Date: Fri, 24 Aug 2007 14:11:58 +0100 From: Tom Judge <tom@tomjudge.com> To: Buki <dev@null.cz> Cc: freebsd-isp@freebsd.org Subject: Re: Loosing alias IPs Message-ID: <46CED91E.2060602@tomjudge.com> In-Reply-To: <20070824124826.GZ378@dev.null.cz> References: <1571172802.401187519463481.JavaMail.root@leda.georgiadis.eu> <alpine.BSF.0.999.0708201032440.15008@qbhto.arg> <20070824124826.GZ378@dev.null.cz>
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Buki wrote: > On Mon, Aug 20, 2007 at 10:34:49AM -0700, Doug Barton wrote: >> FYI, this isn't really a question for -isp, freebsd-questions@freebsd.org >> would have been a better choice. >> >> On Sun, 19 Aug 2007, Pavlos Georgiadis wrote: >> >>> Hello, >>> >>> I have a FreeBSD 6.2 server that get's his IP address from DHCP >>> (although this IP is static). I have also configured 3 more alias IP >>> addresses. >>> >>> My problem is that anytime the DHCP lease is renewed (with the same IP >>> address always), one of the 3 aliases is lost. >>> >>> Is this a bug? Or am I doing something wrong? >>> >>> My setup is as follows: >>> >>> the IP address that the server gets by DHCP is X.X.139.45 >>> >>> rc.conf >>> ifconfig_em0="DHCP" >>> ifconfig_em0_alias0="inet X.X.141.113 netmask 0xfffff000" >>> ifconfig_em0_alias1="inet X.X.142.124 netmask 0xfffff000" >>> ifconfig_em0_alias2="inet X.X.142.128 netmask 0xfffff000" >> You probably want to do this either in dhclient.conf or in a >> dhclient-exit-hooks script. Check the man pages to get an idea of how to >> go about this, and ask on -questions if you need more help. > > Also, aliased Ip addresses must be configured with netmask /32 > This is only true if the IP aliases are in the same network as the first IP address. The following would be a valid configuration: ifconfig_em0="inet 192.168.0.1/24" ifconfig_em0_alias0="inet 192.168.0.2/32" ifconfig_em0_alias1="inet 192.168.1.1/24" ifconfig_em0_alias2="inet 192.168.1.2/32" Tom >> Good luck, >> >> Doug >> >> -- >> >> This .signature sanitized for your protection > > Buki
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