ZyXEL Communications ZyWall 35 Support Notes page 69

ZyWALL 35 Support Notes
address is assigned to ZyWALL's WAN interface, ZyWALL will updates the related record in DDNS
server. Therefore the peer VPN gateway can resolve ZyWALL's IP address to make a VPN tunnel.
In following example, local VPN gateway (ZyWALL) uses a dynamic WAN IP address (PPPoE with
dynamic IP assignment).
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