Netopia 2200 - Manual (Page 130)

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Link: IPSec
When you click on the IPSec link, the IPSec configuration screen appears.
Your Gateway can suppor t two mechanisms for IPSec tunnels:
• IPSec PassThrough supports Virtual Private Network (VPN) clients running on LAN-
connected computers. Normally, this feature is enabled.
You can disable it if your LAN-side VPN client includes its own NAT interoperability
option.
Uncheck the Enable IPSec Passthrough checkbox.
• SafeHarbour VPN IPSec is a keyed feature that you must purchase. ( See “Install
Keys” on page 184. ) It enables Gateway-terminated VPN suppor t.