Martin said:

On 05/08/2012 10:52 PM, Guido Iribarren wrote:

...

mDNS solutions like avahi translate between hostnames and ips, while batman visualization deals with MACs, and those cannot necessarily be obtained from IPs (in some cases, ARP will help, but won't work in interfaces without IPs)

maybe i'm ignoring some MAC discovery protocol?

While reading about TLV's on wikipedia[1], I came across a MAC discovery protocol[2], LLDP, which eventually lead me to OpenLLDP[3]. If this also works on 802.11, I think we have a winner :)

Happy hacking!

[1] http://en.wikipedia.org/wiki/Type-length-value [2] http://en.wikipedia.org/wiki/Link_Layer_Discovery_Protocol [3] http://openlldp.sourceforge.net/

-- Kind Regards Martin Hundebøll

...

It looks promising:

did on two different routers connected by batman 2012.1.0 with adhoc interfaces # opkg list lldpd lldpd - 0.3-3 - LLDP (Link Layer Discovery Protocol) # opkg install lldpd # /etc/init.d/lldpd ### wait a couple of minutes # lldpctl |head ------------------------------------------------------------------------------- LLDP neighbors ------------------------------------------------------------------------------- Interface: wlan0-2 ChassisID: 54:e6:fc:be:29:d1 (MAC) SysName: colmena SysDescr: Linux 3.3.2 #1 Thu May 24 17:06:23 UTC 2012 mips MgmtIP: 10.6.2.170 Caps: Bridge(E) Wlan(E)

# lldpctl |egrep "(SysName|PortID|PortDescr)"|sed -rn "s/[^:]*: *([[:graph:]]*)( (MAC))?$/\1/;p;" | sed -nr "N;N;s/\n/|/g;s/(.*)\ |(.*)|(.*)/\2 \1_\3/;p" >/etc/bat-hosts # cat /etc/bat-hosts 56:e6:fc:be:29:d4 colmena_wlan0-2 3a:3c:98:fe:55:2f colmena_bat0

### Yes, that's a repulsive 5 min sed hack. I feel sorry for your eyes.

Unfortunately, lldpd 0.3 is designed to work with just 1 neighbour on each interface. So when i started lldpd on a third node in the mesh network, didn't work as expected. Version 0.4alpha has an option to disable this behaviour and apparently show many neighbours per interface. Haven't had the time to compile and try it.

Thanks Martin!

Guido