3Com 3CRWDR200A-75-US - OfficeConnect ADSL Wireless 108 Mbps 11g Firewall Router, User Manual

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Advanced 87
Key Exchange Method: Select IKE or Manual from the drop-down list
box. Manual is useful for troubleshooting when you have problems using
IKE key management.
Pre-Shared Key : Type your pre-shared key in this field. Enter 8 to 31
case-sensitive ASCII characters. Both routers which would build a VPN
tunnel must use the same pre-shared key.
Port Mapping Port Mapping supports multiple ports to PVC and bridging groups. Each
group will perform as an independent network. To support this feature,
you must create mapping groups with appropriate LAN and WAN
interfaces using the
Add button. The Remove button will remove the
grouping and add the ungrouped interfaces to the Default group.
Figure 59 The Port Mapping Screen
To create a new mapping group:
Enter the Group name and select interfaces from the available interface
list and add it to the grouped interface list using the arrow buttons to
create the required mapping of the ports. The group name must be
unique. A maximum 16 entries can be configured.
Click Apply to make the changes effective immediately.