Can't connect ssh in TPG nbn

[chrisltg01]

@david64 , sorry, just moving house, I will test it based onto your suggestion in the next a few days. Thanks. 

[chrisltg01]

@david64 , I am not sure if it is due to one setting NAT Forwarding >>  Virtual Servers I added (it only configed the part forwarding for one pair of  exteral port to internal port), after that,  port forwarding for other port also works.

Now my ssh command works.

Thanks @david64 .