Hal> So how do we go about getting this increased in the 2.6 Hal> kernel ? Is 20 bytes sufficient ? Should this be part of our Hal> 2.6 diffs as well ? The kernel has no problem (I had MAX_ADDR_LEN increased to 32 about 2 years ago). Just use the ip tool instead of ifconfig and arp (eg "ip neigh" or "ip addr"). - R.