nanog mailing list archives
Re: Alternic takes over Internic traffic
From: Lyndon Levesley <lol () xara net>
Date: Wed, 16 Jul 1997 12:07:55 +0100
On Tue, 15 Jul 1997 at around 17:17:58, "DH" == Dorn Hetzel penned:
DH> Since we run OSPF internally, we find it easier to do this by DH> setting up a 2501 (dedicated to the task) with static routes DH> pointing into a loopback interface which is filtered with an DH> access list to block all packets. The static routes are DH> redistributed into OSPF, which caused each static to suck DH> packets bound from anywhere in our network into the filter, DH> kill them, and log them. Of course, there is no risk of the DH> OSPF leaking to the outside world, though it covers our network DH> nicely, and we get logging of attempted replies to these DH> sites. Since OSPF is nicely classless, we block anythink from DH> a /32 up... If you have a smaller network and still want the ability to do this (e.g. singly-homed site) just route the networks concerned to nowhere on your gateway router ip route a.b.c.d w.x.y.z Null0 route add net a.b.c.d <local or null IP address> 1 This won't stop the DNS hack from polluting your servers (u/g the software :) but I don't think my Linux box needs to contact DNS pirates ;-} DH> -Dorn Hetzel DH> Epoch Internet Cheers, Lyndon -- Penis Envy is a total Phallusy.
Current thread:
- Alternic takes over Internic traffic Hank Nussbacher (Jul 15)
- Re: Alternic takes over Internic traffic Alex.Bligh (Jul 15)
- Re: Alternic takes over Internic traffic Paul A Vixie (Jul 15)
- Re: Alternic takes over Internic traffic Dorn Hetzel (Jul 15)
- Re: Alternic takes over Internic traffic Karl Denninger (Jul 15)
- Re: Alternic takes over Internic traffic Lyndon Levesley (Jul 16)
- Re: Alternic takes over Internic traffic Paul A Vixie (Jul 16)
- Re: Alternic takes over Internic traffic Alex.Bligh (Jul 15)
- Re: Alternic takes over Internic traffic Paul A Vixie (Jul 15)
