nanog mailing list archives
Re: iBGP next hop and multi-access media
From: Jared Mauch <jared () puck Nether net>
Date: Mon, 7 Oct 2002 00:59:24 -0400
On Mon, Oct 07, 2002 at 12:15:40AM -0400, Alex Rubenstein wrote:
OK, I'll bite. I've been doing ip route statements going on 8 years now, and I can't imagine why ever -- and how it would even work -- you'd want to ip route a netblock with a next hop of a multi-access brandcast media. As in, the next hop is still truly undetermined. I guess I don't know this because I've never tried it. But, how does the router determine where to send the packets for a route statement as specified above (ip route a.b.c.d e.f.g.h f0/0) ?
A cisco router with the default (ip proxy-arp) enabled on the interface will spend all its time doing arp/proxy-arp for the hosts and it will actually work believe it or not. You'll notice massive cpu utilization. People who do this tend to not have a lot of clue or notice when their cpu is spending all its time doing this... One should always turn proxy-arp off on your interfaces both internal and customer facing so they don't make your router bear the load because they can not configure their devices logically. - Jared
So then what do you call a connected route (for an ethernet interface on a router)? If you use ethernet, at the edges of your network you HAVE to route IP blocks to the ethernet. -Ralph-- Alex Rubenstein, AR97, K2AHR, alex () nac net, latency, Al Reuben -- -- Net Access Corporation, 800-NET-ME-36, http://www.nac.net --
-- Jared Mauch | pgp key available via finger from jared () puck nether net clue++; | http://puck.nether.net/~jared/ My statements are only mine.
Current thread:
- RE: iBGP next hop and multi-access media, (continued)
- RE: iBGP next hop and multi-access media alex (Oct 07)
- RE: iBGP next hop and multi-access media Ralph Doncaster (Oct 07)
- RE: iBGP next hop and multi-access media alex (Oct 07)
- RE: iBGP next hop and multi-access media Pete Templin (Oct 07)
- Re: iBGP next hop and multi-access media Valdis . Kletnieks (Oct 07)
- Re: iBGP next hop and multi-access media David Schwartz (Oct 07)
- RE: iBGP next hop and multi-access media Stephen J. Wilcox (Oct 07)
- Re: iBGP next hop and multi-access media Christopher L. Morrow (Oct 06)
- Re: iBGP next hop and multi-access media Pete Templin (Oct 07)
- Re: iBGP next hop and multi-access media alex (Oct 07)
- Re: iBGP next hop and multi-access media Jared Mauch (Oct 06)
- Re: iBGP next hop and multi-access media Stephen J. Wilcox (Oct 07)
- Re: iBGP next hop and multi-access media Petri Helenius (Oct 11)
- Re: iBGP next hop and multi-access media alex (Oct 07)
- Re: iBGP next hop and multi-access media jlewis (Oct 07)
- Re: iBGP next hop and multi-access media Majdi S. Abbas (Oct 07)
- Re: iBGP next hop and multi-access media Ralph Doncaster (Oct 07)
- Re: iBGP next hop and multi-access media Peter E. Fry (Oct 07)
- Re: iBGP next hop and multi-access media Pete Templin (Oct 07)