RHEL 7 hosts never expire ICMP Redirect route cache entries

Solution Verified - Updated -


  • RHEL 7 hosts which have received an ICMP Redirect never expire the entry from their route cache.

    # ip route show cache | wc -l
    # cat /proc/net/rt_cache | wc -l
    # ip route get via dev eth1  src 
        cache <redirected> 


  • Red Hat Enterprise Linux 7

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