Telenor ZyXel P2602HWT 
Some initial headaches.
I was unable to configure it to bridging mode (rather than routing). Along with software configuration it has a switch to activate either mode, whenever the switch was on "DSL WLAN" the modem failed to connect to telenor. If anybody gets bridging to work on this modem please email
me.
The alternative is to forward all ports using the NAT SUA option. All ports can be forwarded except 1845. Reason unknown but any port range that includes 1845 will not take effect.
Initially i found the modem to hang every hour from heavy traffic and/or too many entries in the NAT table (probably from torrent/gnutella connections).
The solution was to upgrade the firmware from 3.70(ASC.1) to 3.70(ASC.2) found
here.