Using OpenDNS with the O2-supplied Router
One thing that O2 didn’t put into the web interface for the Thomson TG585 wireless routers they supply you with, is a way to change DNS servers. It’s therefore a bit of a pain if you want to use OpenDNS. Luckily it’s not that hard to make the changes via a telnet connection:
telnet 192.168.1.254 Login name: SuperUser Password: O2Br0ad64nd
Now make a note of your existing DNS setup using this command:
dns server route list
It’ll give you something like this;
DNS Server Entries: DNS Server Source Label Metric Intf State Domain D 87.194.0.53 10 O2_ADSL UP * D 87.194.0.52 10 O2_ADSL UP *
The ‘Intf’ column is the type of connection you have (yours might differ from mine).. you’ll need this for the next commands;
dns server route flush dns server route add dns=208.67.222.222 metric=0 intf=O2_ADSL dns server route add dns=208.67.220.220 metric=0 intf=O2_ADSL dns server route list saveall
That’s it. Release and renew your IP address on all connected equipment and you’re all set.

Worked perfectly, only thing i had to set the intf to O2_ADSL2plus.
Thank you!
lococrazy
November 5, 2008 at 4:28 am
From where did you get the following information:
Login name: SuperUser
Password: O2Br0ad64nd
Since I was provided with the same modem but from other internet company in a different company and those 2 things are not working together.
I have the user and the Advanceduser that I am aware off.
On the sticker there thing such as Modem access code, MBC, Bulk. From were to get the password to access change the dns server.
Login not allowed (User ‘advanceduser’ is disallowed to login from lan to telnet
trumbun
November 19, 2008 at 9:10 pm
@trumbun; there was a post on some forum or blog that contained it.
Matt
November 20, 2008 at 9:28 am
Did this a while ago but never restored it after O2 tech support talked me through a factory reset for other issues. Finally got around to setting it back to OpenDNS again today – O2 DNS servers are still flaky.
Nick B.
May 31, 2009 at 10:11 pm
Just a quick tip if you are trying to log in via Tel net make sure you do not have extended security enabled on the router as this will prevent you from logging in :)
natureneil
February 25, 2010 at 6:20 pm