successfully upgraded configs from old 5520 to 5525x by stepping through the code with one exception: On boot this error appears:
Warning: 10.0.0.0-10.255.255.255 overlaps with failover interface address. The failover units may become active. Output from config line 1406, " nat (inside,DMZ1) static 10.0.0.0 no-proxy-arp route lookup"
Any guidance would be greatly appreciated.
I imagine you have upgraded from 8.2 or before to the new software levels and the automatic migration of the NAT rules is now overlapping failover interface IP address/network configurations.
Might be possible to either clean up the NAT configurations or change the address range on the Failover link if possible.
I have the same error message while upgrading from 8.3--->8.4
WARNING: 10.5.0.0-10.5.255.255 overlaps with failover interface address. The failover units may become active
*** Output from config line 1235, "nat (inside_fw1,outside)..."
Is this something that can be ignored or could have impact?
Thanks in advance!
It is always a good idea to use the failover link to a completely separate different network, looks like you are using the whole 10.0.0.0/8 for your LAN setup your failover to something like: