[OLSR-users] Same IP address for several interfaces

[Ignacio García Pérez]

Hi,

I'm using OLSRD in a unorthodox scenario:

- I have N nodes, and each one as several network interfaces (up to 12 or even more).

- Each interface may be a serial SLIP point to point, ethernet, wireless, etc.

- The exact type and number of interfaces for each node is not known in advance, so a dummy0 interface is set up at each node, and its IP address is the "master" IP of that node. Any other node will use that IP to refer to it.

Nodes are deployed and connected to as many network lines (usually SLIP over RS422) as available, in order to get a mesh as dense (and redundant) as possible.

I initially decided that each network interface should have its own unique IP address. In addition, I would not know how many interfaces each node would have, so I decided to reserve 256 network addresses for each node. As of now, the address space is distributed as follows (example for node 25):

dummy0	10.1.25.1
eth0		10.1.25.10
sl0		10.1.25.20
sl1		10.1.25.21
sl2		10.1.25.22
sl3		10.1.25.23
...

OLSRD runs on all interfaces.

I feel that this scheme is suboptimal and uses a address space too big. So, my question is: will OLSRD work if I assign the same network address to ALL interfaces in a node ?.

Thanks.

Nacho.





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