ZyXEL Communications P-660R-Tx v3 Series Support Notes page 39

P-660R-Tx v3 Series Support Notes
When you have finished the above settings, you can ping to the remote Win9x
client from WinNT. This ping command is used to demonstrate that remote
the Win9x can be reached across the Internet. If the Internet connection
between two LANs is achievable, you can place a VPN call from the remote
Win9x client.
For example: C:\ping 203.66.113.2
When a dial-up connection to ISP is established, a default gateway is assigned
to the router traffic through that connection. Therefore, the output below shows
the default gateway of the Win9x client after the dial-up connection has been
established.
Before making a VPN connection from the Win9x client to the NT server, you
need to know the exact Internet IP address that the ISP assigns to P-660R-Tx
v3 router in SUA mode and enter this IP address in the VPN dial-up dialog box.
You can check this Internet IP address from PNC Monitor or S Web
Configurator, Status -> Device Info. If the Internet IP address is a fixed IP
address provided by ISP in SUA mode, then you can always use this IP
address for reaching the VPN server.
In the following example, the IP address '140.113.1.225' is dynamically
assigned by ISP. You must enter this IP address in the 'VPN Server' dialog box
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