can not static nat (port forwarding) port 554 on isr4300 router

[n.bokhar1]

hi guys

i have an isr 4331 router and i want to do static nat or port forwarding on this router but when i use this command:

ip nat inside source static tcp 10.10.10.1 554 interface gig 0/0/1 554 

i get a err which says the port 554 is being used by the system how can i forbid system of using port 554

and i can do my nat

[Flavio Miranda]

Hi @n.bokhar1

Port 554 is used by RTSP protocol. But, which is your idea by doing this PAT?

-If I helped you somehow, please, rate it as useful.-

[n.bokhar1]

i have pat but i have a server in my network which need s to work with port 554 and i want to do a port forwarding on that port

[paul driver]

Hello

Try a port-map statement?

access-list 1 permit host 10.10.10.1

ip port-map rtsp port 554 list 1

res
Paul