pppoe tmobile fibre PADO packet lost on vlan 35

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f1outsourcing
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Joined: 03 Mar 2019
Posts: 15

PostPosted: Sun Feb 19, 2023 22:13    Post subject: pppoe tmobile fibre PADO packet lost on vlan 35 Reply with quote
pppoe tmobile fibre PADO packet lost on vlan 35


I have been struggling a bit getting the fibre connection on an own router. With a packet sniffer I was able to get the mac, host-uniq, user and password.

However I was unable to get a connection. I have noticed that PADO packets of pppoe-server are not being received when on the vlan2.35. Currently I have a test setup, on the vlan2 everything is going fine. But when I start putting the pppoe-server on the vlan35 these packets are lost.

Changes to the default in regards this pppoe.
- added a tag 35 to vlan2 (setup → networking → Tagging)
- changed in the file /tmp/ppp/options.pppoe
nic-vlan2 to nic-vlan2.35

when I then run from the console
pppd nodetach debug kdebug 3 file /tmp/ppp/options.pppoe

I can see that PADI packets are send on the vlan 35, I can also see the PADI return is send on the server, but on the client/router/ddwrt it is not there.

I assume that somehow the packet is dropped somewhere? What would be the quickest fix for this? (without having to update)
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f1outsourcing
DD-WRT Novice


Joined: 03 Mar 2019
Posts: 15

PostPosted: Mon Feb 20, 2023 8:38    Post subject: Reply with quote
When typing this I realised that vlanid and tagging was separately.

So I resolved the missing this traffic by undoing everything and

basic setup -> switch config

- rename vlan2 to vlan 35
- check the box tagging below it

I have connection now, but

1. if I restart the router vnic-vlan2 is back in /tmp/ppp/options.pppoe
ho1Aetoo
DD-WRT Guru


Joined: 19 Feb 2019
Posts: 2975
Location: Germany

PostPosted: Mon Feb 20, 2023 9:02    Post subject: Reply with quote
Depends on which build you are using.
If you are using a reasonably recent build (> 49872) then the interface entry in /tmp/ppp/options.pppoe will be set automatically based on the "WAN port assignment" setting in the networking tab.


So nothing at all has to be changed manually in the file.

and that is the task of the questioner to provide such important information and not our task to ask for the dd-wrt version and the used router
f1outsourcing
DD-WRT Novice


Joined: 03 Mar 2019
Posts: 15

PostPosted: Wed Feb 22, 2023 11:36    Post subject: Reply with quote
I decided to do this upgrade

where should I put/configure the

"host-uniq"
BrainSlayer
Site Admin


Joined: 06 Jun 2006
Posts: 7492
Location: Dresden, Germany

PostPosted: Wed Feb 22, 2023 13:05    Post subject: Reply with quote
f1outsourcing wrote:
I decided to do this upgrade

where should I put/configure the

"host-uniq"


why do you need this? never had any request for it

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ho1Aetoo
DD-WRT Guru


Joined: 19 Feb 2019
Posts: 2975
Location: Germany

PostPosted: Thu Mar 02, 2023 8:43    Post subject: Reply with quote
https://svn.dd-wrt.com/changeset/51830
https://svn.dd-wrt.com/changeset/51831
https://svn.dd-wrt.com/changeset/51832

Although the OP does not answer.
BS has added the option.

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