Re: Route flagged RTCF_REDIRECTED without ICMP redirs?

On 10/13/2011 08:50 PM, sveniu@opera.com wrote:

How can a route end up with being flagged with RTCF_REDIRECTED, and
point to the default gateway, even though it's explicitly set to
route to another node in the same subnet, in the rpdb and routing
tables? There is zero trace of icmp redirects, and all redirect
sysctls have been disabled, and the route cache flushed before every
test.

This turned out to be due to [1], where the inet peer cache kept
a redirect learned via icmp before accept_redirect and friends were
disabled, so it was propagated to the route cache. Resolved by
a reboot to clean the inet peer cache.

[1]: Commit f39925d:
<URL:https://github.com/torvalds/linux/commit/f39925dbde7788cfb96419c0f092b086aa325c0f>

best regards,
Sven Ulland