/300 192.0.2.14 garp Fri Jun 05 12:41:06
ifl-0/1/22/0 fe80::5c07:58ff:fe79:a17 garp Fri Jun 05 12:41:06
ifl-0/1/22/100 fe80::5c07:5800:6479:a17 garp Fri Jun 05 12:41:06
ifl-0/1/22/200 fe80::5c07:5800:c879:a17 garp Fri Jun 05 12:41:06
ifl-0/1/22/300 fe80::5c07:5801:2c79:a17 garp Fri Jun 05 12:41:06Example 2: Summary of the request type GARP
supervisor@rtbrick: op> show neighbor request type garp
Interface IP Address Type Entry Time
ifl-0/1/22/0 192.0.2.2 garp Fri Jun 05 12:41:06
ifl-0/1/22/100 192.0.2.6 garp Fri Jun 05 12:41:06
ifl-0/1/22/200 192.0.2.10 garp Fri Jun 05 12:41:06
ifl-0/1/22/300 192.0.2.14 garp Fri Jun 05 12:41:06
ifl-0/1/22/0 fe80::5c07:58ff:fe79:a17 garp Fri Jun 05 12:41:06
ifl-0/1/22/100 fe80::5c07:5800:6479:a17 garp Fri Jun 05 12:41:06
ifl-0/1/22/200 fe80::5c07:5800:c879:a17 garp Fri Jun 05 12:41:06
ifl-0/1/22/300 fe80::5c07:5801:2c79:a17 garp Fri Jun 05 12:41:06Neighbor History
This command is used to display information for deleted or disconnected neighbors. It allows you to retrieve information for the latest 1,000 deleted neighbor entries.
Syntax:
show neighbor history <option>
| Option | Description |
|---|---|
- |
Without any option, the command displays the history of all neighbors. |
instance |
Displays the neighbor’s history for the specified instance. |
interface |
Displays history of a specified interface. |
ipv4 |
Displays history of a specified IPv4 neighbor. |
ipv6 |
Displays history of a specified IPv6 neighbor. |
Example 1: Neighbor history
supervisor@rtbrick: op> show neighbor history
Instance MAC Address Interface IP Address Dynamic Create Time Delete Time
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 192.0.2.1 true Fri Jun 05 12:39:53 Fri Jun 05 12:40:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 fe80::e8c5:7aff:fe8f:565f true Fri Jun 05 12:38:54 Fri Jun 05 12:40:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 192.0.2.5 true Fri Jun 05 12:39:53 Fri Jun 05 12:40:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 fe80::e8c5:7a00:648f:565f true Fri Jun 05 12:38:54 Fri Jun 05 12:40:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 192.0.2.9 true Fri Jun 05 12:39:53 Fri Jun 05 12:40:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 fe80::e8c5:7a00:c88f:565f true Fri Jun 05 12:38:54 Fri Jun 05 12:40:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/300 192.0.2.13 true Fri Jun 05 12:39:53 Fri Jun 05 12:40:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/300 fe80::e8c5:7a01:2c8f:565f true Fri Jun 05 12:38:54 Fri Jun 05 12:40:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 192.0.2.1 true Fri Jun 05 12:40:41 Fri Jun 05 12:40:49
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 fe80::e8c5:7aff:fe8f:565f true Fri Jun 05 12:40:32 Fri Jun 05 12:40:49
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 fe80::e8c5:7a00:648f:565f true Fri Jun 05 12:40:32 Fri Jun 05 12:40:49
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 fe80::e8c5:7a00:c88f:565f true Fri Jun 05 12:40:32 Fri Jun 05 12:40:49
default e8:c5:7a:8f:56:5f ifl-0/1/22/300 fe80::e8c5:7a01:2c8f:565f true Fri Jun 05 12:40:32 Fri Jun 05 12:40:49
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 192.0.2.1 true Fri Jun 05 12:42:09 Fri Jun 05 12:42:17
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 fe80::e8c5:7aff:fe8f:565f true Fri Jun 05 12:41:10 Fri Jun 05 12:42:17
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 192.0.2.5 true Fri Jun 05 12:42:09 Fri Jun 05 12:42:18
default e8:c5:7a:8f:56:5f ifl-0/1/22/100 fe80::e8c5:7a00:648f:565f true Fri Jun 05 12:41:10 Fri Jun 05 12:42:18
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 192.0.2.9 true Fri Jun 05 12:42:09 Fri Jun 05 12:42:18
default e8:c5:7a:8f:56:5f ifl-0/1/22/200 fe80::e8c5:7a00:c88f:565f true Fri Jun 05 12:41:10 Fri Jun 05 12:42:18Example 2: History of a specified nieghbor interface
supervisor@rtbrick: op> show neighbor history interface ifl-0/1/22/0
Instance MAC Address Interface IP Address Dynamic Create Time Delete Time
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 192.0.2.1 true Fri Jun 05 12:39:53 Fri Jun 05 12:40:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 fe80::e8c5:7aff:fe8f:565f true Fri Jun 05 12:38:54 Fri Jun 05 12:40:10
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 192.0.2.1 true Fri Jun 05 12:40:41 Fri Jun 05 12:40:49
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 fe80::e8c5:7aff:fe8f:565f true Fri Jun 05 12:40:32 Fri Jun 05 12:40:49
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 192.0.2.1 true Fri Jun 05 12:42:09 Fri Jun 05 12:42:17
default e8:c5:7a:8f:56:5f ifl-0/1/22/0 fe80::e8c5:7aff:fe8f:565f true Fri Jun 05 12:41:10 Fri Jun 05 12:42:17