Thanks for your reply,
currytop.
After imaging the modem with OpenWrt (Chaos Calmer) using
jsamuel's excellent instructions (
link), I went through the following:
- changed the password for SSH and web access
- set up the VDSL2 link to TalkTalk (described below)
- backed-up the settings
- as described in my previous message, I tried different settings for the eth0 interface (WAN, or LAN 1 as its label states)
To set up the VDSL2 fibre link to TalkTalk:
From the Network drop-down list I chose 'Interfaces' then from the 'Interface Overview' I clicked on the 'Edit' button for the WAN_BRIDGE network where i set up the following:
In the 'General Setup' tab:
- protocol: select DHCP Client then click on the 'Switch protocol' button (unlike other ISP's, TalkTalk does NOT use the PPoE protocol for their fibre optic service)
- no change in the 'Hostname to send when requesting DHCP' field
In the 'Advanced Settings' tab:
- all I did was to un-tick the 'Use builtin IPv6-management' box and left all other settings untouched
In the 'Physical Settings' tab:
- I created two new custom interfaces (VLAN's): ptm0.101 and eth0.101 and bridged the ptm0 and the eth0 interfaces as shown in the attached screen capture.
In the 'Firewall Settings' tab:
- I left all the settings as they were
Then I clicked on the 'Save and Apply' button.
To verify my settings I selected 'Diagnostics' from the drop-down 'Network' list and performed all three tests (also attached). To be 100% the link works I successfully pinged Google after establishing a terminal SSH session to the modem:
BusyBox v1.23.2 (2015-08-05 16:53:44 BST) built-in shell (ash)
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
CHAOS CALMER (Bleeding Edge, r46559)
-----------------------------------------------------
* 1 1/2 oz Gin Shake with a glassful
* 1/4 oz Triple Sec of broken ice and pour
* 3/4 oz Lime Juice unstrained into a goblet.
* 1 1/2 oz Orange Juice
* 1 tsp. Grenadine Syrup
-----------------------------------------------------
root@OpenWrt:~# ping www.google.com
PING www.google.com (216.58.208.132): 56 data bytes
64 bytes from 216.58.208.132: seq=0 ttl=56 time=6.039 ms
64 bytes from 216.58.208.132: seq=1 ttl=56 time=6.400 ms
64 bytes from 216.58.208.132: seq=2 ttl=56 time=5.902 ms
64 bytes from 216.58.208.132: seq=3 ttl=56 time=6.122 ms
64 bytes from 216.58.208.132: seq=4 ttl=56 time=5.926 ms
64 bytes from 216.58.208.132: seq=5 ttl=56 time=5.823 ms
64 bytes from 216.58.208.132: seq=6 ttl=56 time=6.287 ms
64 bytes from 216.58.208.132: seq=7 ttl=56 time=5.771 ms
64 bytes from 216.58.208.132: seq=8 ttl=56 time=5.756 ms
^C
--- www.google.com ping statistics ---
9 packets transmitted, 9 packets received, 0% packet loss
round-trip min/avg/max = 5.756/6.002/6.400 ms
Then I backed up all the settings ('System' -> 'Backup / Flash Firmware' -> 'Generate archive').
I didn't configure NAT or any static routes.
Any help will be greatly appreciated. Thank you!