12-25-2010 06:16 PM - edited 03-06-2019 02:42 PM
Hi every body.
I just want to know about the output of" show output" on cisco ios switch. Numerous google searches returned " show ip arp" , i could not find one for " show arp" .
Thanks and have a great Chrismas.
Solved! Go to Solution.
12-25-2010 07:17 PM
Hello Sara,
It displays the hardware address learned from remote and local w.r.t ip address configured at local end
Like I have configured one interface vlan with subnet 172.16.23.234/24 and I have connected one more router with IP address:172.16.23.102
so the typical output is
lab01>sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 172.16.23.234 - 0023.058c.5c40 ARPA Vlan1
Internet 172.16.23.102 0 0800.20ad.b33a ARPA Vlan1
It is same as sh ip arp .
The main difference is sh ip arp is showing only ip (internet) as a protocol while sh arp includes many options like (appletalk, internet)
Below is the link which talks about different fiedls in output
Regards
Mahesh
12-25-2010 09:18 PM
Hi Sara,
here are the outputs for both commands:
C3750-E#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.1.10 - 001b.5400.33c0 ARPA Vlan1
Internet 192.168.1.4 2 0024.2bb6.fd30 ARPA Vlan1
C3750-E#sh ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.1.10 - 001b.5400.33c0 ARPA Vlan1
Internet 192.168.1.4 2 0024.2bb6.fd30 ARPA Vlan1
C3750-E#
I don't see a difference
HTH
Reza
12-25-2010 09:56 PM
Hello Reza,
Since you are using only ip as a protocol on interface that is the reason it is showing no difference to you in both output.
If you enable appletalk or IPX then the output of sh arp will be different.
You will be able to see Appletalk in output of protocol field of sh arp
Please correct me if I am missing something
Regards
mahesh
12-25-2010 07:17 PM
Hello Sara,
It displays the hardware address learned from remote and local w.r.t ip address configured at local end
Like I have configured one interface vlan with subnet 172.16.23.234/24 and I have connected one more router with IP address:172.16.23.102
so the typical output is
lab01>sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 172.16.23.234 - 0023.058c.5c40 ARPA Vlan1
Internet 172.16.23.102 0 0800.20ad.b33a ARPA Vlan1
It is same as sh ip arp .
The main difference is sh ip arp is showing only ip (internet) as a protocol while sh arp includes many options like (appletalk, internet)
Below is the link which talks about different fiedls in output
Regards
Mahesh
12-25-2010 09:18 PM
Hi Sara,
here are the outputs for both commands:
C3750-E#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.1.10 - 001b.5400.33c0 ARPA Vlan1
Internet 192.168.1.4 2 0024.2bb6.fd30 ARPA Vlan1
C3750-E#sh ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.1.10 - 001b.5400.33c0 ARPA Vlan1
Internet 192.168.1.4 2 0024.2bb6.fd30 ARPA Vlan1
C3750-E#
I don't see a difference
HTH
Reza
12-25-2010 09:56 PM
Hello Reza,
Since you are using only ip as a protocol on interface that is the reason it is showing no difference to you in both output.
If you enable appletalk or IPX then the output of sh arp will be different.
You will be able to see Appletalk in output of protocol field of sh arp
Please correct me if I am missing something
Regards
mahesh
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