Greg Thomas wrote: > Ok, I'm getting frustrated because I thought I understood aliases well > but I'm having trouble setting an alias with a RFC1918 address. > > [EMAIL PROTECTED]:/home/ethant# cat /etc/hostname.xl0 > inet 66.245.151.101 255.255.255.0 NONE > inet alias 192.168.3.1 255.255.255.255 NONE ... > I can't ping from this box to 192.168.3.5 on the same hub:
right. With that subnet (/32), 192.168.3.5 is as much on the same network as 1.2.3.4 or any other IP address on the 'net. Everything would have to go through the gateway. You want a /32 when your alias is on the same network as the primary IP. On the other hand...not sure what you are trying to do there, and not sure how/if it would work. I'm very possibly missing something, but I think you have a general design problem, bigger than a subnet mask. Nick.

