Creating access to fiberglass internet

Installing and Using OpenWrt
1

Hi,
I'm new to Openwrt and as expected I face problems with my internet connection. I live in Germany and have a Telekom fibreglass connection. My setup is as follows:
fiberglass -> modem -> Cudy router -> LAN
If I use a different router (Fritzbox 7560) it connects without a problem. Everytime I'm switching to the Cudy router the connection is failing.

Screenshot 2025-01-15 195000
Screenshot 2025-01-15 195000494×651 65.9 KB

Is there anyone who is also using Telekom Glasfaser who can help me setting up the internet correctly?
Thanks in advance.

2

See https://openwrt.org/docs/guide-user/network/wan/isp-configurations#deutsche_glasfaser

Please do not use images for text information.

1 Like
3

OK next I'm sending the text messages differently.
I checked the link. It refers to the German Glasfaser. This is not the same as of Telekom.

4

Is the physical wan port named wan or eth0 ?

5

Beyond of what mk24 raised (and I think that is your main problem), is there a reason why you renamed the default "wan" interface name to "Internet"? Apart from upper-case (or special characters, too long names <-- max. is 15 characters, but it's being prepended by pppoe-, so that might will be a problem as well), you are introducing additional complexities (syncing with firewall rules, DHCP/ DNS settings, it's just busy-work with little gain) that aren't helpful, especially not while you are still experimenting.

My suggestions would be:

  • do a factory reset (why, because that clears out the interactions of your 'Internet' interface to your firewall and DHCP/ DNS configuration, as well as the question of wan vs eth0).
  • keep it simple, first get internet access work with the least amount of changes (certainly no interface renaming at first)
  • advice for DTAG VDSL should work, as DTAG is (sadly, PPPoE is a major performance drain on fast connections, so 'great' for ftth…) using the same backend - so take a look at those for inspiration (VDSL with external modem, not an internal modem, there some things vary a little)
  • for clarity/ brevity, it does make sense to delete the 8021q stanzas
  • as mentioned, don't use images for displaying text
  • it does make sense to paste the default /etc/config/networkfor your device here, before any changes
1 Like
6

Hi thanks for the quick reply. I will test your suggestion tomorrow - it's too late now. I'll let you know the outcome tomorrow. :slight_smile:

7

I connect the internet via the wan port.

8

Then there shouldn't be two entries there in the config with vlan. Did you manually edit the file or use Luci to configure it?

9

So I made a new setup and its working. I still needed to setup the VLAN ID to 7 and link it with the WAN port. After connecting the PPOE with WAN.7 the internet was working.
Thanks a lot for your kind support.

1 Like
10

I used Luci for the setup. I only shared the file because I was not allowed to send more than one picture to the forum as a new member. :slight_smile:

11

Yeah, that's why use text. Easier to read and work with for everyone. And you can attach a lot of it before you reach the limit. :sweat_smile:

Also congrats on getting it working.

12

Thanks for the warm words. I coudn`t have done it without your help.

13

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