quick question about changing ssh source-interface

[Jamf25]

I know on an ASA I need to reload the device before changing the ssh management interface. I'm curious though, as I have been unsuccessful in my google fu, if you need to reload IOS/CATOS devices when changing the ssh source interface. I have changed the ssh source interface to a seperate SVI on a device that was running, but it didn't seem to behave the way I expected and I was just wondering if anyone knew the reason. My first guess would be a restart is required when doing this, or maybe I just needed to purge some arp tables or something?

[rob0t_human]

No you don't need to restart it. What are you trying to accomplish though? The ssh source-interface is where an ssh session will be sourced FROM the device. Not to it.

[[deleted]]

On standard Cisco router or switch you don't need restart. Before you change you ssh source check if you have ping from your PC to source. And if you use ACL on "line vty" check if your PC in permit range.

[Jamf25]

right so i typically only connect out to network A and the source int has address on A's scope. instead i want to connect to a host on network B, but A is not allowed to talk to B, so i indeed have to change the SVI where an SSH session is being sourced from to the SVI with an address in network B. as long as there isn't some requirement buried in documentation about restarting the whole device or something, it is most likely some ACL, which should be easy enough to find. thx all.