Hi,The smtp/pop3 server is located in Malaysia and we have a branch office located in Shanghai, China. Users ta branch office is able to access internet without problem. The only problem is accessing the server back in Malaysia. When I was there to r...

I have a router (1720) with serial (nat outside) and isdn (nat outside) as backup. This router is to connect to internet. The router also perform NAT to translate all inside private users to internet.In normal condition, the serial is up all users ar...