Some protocols/routing daemons:

• http://peertech.org/WirelessMeshRoutingProtocols
• http://home.pacific.net.au/~djames.hub/mesh/routing_faq.html
• http://www.pdos.lcs.mit.edu/grid/software.html
• http://w3.antd.nist.gov/wctg/aodv_kernel/
• http://www.mobileip.org/
• http://www.aodviv.org/linux-aodv.php
• http://www.mitre.org/work/tech_transfer/mobilemesh/

These people have a product that is MIPS based and very flexible, might be more interesting for than Soekris:

• http://www.4g-systems.biz/
• http://www.meshcube.org/index_e.html

OLSR:

• http://www.4g-systems.biz/
• http://hipercom.inria.fr/olsr/
• http://www.tldp.org/HOWTO/OLSR-IPv6-HOWTO/
• http://www.ietf.org/rfc/rfc3626