[Olsr-users] Changing IP on the interface

[Henning Rogge]

On Fri, Jun 4, 2010 at 11:02, Mitar <(spam-protected)> wrote:
> Hi!
>
> On Fri, Jun 4, 2010 at 10:54 AM, Henning Rogge <(spam-protected)> wrote:
>> Yes. Changing the main IP does bad things to OLSRd and it never worked
>> right, so we blocked it completely some time ago.
>
> No problem. I wish that main IP is fixed. Only that additional IPs
> change through time.
>
>> Try to switch on Source-IP routes (SrcIpRoutes yes) and set a fixed IP
>> in the config file (MainIp <your main ip>) and olsrd 0.6.0 will set up
>> an additional IP on the localhost interface.
>
> I am using 0.5.6-r8 with SOURCE_IP_ROUTES set to 1. Is this enough?
I think yes... but you might want to switch to 0.6.0 (which is
0.5.6-r8 plus bugfixes, a cleaned up linux routing code and some
features).

> But adding additional IP to the localhost interface is so that Linux
> would not have problems if some other interface goes down. This does
> not enforce olsrd to use that as a main interface.
The "never change main ip" got into OLSRd a few versions ago.

> This changed in
> 0.6.0? Or this is changed with MainIp? I would not like to bump our
> version of olsrd so how can I make main IP stick with 0.5.6-r8?
The main IP will never change in 0.5.6-r8. I'm just not sure it set's
up the localhost ip with SOURCE_IP_ROUTES.

Markus added the patch to 0.5.6-r7/8 to allow us to run a second OLSR
network on the same hardware in vienna (both with their own routing
table). It was not really "supported" until 0.6.0.

Henning


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