Hi My setup: Internet <-> CISCO VPN router (Head Office) <-> CISCO VPN router (Our branch) <-> WRT54G3G (WAN port) and Internet <-> WRT54G3G (Express Card, UMTS) I'm using WRT54G3G to connect both wireless via UMTS and via wan port with local CISCO vpn router connected with the head office. The head office supports connecting to the internet through our vpn connection (proxy). Now when the UMTS is off (no card for example) DDNS service on the router updates DynDNS site with wan ip (private ip obtained from CISCO vpn router) and not the public ip on the far end of vpn tunnel. DynDNS auto detected ip (given on the DynDNS site) is the right one. It looks like wrong DDNS support in WRT54G3G. Could someone verify this, please?