default gateway, wrong interface?
2015-04-02 12:53 PM
We have 2 x FAS2240 running ONTAP 8.1. Filer1 cannot reach autosupport, while filer2 reports correctly. Networking appears functionally equivalent between the 2, except for:
admnetappmgt1> netstat -rn Routing tables Internet: Destination Gateway Flags Refs Use Interface default 10.192.51.1 UGS 4 91380 admntap1_iscsi
admnetappmgt2> netstat -rn Routing tables Internet: Destination Gateway Flags Refs Use Interface default 10.192.51.1 UGS 7 8058092 e0M
I'm guessing the assigned interface shown could be the culprit. How can I fix that (without downtime)?
2 REPLIES 2
Re: default gateway, wrong interface?
2015-04-02 10:58 PM
Data ONTAP does not provide any way to associate gateway with specific interface; I assume it takes whatever interface is the first one. So the only way to fix it seems to be
- delete default route
- unconfigure e0M
- add default route and check that it is now associated with interface you want
- configure e0M again
But keep in mind that you have no control of what happens after reboot.
The only reason to have e0M is when you need dedicated management network. Having e0M address on the same network as data network makes very little sense and only creates problems as you found.