NR7101 only IPv6 connection, no DNS resolving on IPv4


I need to choose IPv4/IPv6 to get my modem to connect.

Then I see these devices:


It's a Zyxel NR7101 5G router with OpenWrt

Ping from the router is ok to any site, but from my computer I'm only able to resolve a few websites like nrk.no and google.com.
No connection to speedtest.net for example...

What did I do wrong? It's set up from a factory reset...
Maybe there are some settings in the modem?

does ping work for those sites, from the computer ?

ping google from router:

PING google.com (172.217.21.174): 56 data bytes
64 bytes from 172.217.21.174: seq=0 ttl=57 time=45.548 ms
64 bytes from 172.217.21.174: seq=1 ttl=57 time=53.435 ms
64 bytes from 172.217.21.174: seq=2 ttl=57 time=49.409 ms
64 bytes from 172.217.21.174: seq=3 ttl=57 time=45.391 ms
64 bytes from 172.217.21.174: seq=4 ttl=57 time=61.377 ms

--- google.com ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 45.391/51.032/61.377 ms

ping google from computer:

ping google.com

Pinging google.com [2a00:1450:400f:80c::200e] with 32 bytes of data:
Reply from 2a00:1450:400f:80c::200e: time=62ms
Reply from 2a00:1450:400f:80c::200e: time=49ms
Reply from 2a00:1450:400f:80c::200e: time=49ms
Reply from 2a00:1450:400f:80c::200e: time=59ms

Ping statistics for 2a00:1450:400f:80c::200e:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 49ms, Maximum = 62ms, Average = 54ms

ping speedtest.net from router

PING speedtest.net (151.101.2.219): 56 data bytes
64 bytes from 151.101.2.219: seq=0 ttl=58 time=36.740 ms
64 bytes from 151.101.2.219: seq=1 ttl=58 time=34.963 ms
64 bytes from 151.101.2.219: seq=2 ttl=58 time=60.110 ms
64 bytes from 151.101.2.219: seq=3 ttl=58 time=36.101 ms
64 bytes from 151.101.2.219: seq=4 ttl=58 time=52.083 ms

--- speedtest.net ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 34.963/43.999/60.110 ms

ping speedtest.net from computer:

Pinging speedtest.net [2a04:4e42:200::731] with 32 bytes of data:
Reply from 2a04:4e42:200::731: time=31ms
Reply from 2a04:4e42:200::731: time=44ms
Reply from 2a04:4e42:200::731: time=46ms
Reply from 2a04:4e42:200::731: time=60ms

Ping statistics for 2a04:4e42:200::731:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 31ms, Maximum = 60ms, Average = 45ms

Hmmm, that actually works, but not in Edge/Chrome
Not even 151.101.2.219 that is the IP-address of speedtest...

image

Should I try a VPN maybe?

seems your computer's only using IPv6, or a DNS only returning IPv6 IPs ?

Yes, but the same happens on any device i connect to the router.
I'm actually only connected to my NR7101 now, i get the messages from you, Teams is working by chat but not videocall.

The same happens on my phone, only ipv6 working.

So there is something with the router I guess...

looking at your screen shot, the INTERNET interface is in the wrong zone,
should be in the wan firewall zone, same with INTERNET_4.

what's the WIFI interface ?

2 Likes

There you have it!
Thank you :grin::heavy_heart_exclamation:

Its the built-in WiFi card. I use it to make a 2.4 hotspot.

Thanks again, im a noob on openwrt (but setting up the NR7101 and crashing it completely did educate me a little though)

it shouldn't be a DHCP client though ...

Ok.

Do you have a good link to an article about firewall, routing and settings on the different interfaces and network devices in OpenWRT.

To be honest i don't understand how it works yet

@frollic:

Is this correct then?

INTERNET_4 should still be in the wan zone.

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