ZyXEL Communications P-202 - Manual (Page 171)

P-202H Plus v2 Support Notes
12. Select Encryption Algorithm to DES and Authentication Algorithm to
MD5, as we configured in Sonicwall.
13. Enter the key string 12345678 in the Preshared Key text box, and click
Apply.
See the screen shot:
2 Setup Cisco
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171
There are two ways to configure Cisco VPN, use commands from console or use
Cisco ConfigMaker. Cisco ConfigMaker is an easy-to-use Windows
98/Me/NT/2000 application that configures Cisco routers, switches, hubs, and
other devices. We will guide you how to setup IPSec by using Cisco ConfigMaker