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SubjectRe: [PATCH] linux/net/ipv4/arp.c, kernel 2.0.36 (& 2.0.37-pre9)
Date
> Description: Fixes problem with external loopback, using crossed route entries.
> Version: 2.0.36 (& 2.0.37-pre9)
> Testing: Connected two NICs together, using an external cross-over cable,
> swapped route entries (to force packets out the opposite interfaces),
> and then issued pings, telnets, & ftps to both addreseses. Unplugged
> the cable to verify pings, etc. were appropriately halted.
> Request: Please CC bmoyle@redcreek.com with any comments/feedback.

The kernel knows perfectly well that its silly to send packets to yourself
via external interfaces. This patch isn't needed. The bug is your routing
table and trying to set up this configuration.

Alan


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