Date: 28 Sep 2001 13:12:31 -0700 From: swear@blarg.net (Gary W. Swearingen) To: "Kevin Oberman" <oberman@es.net> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: 127/8 continued Message-ID: <8bpu8bjcr4.u8b@localhost.localdomain> In-Reply-To: <200109280013.f8S0DJk04764@ptavv.es.net> References: <200109280013.f8S0DJk04764@ptavv.es.net>
next in thread | previous in thread | raw e-mail | index | archive | help
"Kevin Oberman" <oberman@es.net> writes: > RFC 3021 describes a better way of addressing directly connected links > so half the space is not wasted. a /31 is used for each connection > allowing for 4 point to point connections from a /29. > > Whether FreeBSD routers can be configured to do this, I can't say, but > I suspect manual route commands would do the job. I know Juniper > routers support this capability. Based on my many experiments (but sketchy knowledge), I find that the "route" command does the job, but the "ifconfig" command has problems with it. I can't get routing to work if I configure the interface with /31 (or /32 or point-to-point, if that's relevant). I have to use /29 (maybe /30 works too - I've forgotten), and then, of course, ifconfig creates /29 routes at creation and again at "up" time. That's interesting about the RFC. I had read that true subnet network address could be used for hosts IPs but I had not heard that for the broadcast address too. I wonder what fraction of SAs could say when or why it's OK to do so. Thanks for the tip. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?8bpu8bjcr4.u8b>