Secondary Address Lab
Linux-2 is a proprietary device that was configured by the vendor before the gateway for Site A was changed due to a new network scheme created b new management. You notice that Site B can reach all devices on Site A’s network except Linux-2. Linux-2 is only reachable from within it’s own broadcast domain.
You verify on each network device that there are not any ACL’s preventing reachability to Linux-2 from Site B. You do not have access to change the Linux-2 devices static configuration but you do know the old network schematics from looking at retired diagrams.
This is where a secondary address can come into play. You can go to the gateway interface and create a secondary address that fits Linux-2’s gateway.
int gi 0/1
ip add x.x.x.x xxx.xxx.xxx.xxx secondary
Completed router configurations can be found on the next pages.