So for years, I've had various DSL speeds, starting at 768kb to the latest being 80mb. I've always run my dsl modem in bridging mode and let a Fedora PC server as the actual router / firewall, so therefore it always handled the ppp negotiation.
Now, in the last couple weeks, the long awaited 1000mb fiber in the street has been activated and I elected to upgrade. The install itself went painless, but when it came to the activation the tech said the same ppp negotiation would be in place.
So he installed the ONT, kept the CL Technicolor C2100T modem in place (simply removing the phone line and hooking up the ethernet to the ONT), we turn everything on and ... nothing. The Fedora ppp software would not connect. There were no changes to the ppp credentials, but it still would not connect.
/var/log/messages had a simple sequence like this:
ug 24 16:59:24 murdock network[28969]: Bringing up interface ppp0: [ OK ]
Aug 24 16:59:24 murdock pppd[29379]: pppd 2.4.7 started by root, uid 0
Aug 24 16:59:24 murdock NetworkManager[685]: [1566683964.9027] manager: (ppp0): new Generic device (/org/freedesktop/NetworkManager/Devices/64)
Aug 24 16:59:24 murdock pppd[29379]: Using interface ppp0
Aug 24 16:59:24 murdock pppd[29379]: Connect: ppp0 /dev/pts/3
Aug 24 16:59:55 murdock pppd[29379]: LCP: timeout sending Config-Requests
Aug 24 16:59:55 murdock pppd[29379]: Connection terminated.
Aug 24 16:59:55 murdock pppd[29379]: Modem hangup
Aug 24 16:59:59 murdock pppoe[29380]: Timeout waiting for PADO packets
Aug 24 16:59:59 murdock pppd[29379]: Exit.
Aug 24 16:59:59 murdock pppoe-connect[29409]: PPPoE connection lost; attempting re-connection.
However if we turn the C2100T into routing mode, it still remembered the credentials, and a few adjustments to the /etc/sysconfig/network-script ifcfg files then everything works fine with the modem handling the ppp.
Now where I really want to get to is removing the C2100T all together for several reasons:
1. If it runs in bridging mode, then the only function it would be doing is the VLAN tagging 201, which I believe I can get Linux to perform. Just another unneeded device in the chain.
2. For an unknown reason, while the WAN negotiation speed is 1000mb, the ethernet is only connecting to my Fedora machine at 100mb. Even though I have a good, server quality Intel 4-port gigabit card interface card, and everything else will train to 1000, the C2100T is only training to 100. So this is really capping my throughput (yes I understand the irony of years and years where I would have given almost anything to get the wan anywhere close to 100, now I'm complaining that its my cap).
I have tried removing it already and connecting the ONT directly, it's ethernet will train to 1000mb, but I still have the ppp issue, and probably some VLAN tagging tweaking.
I'm at a loss of what the problem could be. I haven't found good diagnostics in the ppp daemon on Fedora to spit out any meaningful error messages.
The exact same Fedora machine, the exact same DSL Modem C2100T, same credentials, same configurations. Everything worked great on 80mb DSL and now fails on 1000mb fiber.
Thoughts?
Brian
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