Date: Thu, 11 Sep 2014 11:04:45 -0700 From: Freddie Cash <fjwcash@gmail.com> To: Peter Wemm <peter@wemm.org> Cc: Steven Hartland <killing@multiplay.co.uk>, FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: Using CARP with multiple IP aliases (FBSD 10.0) Message-ID: <CAOjFWZ5VnuwdTP_r3QXV-%2BpX05iq_p63%2BnJ5dXDqkNWTja2iaQ@mail.gmail.com> In-Reply-To: <2401599.spj3ijL0cc@overcee.wemm.org> References: <CAOjFWZ5_M_d3AStmkUJKk0TgesowJH-jWsKBbvZshwQ278o8ow@mail.gmail.com> <CAOjFWZ7L619Ms=r=G7vPnA9E-5EGc-tQcgf19NbV-bxCU5TJvw@mail.gmail.com> <7925563B043E419996CD7FEE8C7DFDB6@multiplay.co.uk> <2401599.spj3ijL0cc@overcee.wemm.org>
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On Thu, Sep 11, 2014 at 10:39 AM, Peter Wemm <peter@wemm.org> wrote: > This is the method we use extensively in the freebsd.org cluster. eg: th= e > routers have public IP addresses, private RFC1918, IPv6 etc addresses, al= l > on > the same vhid for each interface. > > * One vhid presence, with multiple aliases on the same vhid. > * Configure vhid params once, aliases attached without params. > > carp state checking uses link local addresses to communicate. > > Having multiple IP's per vhid means they change master->backup state as a > group, not individually and that's what we wanted for things like router > default gateways. > =E2=80=8BExcellent. Thanks for the confirmation. =E2=80=8BI'll be testing the updated configuration tomorrow morning (set al= l vhid params in rc.conf.local, and only set vhid number in firewall scripts when adding IPs). --=20 Freddie Cash fjwcash@gmail.com
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