Date: Mon, 28 May 2012 15:45:46 +0200 From: Nikos Vassiliadis <nvass@gmx.com> To: darrenr@freebsd.org Cc: freebsd-net@freebsd.org Subject: Re: Point-to-point connection between jails? Message-ID: <4FC3818A.8080801@gmx.com> In-Reply-To: <4FC36377.1080306@freebsd.org> References: <4FC36377.1080306@freebsd.org>
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On 5/28/2012 1:37 PM, Darren Reed wrote:
> I've looked through the list of network interfaces that are
> supported with FreeBSD and none seem to meet my needs. What
> I want is a network interface that I can configure up in
> jail A with address 10.1.1.1 and for which I can configure
> a mate in jail B with the address 10.2.2.2 and use the
> network interface as the means by which two jails can
> directly communicate with each other without the need to
> send any packets out of the machine. Or another way to do
> this would be to have a virtual network (something like the
> "internal network" that VirtualBox has or the host only
> network supported by VMWware Workstation) defined somewhere
> and for there to be a specific driver that could be
> configured and attached to a jail and that virtual network
> so that you could have N:M communication between jails.
>
> Is what I'm looking for already present and google is failing
> me or is the above functionality the basis for future work,
> be it planned or otherwise?
It seems like a loopback interface does this.
root@raidmadi:/home/nik # jls
JID IP Address Hostname Path
3 10.2.3.4 /
4 10.7.3.4 /
root@raidmadi:/home/nik # ifconfig lo1
lo1: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=3<RXCSUM,TXCSUM>
inet 10.2.3.4 netmask 0xff000000
inet 10.7.3.4 netmask 0xff000000
root@raidmadi:/home/nik #
Maybe you want 'real' isolation? like with epair and VIMAGE?
Did I misunderstand your question?
Nikos
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