[Xorp-hackers] Error for XORP-OLSR when nodes are in different subnetwork

[Jiangxin Hu]

The scenraio only for wireless mesh network. In wired network, nodes in
different sub networks cannot talk directly. So OSPF should not work/apply
for this scenraio.

Olsrd (an OLSR implementation) works for the scenario without XORP.

Thanks,
Jiang

-----Original Message-----
From: Ben Greear [mailto:greearb at candelatech.com] 
Sent: Friday, February 24, 2012 4:16 PM
To: Jiangxin Hu
Cc: xorp-hackers at icir.org
Subject: Re: [Xorp-hackers] Error for XORP-OLSR when nodes are in different
subnetwork

On 02/24/2012 01:01 PM, Jiangxin Hu wrote:
> Recently I tested Xorp-OLSR for the scenario which nodes are belong to 
> different sub network. I got following errors in XORP log and routes are
not inserted into kernel table.
> The scenario is very simple. There are two nodes, one address is
10.0.0.2/24 and another address is 10.0.2.3/24.
> [ 2012/02/24 15:39:53.283729 ERROR xorp_rib:36 RIB rib/rib.cc:870 
> add_route ] Attempting to add IGP route to table "olsr" (prefix 
> 10.0.2.3/32 next-hop
> 10.0.2.3): no directly connected interface toward the next-hop router 
> [ 2012/02/24 15:39:53.284476 WARNING xorp_rib XrlRibTarget ] Handling 
> method for rib/0.1/add_route4 failed: XrlCmdError 102 Command failed 
> Could not add IPv4 route net 10.0.2.3/32, nexthop: 10.0.2.3 to unicast 
> RIB [ 2012/02/24 15:39:53.285360 ERROR xorp_olsr4:38 OLSR 
> contrib/olsr/xrl_queue.cc:236 route_command_done ] callback: add_route:
ribname rib net 10.0.2.3/32 nexthop 10.0.2.3 102 Command failed Could not
add IPv4 route net 10.0.2.3/32, nexthop: 10.0.2.3 to unicast RIB Is it a
configuration error or it is a implementation limitation?

Does this work with another routing protocol like OSPF?

OLSR is not that well tested and I know it has at least some bugs in more
complex network topologies.

Thanks,
Ben

> Thanks,
> Jiang
>
>
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--
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com