[nzlug] Telstra/linux

[Mathew Carley]

I'll assume for a moment that Telstra and Welhos cable setups are quite 
similar.

When you power on the modem, it automatically searches for a cable-data 
network. When it finds a downstream signal, it configures itself by 
grabbing a file over TFTP from the provider. While my Welho account 
gives me 5 static IP addresses (assigned by DHCP by the provider, based 
upon the MAC address), I think that Telstra probably doesn't provide 
static IP, but instead assigns dynamic IP addresses.

The modem IP address is http://192.168.100.1/, but your computer will be 
assigned an *outside* IP address directly EG, my computers eth0 IP 
address is 82.181.11.134, so its a modem-bridge, not a modem-router, as 
the case is with DSL. The only case you will get an internal address 
(192.168.x.x) is if the modem is disconnected from the cable connection.

Make sure that your eth0 or eth1 connection assigned by DHCP, as well - 
if you use 192.168.x.x IP address here, you won't make it out to the 
internet (bridge vs router). Make sure you have your firewall up!

There is no real configuration at all, except for the upstream channel 
and frequency. That said, my devices firmware could be bastardized. 
After letting your machine get an IP address by DHCP, try ping 
192.168.100.1 and see if you get anything. Hope this helps.

Mathew
>> Major I am not able to get the cable modem to work.I have copied from
>> ipconfig the details to the options in eth0 and also tried eth1 to no
>> avail.
>>     
>
> AFAIK if you are connected directly to Telstra's cable modem you have to 
> configure the interface with the IP address and other settings that Telstra 
> gave you