Date: Tue, 29 May 2012 00:14:04 +1000 From: Darren Reed <darrenr@freebsd.org> To: Nikos Vassiliadis <nvass@gmx.com> Cc: freebsd-net@freebsd.org Subject: Re: Point-to-point connection between jails? Message-ID: <4FC3882C.5030105@freebsd.org> In-Reply-To: <4FC3818A.8080801@gmx.com> References: <4FC36377.1080306@freebsd.org> <4FC3818A.8080801@gmx.com>
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On 28/05/2012 11:45 PM, Nikos Vassiliadis wrote: > 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? Yes, I was after real isolation but this might work. Darren
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