[OLSR-users] Same IP address for several interfaces
Ignacio García Pérez
Fri Dec 3 09:01:22 CET 2004
Thanks for the suggestion. Truth I hadn't though about it, mostly -I guess- because I know next to nothing about IPv6. However, now that I think about it, it does not seem feasible. Though currently all systems in my mesh network are base on a fairly powerful linux bases PC104 module, there are signs that at some point other small IP-capable systemas may be added, based on 8 bit micros, which don't support IPv6, so we are stuck with IPv4 for a while...
> -----Original Message-----
> From: Jeromie Reeves [mailto:(spam-protected)]
> Sent: Thursday, December 02, 2004 5:50 AM
> To: Ignacio García Pérez
> Cc: OLSR-users
> Subject: Re: [OLSR-users] Same IP address for several interfaces
> This sounds like a great place for IPv6. Have you looked into what that
> would require?
> Does this network need IPv4 access in or out of it? Using a stateless
> address configuration
> you could give each router a address and have each interface's mac used
> to complete its
> full v6 address.
> Jeromie Reeves
> Ignacio García Pérez wrote:
> >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 ?.
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