multihoming woes

[vertigo]

i am at a loss. i recently got a new block of IPs for a network i manage. i have about 6 of them aliased to one macosx server machine. for the first day or so, all of them responded fine. i could ssh to any of them, go to their respective apache hosts, etc.

somehow they just stopped responding. i didn't change anything, and when i look, they're all still aliased (checked with ifconfig -au). they don't even ping, except for the primary address.

any ideas?

 

[vertigo]

no firewall (65535 allow ip from any to any)
maybe the fact that the addresses are not contiguous is throwing it off? ie, they're all on the same subnet, but the first is early in the subnet, the rest are late in it. i dunno, any ideas?

 

[vertigo]

well, turns out it was a hardware problem! the splitting/routing box the lines came into went bad. makes me feel a little better