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SubjectRe: ICMP redirect ignored
Matthias Suencksen (msuencks@techfak.uni-bielefeld.DE) wrote:

: So far, so good, but my question is: why didn't the kernel accept the
: redirect from the gateway (A). It happended with kernel 1.3.93

Because you recompiled kernel with "CONFIG_IP_FORWARD".
Routers must ignore redirects.

If you really want make "toy" router sensing redirects, define
"CONFIG_IP_DUMB_ROUTER". But remember, it is just toy.
If some host on the net really depends on correct functionality
of your router, you must disable "CONFIG_IP_DUMB_ROUTER" and
run gated.

Alexey Kuznetsov

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