The infamous el-cheapo of the el-cheapo ADSL modems.
I can’t wait till the moment that I get a clearence for ordering a Cisco or Zyxel ADSL modem, but until then I’ll have to do it with this piece of crap.
Fortunatly, the biggest frustration ( SSH sessions timing out) has been solved.

telnet to your speedtouch-thingie and do the following:
<br /> =>nat<br /> [nat]=>config<br /> Timeout ICMP idle : 00h01m<br /> Timeout UDP idle : 00h05m<br /> Timeout TCP idle : 00h03m<br /> Timeout TCP negotiation idle : 00h02m<br /> Timeout Other idle : 00h01m<br /> IKE outside port number : Floated<br /> [nat]=>config timeout_TCP=59m<br /> [nat]=>config<br /> Timeout ICMP idle : 00h01m<br /> Timeout UDP idle : 00h05m<br /> Timeout TCP idle : 00h59m<br /> Timeout TCP negotiation idle : 00h02m<br /> Timeout Other idle : 00h01m<br /> IKE outside port number : Floated<br /> [nat]=>..<br /> => config<br /> [config]=>save<br />

I hate time-outs.