nanog mailing list archives
Re: 10,352 active botnets (was Re: register.com down sev0?
From: Jack Bates <jbates () brightok net>
Date: Thu, 26 Oct 2006 16:38:49 -0500
Matthew Crocker wrote:
Maybe the new slogan needs to be "Save the Internet! Train the chimps!"Shouldnt 'ip verify unicast source reachable-by rx' be a default setting on all interfaces? Only to be removed by trained chimps?
Only if you wish to break existing configurations during IOS upgrades. I could see ip verify unicast source reachable-by any (less breakage), but rx will kill all types of good asymmetric routing. The largest breakage I have seen caused by rx is the link IP breakage caused by the router responding out multiple interfaces. It's also a problem when customers are straddling the fence, purposefully using asymmetric routing.
It would be nicer to have router support where a packet is acceptable if it's network is acceptable in the BGP (or IGP) policy/filter (ie, network may not be there, but it is allowed) as well as the link addresses associated with the BGP (or IGP) peer.
-Jack
Current thread:
- Re: register.com down sev0?, (continued)
- Re: register.com down sev0? Jim Popovitch (Oct 28)
- Re: register.com down sev0? Donald Stahl (Oct 28)
- Re: register.com down sev0? Fergie (Oct 25)
- BCP38 thread 93,871,738,435 (was Re: register.com down sev0?) Sean Donelan (Oct 25)
- Re: register.com down sev0? Randy Bush (Oct 25)
- Re: register.com down sev0? Chris L. Morrow (Oct 26)
- Re: register.com down sev0? Randy Bush (Oct 26)
- Re: register.com down sev0? Gadi Evron (Oct 26)
- 10,352 active botnets (was Re: register.com down sev0? Valdis . Kletnieks (Oct 26)
- Re: 10,352 active botnets (was Re: register.com down sev0? Matthew Crocker (Oct 26)
- Re: 10,352 active botnets (was Re: register.com down sev0? Jack Bates (Oct 26)
- Re: register.com down sev0? Jared Mauch (Oct 26)
- Re: register.com down sev0? Daniel Senie (Oct 26)
- RE: register.com down sev0? Tony Li (Oct 26)
- different flavours of uRPF [RE: register.com down sev0?] Pekka Savola (Oct 26)
- Re: different flavours of uRPF [RE: register.com down sev0?] Tony Li (Oct 27)
- Re: different flavours of uRPF [RE: register.com down sev0?] Chris L. Morrow (Oct 27)