Enabling ICMP Echo / Ping on WAN of DSL-3780

Hey folks,

I’ve a lovely ‘TalkTalk Special’ DSL-3780 “fibre router” in use on a Fibre line with TalkTalk’s YouView service. The router works great for the most part; it’s decently powerful, reasonably quick at forwarding packets, and can actually handle quite some packets routed through it’s SPI Firewall – though if you’re a gamer you might wanna turn the Firewall rules off.

Anyway, one of its caveats is that many services/ports come closed by factory defaults, including WAN-side ping. Responding to ping on WAN is good for monitoring the quality of your broadband connection for instance, so having it enabled is definitely useful. It is not, however, a simple procedure to get it enabled! It took me f**king HOURS to get there. Here’s what to do:

  • First, log in to the admin interface of the router. Unless you’ve changed this IP (in which case you’ll know what it is), point your web browser to
  • You should see a pretty TalkTalk customised page that gives you your connection status. To the bottom left there’s a button marked ‘Advanced’ – click it
  • You’ll be prompted to login. Unless you’ve changed the access details (again, you should know what they are), enter the username ‘admin’ with password ‘admin’
  • On the horizontal menu to the top of the page, click ‘Advanced’ again
  • Now on the vertical menu to the left, click Network Tools
  • Now choose ACL
  • Add a new rule with the settings as follows:
    ACL: Activated
    ACL Rule Index: 8
    Active: Yes
    Source IP: ~
    Application: Ping
    Interface: Both
  • Click the ‘Set’ button right at the bottom, and then you’re all done!

It’s pretty darn hidden in the UI and almost impossible to find, isn’t it? 🙂

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