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....
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