Security Incidents mailing list archives

Re: Why would the root servers be pinging me?


From: grzesjan () ONET PL (Grzegorz Janoszka)
Date: Tue, 8 Feb 2000 09:47:14 +0100


On Mon, 7 Feb 2000, Jason Blakey wrote:

11w2d: ICMP: dst (131.149.9.13) administratively prohibited unreachable sent to 193.0.14.129
11w2d: ICMP: dst (131.149.9.8) administratively prohibited unreachable sent to 198.32.64.12

It does not look like cisco routers, but it's good practice not to send
icmp unreachables and simply drop the packet.
On cisco you enter in interface configuration: no ip unreachables

--
Grzegorz Janoszka,  Optimus Pascal SA (ONET.PL) network admin



Current thread: