Date: Wed, 14 Aug 2013 08:58:55 -0400 From: Fbsd8 <fbsd8@a1poweruser.com> To: Karl Pielorz <kpielorz_lst@tdx.co.uk> Cc: freebsd-questions@freebsd.org Subject: Re: jail.conf ignoring exec.fib? Message-ID: <520B7F0F.7020006@a1poweruser.com> In-Reply-To: <98486B2D79D00F0898B7C9E6@Mail-PC.tdx.co.uk> References: <98486B2D79D00F0898B7C9E6@Mail-PC.tdx.co.uk>
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Karl Pielorz wrote:
>
> I'm running 9.2-RC2 amd64 on a system, with a number of jails. The jails
> are setup using '/etc/jail.conf' - but the exec.fib in jail.conf seems
> to be being ignored?
>
> e.g. in /etc/jail.conf I have:
>
> "
> testjail {
> jid = 100;
> exec.fib = 1; <---- Set FIB 1
> path = /usr2/jails/testjail;
> host.hostname = testjail.somedomain.com;
> ip4.addr = 192.168.0.40;
> mount.devfs;
> }
> "
>
> But if I run up that jail and connect to it, 'netstat -r -n' shows it's
> still using fib 0 (i.e. the default gateway is set).
>
> If before running the jail, I do 'setfib 1 route add default
> 192.186.0.90' - when the jail is run up, again - netstat within it still
> shows the systems default gateway, not the gateway from fib 1?
>
> -Karl
The jail(8) man page lacks details about how to use exec.fib.
It requires either a new kernel (with "options ROUTETABLES=2" or however
many you want), or a boot-time setting with "net.fibs=2" in
/boot/loader.conf (requiring a reboot).
setfib 1 route add default 198.192.64.21
creates routing table number 1 with that IP address.
In this example exec.fib="1" would be coded.
See setfib(8) and setfib(2) for details.
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