nanog mailing list archives
Re: Router with 2 (or more) interfaces in same network
From: sthaug () nethelp no
Date: Tue, 11 Nov 2003 18:57:26 +0100
You _used_ to be able to do this (oh, over two years ago?). The address was assigned to the interface, and the error from trying to add a duplicate route was simply ignored, no route got added anywhere. You can figure out when the change was made by examining the code or by seeing when the maillists started to get flooded by people who could no longer do, # ifconfig if0 inet 10.0.0.1 # ifconfig if0 alias 10.0.0.2 When they meant, # ifconfig if0 inet 10.0.0.1 # ifconfig if0 alias 10.0.0.2 netmask 0xffffffff
There is a difference, of course - Cisco is perfectly happy to let you do int fa0 ip addr 10.0.0.1 255.255.255.0 ip addr 10.0.0.2 255.255.255.0 secondary I never could understand why this should be impossible in FreeBSD. But I guess this discussion is no longer NANOG relevant :-) Steinar Haug, Nethelp consulting, sthaug () nethelp no
Current thread:
- Router with 2 (or more) interfaces in same network Sugar, Sylvia (Nov 11)
- Re: Router with 2 (or more) interfaces in same network Richard Cox (Nov 11)
- Re: Router with 2 (or more) interfaces in same network Leo Bicknell (Nov 11)
- Re: Router with 2 (or more) interfaces in same network Richard A Steenbergen (Nov 11)
- Re: Router with 2 (or more) interfaces in same network Leo Bicknell (Nov 11)
- Re: Router with 2 (or more) interfaces in same network Crist Clark (Nov 11)
- Re: Router with 2 (or more) interfaces in same network sthaug (Nov 11)
- Re: Router with 2 (or more) interfaces in same network Leo Bicknell (Nov 11)
- Re: Router with 2 (or more) interfaces in same network Neil J. McRae (Nov 12)
- Re: Router with 2 (or more) interfaces in same network Stephen J. Wilcox (Nov 12)
- Re: Router with 2 (or more) interfaces in same network Richard A Steenbergen (Nov 11)
- <Possible follow-ups>
- RE: Router with 2 (or more) interfaces in same network Shawn Solomon (Nov 11)
- Re: Router with 2 (or more) interfaces in same network Paul S. Brown (Nov 11)
- RE: Router with 2 (or more) interfaces in same network Lucas Iglesias (Nov 11)
- Re: Router with 2 (or more) interfaces in same network Frank Louwers (Nov 11)
- RE: Router with 2 (or more) interfaces in same network Peter John Hill (Nov 11)
- RE: Router with 2 (or more) interfaces in same network Lucas Iglesias (Nov 11)
- RE: Router with 2 (or more) interfaces in same network Truman, Michelle, RTSLS (Nov 11)