[arch-general] Scripting assistance

[pete]

Hi ..

Some i would like to do with the laptop when at home but not out and
about  

When i am at home i would like the laptop to mount my NAS drive  on
boot  always connect via ETH cable  never wiFi  but out if i connect
via cable or wirless do not try to mount NAS drive , My thoughts
Would it be possible to script it so that it checks for an specific MAC
address before trying to mount the NAS  as IP address would not work
lots  of 192.168.x.x networks  out there 

Cheers   Pete .