Mac Address Filtering Vulnerability
Technicolor Mac Address Filtering

In anticipation of receiving a Technicolor TG582n for use with my new Plusnet Fibre in a couple of weeks, can anyone tell me if it's possible to set MAC address filtering on it? I like to be able to remove an address from the list (namely my stepson's XBox) to force him off his online games when he should be going to bed/doing homework etc. Wireless MAC Authentication Limit access to the CenturyLink Broadband Modem by using the MAC address of specific wireless devices. Select the SSID (Network Name). MAC Address filtering for Technicolor / Thomson TC8305C router MAC filtering allows you to limit access to your Technicolor / Thomson TC8305C router. To enable this feature, enter into your Technicolor / Thomson TC8305C router the 12-character MAC ID of each computer that will connect to your network.

TelnetCommands for a Thomson / Technicolor Router
Tested on a TG587n V2 but may work on other Thomson routers

Important
Use the routers web interface to backup the router settings beforeplaying.
Reinstallingthe backup or in the worst case resetting to factory default andreinstalling the backup should get things back to how they were.
Use these commands at your own risk.

Enable Telnet in Vistaor Windows 7

If using Vista or Windows 7, telnetis not enabled by default but it's very easy to do and you only need dothis once.
Go to “Control Panel” > “Programs and Features” >click on “Turn windowsFeatures On and Off”> place a tick in “Telnet Client” > click ok.

Start a telnet sessionto the router.
Click on 'start' in the bottom left corner of the desk top, inthe search box (vista) or run box (windows xp) type commandthen press enter.
A black command window should pop up, in heretype telnet192.168.1.254
You will be asked for your routers username and then password,it’s the same ones used to access the routers web interface.
The first thing to do is disable the routers telnet timeout.
This prevents the telnet session unexpectedly closing.
Just enter the two commands as shown above to permanently disable thetimeout.
Telnetexample
This example displays the IP address of the DNS resolvers held in therouter.
Issue thecommand 'dns serverroute list'
Make a note of the interface shown here, it will be needed insome other commands on this page.
eg. the interface shown above isO2_ADSL2plusthis may not be the same as shown by your router.
Setthe router to use OpenDNS--R8 Firmware

Command	Comments
dnsserver route list	List all DNS resolvers set in the router. ( optional )
dnsserver route flush	Clear
dnsserver route add dns=208.67.222.222 metric=0 intf=Internet	Seenote (1) below regarding 'intf=Internet'
dnsserver route add dns=208.67.220.220 metric=0 intf=Internet	Seenote (1) below regarding 'intf=Internet'
dnsserver route list	Listall DNS resolvers set in the router. (just checking)
saveall	Makethe change permanent.

The ISP DNS settings may creep back in over time.
A metric value of 0 has been used to give these new DNS settingspriority over any ISP settings.
eg the lower the metric the higher the priority.

Telnet scriptdownload to configure the DNS setting for R8 and R10 firmware
http://npr.me.uk/dns-script.zip

Undo,return to obtaining DNS resolvers via DHCP

Command	Comments
dnsserver route flush	Clear
dnsserver route list	Listall DNS resolvers set in the router. (just checking)
saveall	Makethe change permanent.

May need to reboot or renew the ppp session to obtain the DNS settings.

Setthe router to use OpenDNS--New R10 Firmware

Command	Comments
dnsserver forward dnsset list	List all DNS resolvers set in the router. ( optional )
dnsserver forward dnsset flush	Clear
dnsserver forward dnsset add set=0 dns=208.67.222.222 metric=0intf=Internet	Seenote (1) below regarding 'intf=Internet'
dnsserver forward dnsset add set=0 dns=208.67.220.220 metric=0intf=Internet	Seenote (1) below regarding 'intf=Internet'
dnsserver forward dnsset list	Listall DNS resolvers set in the router. (just checking)
saveall	Makethe change permanent.

The ISP DNS settings may creep back in over time.
A metric value of 0 has been used to give these new DNS settingspriority over any ISP settings.
eg the lower the metric the higher the priority.

Telnetscript download to configure the DNS setting for R8 and R10 firmware
http://npr.me.uk/dns-script.zip

Undo,return to obtaining DNS resolvers via DHCP
Technicolor mac address filtering check

Command	Comments
dnsserver forward dnsset flush	Clear
dnsserver forward dnsset list	Listall DNS resolvers set in the router. (just checking)
saveall	Makethe change permanent.

May need to reboot or renew the ppp session to obtain the DNS settings.
UpdateOpenDNS using Dynamic DNS

Command	Comments
dyndnsservice list	Viewexisting settings -- It's the 'custom' section we'll be changing
dyndnsservice modify name=custom server=updates.dnsomatic.comupdateinterval=10800	Changeservice provider to dnsomatic.com updateinterval is 3 hours. (10800 seconds)
saveall	Make the change permanent.

Ensure your opendns account is set to -- enable dynamic IP update
Go to www.dnsomatic.com , sign in with your OpenDNS username / password.
While there, enable update opendns.
Go to the routers web interface Toolbox > Dynamic DNS >Configure :-
Tick 'Enabled'
Interface -- Internet -- See Note (1)
Username --Opendns username
Password --Opendns password
Service -- custom
Host --enter your opendns network label or enter the catch all -- all.dnsomatic.com
Click 'Apply'
Check the routers event log to confirm 'dyndns host has been updated'.
Disabletelnet timeout

Command	Comments
envget var=SESSIONTIMEOUT	Checkexisting setting.
envset var=SESSIONTIMEOUT value=0	Disablesession timeout.
saveall	Ma

Technicolor Mac Address Filtering