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818
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Replies

What does 'not a gateway' mean?

robert.huang
Level 1
Level 1

Hi All,

Today I issued "show ip traffic" on the 2960 Catalyst switch, and found '4554734 not a gateway' in Rcvd section. Somebody here can tell me what 'not a gateway' mean? Is that normal?

Much appreciated.

1 Accepted Solution

Accepted Solutions

Harold Ritter
Cisco Employee
Cisco Employee

Robert,

My guess is that you have configured an IP address on the 2960 for management purposes only (it is not configured as a router) but some other device on that subnet is trying to use it as it default gateway.

Regards

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

View solution in original post

3 Replies 3

John Blakley
VIP Alumni
VIP Alumni

It's normal. It means that the packet isn't routed out a gateway and stays on the local segment.

HTH,

John

*please rate if helpful*

HTH, John *** Please rate all useful posts ***

John,

This counter is incremented when the device is not configured as an ip router (no ip routing) and you receive an ip packet for a destination that is not your local IP address.

Regards

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

Harold Ritter
Cisco Employee
Cisco Employee

Robert,

My guess is that you have configured an IP address on the 2960 for management purposes only (it is not configured as a router) but some other device on that subnet is trying to use it as it default gateway.

Regards

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
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