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Forum Discussion

engtmk's avatar
engtmk
Icon for Nimbostratus rankNimbostratus
Nov 11, 2007

Big IP as default Gateway

I have server that is confgiured with the big ip as its default gateway     but these server cant reach any network outside its networks     so do we have to create routes on the LTM or s...
config
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JRahm's avatar
JRahm
Icon for Admin rankAdmin
Nov 12, 2007
You also need a route in the routing table for non-locally connected subnets.

 

 

Consider F5 vlans A & B

 

vlan A hosts should have route to bigip for vlan B hosts

 

vlan B hosts should have route to bigip for vlan A hosts

 

vlan A hosts & vlan B hosts should have a route to bigip for vlan C hosts

 

 

Assuming your 0.0.0.0/0 forwarding virtual is in place, the F5 will forward packets between these vlans because they are locally connected. However, since vlan C is not local to F5, F5 also needs a route to this location in order to forward packets from vlan A and vlan B hosts to that destination