13 d up · CPU 22% · RAM 44% · Storage 20% All systems operational 99.79% uptime (30 days) View status →
Guides

Ziggo: bridge mode and your own router

With Ziggo cable, the Ziggo modem stays, but you can put it in bridge mode. It then only passes the internet on to your own router, which handles the rest. First read Your own router behind your provider for the background.

What changes in bridge mode

The modem turns off wifi, DHCP, NAT and the firewall. Some of the network ports stop working too. Your own router has to take over those jobs, so make sure your router and wifi access points are ready before you switch.

Turning on bridge mode

  1. Open the Ziggo app and go to the section for internet and your modem.
  2. Turn on bridge mode. The modem then restarts.
  3. Connect your own router to LAN port 1 of the modem. If your modem has a 2.5 Gbit/s port and your router does too, you can use that.
  4. Set your router to DHCP on the WAN side and restart it.
  5. Check your address with curl https://geekstation.nl/ip.

With a Ziggo connection over fibre, bridge mode cannot be turned on. Connect your router directly then, see the general guide.

Firewall and IPv6

IPv6 also passes through to your router in bridge mode. Make sure that router blocks incoming IPv6 traffic by default, otherwise your devices are reachable from outside.

Public IPv4 or DS-Lite?

This is the biggest point with Ziggo. If you have DS-Lite (a shared IPv4 address), you cannot open ports for IPv4. First check your address with curl https://geekstation.nl/ip and compare it with the WAN address of your router. If it differs, or starts with 100.64 to 100.127, ask Ziggo whether a public IPv4 address is possible. If that does not work, use a vpn such as WireGuard or Tailscale, or work over IPv6.

Back to normal

Turn bridge mode off again in the same place in the app. Your modem then works as a router with wifi again. Ziggo settings and options can change, so also look at Ziggo’s own page about bridge mode.