We are running HACMP 4.5 on AIX 5.1 We have recently been asked to move to a routed network and it means that we will have to set a default gateway. We know we can do this on non-clustered systems, but as it seems attached to an interface which may fail over, how do we manage it within HACMP ?
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Default Gateway on HACMP
- Thread starter andy61
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OK, time to 'fess up. In my ten years of Unix admins I'd never set a default gateway. I can do it on our Numa kit easily via the routetab, but to set it in AIX it looks like you have to choose an interface to apply it to. So having run smitty mktcpip and setting the gateway on en1, I get
From netstat, en1 is linked to the default gateway. So what I want to know is should there be a failure on en1 and the address fails to the standby adapter, what happens to the default gateway ?
Code:
# lsattr -El inet0
hostname test Host Name True
gateway Gateway True
route net,-hopcount,0,,0,1xx.1xx.241.201 Route True
bootup_option no Serial Optical Network Interface True
rout6 FDDI Network Interface True
authm 65536 Authentication Methods True
# netstat -r
Routing tables
Destination Gateway Flags Refs Use If PMTU Exp Groups
Route Tree for Protocol Family 2 (Internet):
default 1xx.1xx.241.201 UGc 0 0 en1 - -
127/8 loopback U 5 114 lo0 - -
1xx.1xx/16 test U 1 52 en1 - -
b01601 loopback UGHS 2 19 lo0 - -
Route Tree for Protocol Family 24 (Internet v6):
::1 ::1 UH 0 0 lo0 16896 -- Status
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