Date: Sat, 14 Feb 1998 13:52:47 +0000 From: Brian Somers <brian@Awfulhak.org> To: SysAdmin <root@uniqsite.com> Cc: Brian Somers <brian@Awfulhak.org>, questions@FreeBSD.ORG Subject: Re: Dynamic gateway Message-ID: <199802141352.NAA03426@awfulhak.org> In-Reply-To: Your message of "Thu, 12 Feb 1998 22:36:55 PST." <Pine.BSF.3.96.980212223500.3855A-100000@uniqsite.com>
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> > > On Fri, 13 Feb 1998, Brian Somers wrote: > > > > > Just put a "/0" at the end of the second arg to `set ifaddr': > > > > set ifaddr 1.2.3.4/0 5.6.7.8/0 > > ^^ > > Let me try to rephrase your answer: the /0 part applied to any address, > even if it's not 5.6.7.8 (maybe possible gateway is 9.8.7.3 or something > like that). > > Please explain. >From the man page: set ifaddr 192.244.177.38/24 192.244.177.2/20 A number followed by a slash (/) represent the number of bits significant in the IP address. The above example signifies that: o I'd like to use 192.244.177.38 as my address if it is possible, but I'll also accept any IP address between 192.244.177.0 and 192.244.177.255. o I'd like to make him use 192.244.177.2 as his own address, but I'll also permit him to use any IP address between 192.244.176.0 and 192.244.191.255. o As you may have already noticed, 192.244.177.2 is equivalent to say- ing 192.244.177.2/32. o As an exception, 0 is equivalent to 0.0.0.0/0, meaning that I have no preferred IP address and will obey the remote peer's selection. When using zero, no routing table entries will be made until a connection is established. o 192.244.177.2/0 means that I'll accept/permit any IP address but I'll try to insist that 192.244.177.2 be used first. -- Brian <brian@Awfulhak.org>, <brian@FreeBSD.org>, <brian@OpenBSD.org> <http://www.Awfulhak.org> Don't _EVER_ lose your sense of humour.... To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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