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Re: WCCP / no return traffic on gre interface

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ons 2007-05-09 klockan 15:27 -0400 skrev Chad Harrelson:
> Wow. Thanks Henrik!  This is the command that got it going:
> echo 0 >/proc/sys/net/ipv4/conf/gre1/rp_filter
> 
> I thought for sure that I had run across documentation that told me to
> enable rp_filter.  Oh, it's working now.  Now on the WCCPv2....
> 
> When I try enabling version 2 I get the following error while sniffing
> my external interface:
> 
> 15:17:12.108896 IP 150.125.125.185 > 150.125.127.142: ICMP
> 150.125.125.185 protocol 47 port 34878 unreachable, length 84

Sounds like the local/remote endpoint of your GRE tunnel does not match
how the router encapsulates the intercepted traffic.

> (150.125.127.142 is the automatic router ID that is displayed under: sh ip wccp)


And is what you should use as router IP for WCCP (and GRE),.

Regards
Henrik

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