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NoNAT8 public IP facing devices not allowing port 22 and 443

404NotFound
Member

I have a BT Business Hub installed and a 5 IP block behind the router. I have a simple Cisco router behind it and I can ping the Cisco router on it’s dedicated IP from the internet.

 

However, I cannot reach it on ssh / ssl.

 


This should be simple. What am I missing?!

2 REPLIES 2

404NotFound
Member

It seems that despite it making absolutely no sense at all, you have to put a port forward in. In my mind that configuration would apply only to the current public Ip of the router to LAN devices behind it.

fguk
Member

For what you are thinking should happen, you need to put the BT Business Hub into Modem Mode, and configure the Cisco (never heard them called simple before!) to handle the clever stuff, this way the BT Business Hub does no firewalling and you don't need to do any port forwards.