Security problem for enabling ip route cache

Discussion in 'Cisco' started by godwill, Dec 10, 2003.

  1. godwill

    godwill Guest

    Is there any security problem would arise if enable ip route cache?

    Besides security, is there any bad effect for using ip route cache?
    godwill, Dec 10, 2003
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  2. No. The route cache is an internal data structure. There is no security
    implication. Route cache just allows forwarding to happen without a time
    consuming routing table lookup, and it activates optimized forwarding code.
    Any change to the route table immediately invalidates the route cache.
    Security is not even an issue. There are only rare corner cases where it is
    desirable to shut off route-cache, and then usually due to a bug. Turning
    off route cache can cut your forwarding performance dramatically.
    Phillip Remaker, Dec 10, 2003
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