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GRE tunnel keepalive

May be someone can help

me find more about GRE keepalive.

i have linux that can work with GRE tunnel. this days i need this linux

to support GRE keepavlive. i cant find any RFC or Cisco document that

have details about the keepalive packet/header format, can any one

knows where can i find more about this issue.

i know the Cisco docs about how to configure the GRE keepavlive

but in this docs no packet format is presented.

TIA

Roi

1 REPLY
Cisco Employee

Re: GRE tunnel keepalive

The GRE IP Keepalive Feature is not part of any RFC. This feature will work on the Cisco router even if you configure it while connecting to a device that doesn't explicitly support support it.

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
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Cuauhtémoc, Juárez
Ciudad de México, 06600
México
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