nanog mailing list archives
Re: BCP38 Deployment
From: Joe Provo <nanog-post () rsuc gweep net>
Date: Thu, 29 Mar 2012 19:39:39 -0400
On Thu, Mar 29, 2012 at 07:31:26PM -0400, Jon Lewis wrote:
On Thu, 29 Mar 2012, Joe Provo wrote:uRFP was a trivial, 0-impact feature on the cisco VXR-based CMTS platform. Assert a simple statement in the default config (along with 'ips classless' and all your other standard config elements)uRPF: or as it's now used in ios, ip verify unicast source reachable-via rx ... I don't know what it would have to do with ip classless.
Stated to counter 'config is hard' as there junk you have to do regardless. Add it to your standard specs and be done.
uRPF stops your customers from sending forged source address packets. Since forged source address packets are rarely traced back to their actual source, I'm not sure how configuring it on your network would reduce your abuse desk workload at all.
Guess we had better informed neighbors? :-) You caught the rhetoric; the cost was that trivial. -- RSUC / GweepNet / Spunk / FnB / Usenix / SAGE / NewNOG
Current thread:
- Re: BCP38 Deployment, (continued)
- Re: BCP38 Deployment Valdis . Kletnieks (Mar 28)
- Re: BCP38 Deployment David Conrad (Mar 28)
- Re: BCP38 Deployment Leo Bicknell (Mar 28)
- Re: BCP38 Deployment goemon (Mar 28)
- Re: BCP38 Deployment Bingyang LIU (Mar 28)
- Re: BCP38 Deployment Eric Brunner-Williams (Mar 28)
- Re: BCP38 Deployment Bingyang LIU (Mar 28)
- Re: BCP38 Deployment goemon (Mar 28)
- Re: BCP38 Deployment Joe Provo (Mar 29)
- Re: BCP38 Deployment Jon Lewis (Mar 29)
- Re: BCP38 Deployment Joe Provo (Mar 29)
- Comcast Ethernet Feed Brian R. Watters (Mar 29)
- Re: Comcast Ethernet Feed Brielle Bruns (Mar 29)
- Re: Comcast Ethernet Feed Jon Lewis (Mar 29)
- Re: Comcast Ethernet Feed Brielle Bruns (Mar 29)
- Re: Comcast Ethernet Feed Brielle Bruns (Mar 29)
- Re: Comcast Ethernet Feed Brian R. Watters (Mar 29)
- Re: Comcast Ethernet Feed Brielle Bruns (Mar 29)
- Re: Comcast Ethernet Feed Brian R. Watters (Mar 29)
- Re: Comcast Ethernet Feed Ian Henderson (Mar 29)
- Re: Comcast Ethernet Feed Derek Ivey (Mar 29)