[Users] How to configure a server to use multiple subnets/gateways

[Rene C.]

Thanks Jean-Marc, I don't think this is what I need though - I don't
have any bridge interfaces anywhere, and frankly don't quite see how
it fits into the server. There's only a ifcfg-eth0 file.

I had a look at this page -
http://wiki.openvz.org/Source_based_routing - am I on the right track?

I tried some of the commands but it threw an error early on so I have
a feeling I'm not.

# ip rule add from xxx.13.31.0/24 table 6
# ip route add default dev eth0 via xxx.13.31.129 table 6
RTNETLINK answers: No such process



On Sat, Aug 17, 2013 at 10:28 PM, Jean-Marc Pigeon <jmp at safe.ca> wrote:
> Bonjour Rene C,
>
> My config:
>
> ifcfg-br0
> #definition Bridge interface
> DEVICE=br0
> ONBOOT=yes
> TYPE=Bridge
> BOOTPROTO=static
> IPADDR=HOST IP number
> NETMASK=255.255.255.224  #(My HOST SUBNET MASK)
> IPV6INIT=yes
> IPV6ADDR=PP:XX:.....YY:ZZ
>
> ifcfg-br0:brgd
> DEVICE=br0:brgd
> ONBOOT=yes
> TYPE=Bridge
> BOOTPROTO=static
> IPADDR=192.0.2.1
> NETMASK=255.255.255.255
> #to avoid checking for already set IP
> ARPCHECK=no
>
> I am using Quagga(RIP) to transparently route (and displace) VPS IP among
> HOST
> such the VPS can be "somewhere" within Hardware cloud. (then VPS
> can be set with an IP unrelated to HOST).
>
> Hoping that help.
> Contact me privately if I can help.
>
> Quoting "Rene C." <openvz at dokbua.com>:
>
>> Kirill, do you know of a page where this procedure is documented?  Thanks!
>>
>> On Sat, Aug 17, 2013 at 4:54 PM, Kirill Korotaev <dev at parallels.com>
>> wrote:
>>>
>>> Rene, if I got your problem correct you need just create a routing rule
>>> in the host, so that it knew where to route your IPs.
>>>
>>> Or use bridged networking with veth interface instead.
>>>
>>> Sent from my iPhone
>>>
>>> On 17.08.2013, at 13:33, "Rene C." <openvz at dokbua.com> wrote:
>>>
>>>> I have this hardware node with IP xxx.22.181.158
>>>>
>>>> Node runs Centos 6, so does all containers.
>>>>
>>>> I already have 4 containers with IP addreses on the same submit
>>>> (xxx.22.181.*) running fine.
>>>>
>>>> Problem is, now my data center gave me 3 IP addresses in a new subnet
>>>> with a separate gateway:
>>>>
>>>> IP add  : xxx.13.31.130  -  132
>>>> subnet : 255.255.255.224
>>>> gateway : xxx.13.31.129
>>>>
>>>> The only way I can make this work is by taking one of these IP
>>>> addresses and bind to the hardware node, then I can use the remaining
>>>> IP addresses with containers - but this way I lose an IP address - the
>>>> one bound to the hardware node, which seems no longer usable for
>>>> containers.
>>>>
>>>> This is a problem both because there's a limit to how many IP's the DC
>>>> will allocate to a server, and because the IP addresses are quite
>>>> costly.
>>>>
>>>> Did I misunderstand something?
>>>>
>>>> - Rene
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at openvz.org
>>>> https://lists.openvz.org/mailman/listinfo/users
>>>
>>>
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>
> --
> A bientôt
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> SAFE Inc.                             Phone: (514) 493-4280
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