topic perfect worked like a charm in Network Security

how to check a ifindex of the interface in router

arumugam006 — Fri, 21 Feb 2020 09:39:33 GMT

Dear All,

i am looking for a command which can tell me all the ifindex assigned to interface in router. i know that there is one command in catos show ifindex but i couldn't find the similar command in router.

please help.

thanks

Re: how to check a ifindex of the interface in router

jreekers — Wed, 29 Aug 2007 15:20:34 GMT

Hi.

show ifindex and show port ifindex only exists on CAT code.

For CAT 6k running IOS (native IOS), there is no command for this info. So if you want to check what snmp index is associated with what port/interface, you can do this as you would do on any router (IOS):

You need to poll ifName and ifIndex from a host machine and then correlate the two output to see what snmp index is assigned to what port. It's easiest to do from a UNIX server, but if you load any of the freeware polling software on to a PC you can also do it. Here's an example of the poll, and what to look for:

% snmpwalk -c public 172.16.100.30 ifName

IF-MIB::ifName.1 = STRING: Gi1/1

IF-MIB::ifName.2 = STRING: Gi1/2

IF-MIB::ifName.3 = STRING: Gi5/1

IF-MIB::ifName.4 = STRING: Gi5/2

IF-MIB::ifName.5 = STRING: Gi5/3

IF-MIB::ifName.6 = STRING: Gi5/4

IF-MIB::ifName.7 = STRING: Gi5/5

IF-MIB::ifName.8 = STRING: Gi5/6

IF-MIB::ifName.9 = STRING: Gi5/7

% snmpwalk -c public 172.16.100.30 ifIndex

IF-MIB::ifIndex.1 = INTEGER: 1

IF-MIB::ifIndex.2 = INTEGER: 2

IF-MIB::ifIndex.3 = INTEGER: 3

IF-MIB::ifIndex.4 = INTEGER: 4

IF-MIB::ifIndex.5 = INTEGER: 5

IF-MIB::ifIndex.6 = INTEGER: 6

IF-MIB::ifIndex.7 = INTEGER: 7

IF-MIB::ifIndex.8 = INTEGER: 8

IF-MIB::ifIndex.9 = INTEGER: 9

From the above 2 outputs, Gi5/7 is snmp index 9.

ifName is Oid .1.3.6.1.2.1.31.1.1.1.1 and ifIndex is oid .1.3.6.1.2.1.2.2.1.1

Hope this helps.

-J

Re: how to check a ifindex of the interface in router

arumugam006 — Fri, 31 Aug 2007 09:51:38 GMT

Hi,

Thanks a lot for your immediate response.

Arumugam M

how to check a ifindex of the interface in router

swapnendum — Tue, 14 Aug 2012 10:18:18 GMT

show snmp mib ifmib ifindex

Swap

CCIE # 19804

is there a similar command

axfalk — Wed, 10 Sep 2014 13:07:42 GMT

is there a similar command for n5k?

Thanks.

-Greg

Try show interface snmp

muca — Wed, 10 Sep 2014 20:38:58 GMT

Try

show interface snmp-ifindex

HTH

thanks - that worked... _

axfalk — Thu, 11 Sep 2014 01:16:14 GMT

thanks - that worked...

_ Greg

is there a similar command on

adrianioanvalean — Thu, 25 Sep 2014 07:48:34 GMT

is there a similar command on IOS XR?

Thanks,

Adrian

In IOS XR, show snmp

Don Muthukumarana — Thu, 08 Jan 2015 13:30:45 GMT

In IOS XR, show snmp interface

ifName : TenGigE0/3/0/0        ifIndex : 1581
ifName : TenGigE0/3/0/1        ifIndex : 1582
ifName : TenGigE0/3/0/2        ifIndex : 1583
ifName : TenGigE0/3/0/3        ifIndex : 1584
ifName : TenGigE0/3/1/0        ifIndex : 1579
ifName : TenGigE0/3/1/1        ifIndex : 1580
ifName : Bundle-Ether100       ifIndex : 11105
ifName : Bundle-Ether101       ifIndex : 11106

...

perfect worked like a charm

karthikeyan gopinathan — Wed, 28 Sep 2016 20:59:49 GMT

perfect worked like a charm

Re: how to check a ifindex of the interface in router

Alex Pfeil — Sat, 01 Dec 2018 13:38:35 GMT

This worked, thanks!

Re: Try show interface snmp

balzee_85 — Fri, 19 Jul 2019 02:51:25 GMT

Please let me know the cmd to check the ifIndex for SG500X-24P-K9. Switch

Thanks in advance

Re: how to check a ifindex of the interface in router

balzee_85 — Fri, 19 Jul 2019 03:09:48 GMT

how to check ifindex of the interface in SG500X-24P series Switch

Re: Try show interface snmp

Amardeep — Tue, 10 Sep 2019 13:16:30 GMT

Thanks that worked