2 degrees migration to new network - ex snap.net ppoe customer

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TheLorax

1 post

Wannabe Geek

#306192 3-Jul-2023 21:44

Hi guys, today 2D did a network migration and my connection dropped between 9.30 and 10.

Was advised they were having issues moving ex snap pppoe customers across and
To factory reset my router and set it up to connect via dhcp as pppoe was going away.

Have done so and spent the last 2hrs diagnosing and sorting out my wifi access points which were reliant on poe.

Is anyone else in a similar situation with the 2D migration? I have no internet and very few lights on the ONT.
I'm using an edgerouter so kind of following my nose with the config.

Tim

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1199 posts

Uber Geek

#3099397 4-Jul-2023 00:37

Ouch! I am also an ex-snap PPPoE customer with a static IP connecting with an EdgeRouter 4. So it looks like I may be in the same situation as you soon.

If you are seriously technical, then you can ssh into your EdgeRouter and use tcpdump to capture the packets on your WAN interface and then copy the capture file to a PC and use Wireshark to look at it and work out what is happening. I prefer tshark to tcpdump for that, so I do an "apt install tshark" to install it (from root). Getting apt to work requires that you have configured the repositories:

set system package repository stretch components 'main contrib non-free'

set system package repository stretch distribution stretch

set system package repository stretch password ''

set system package repository stretch url 'http://ftp.nz.debian.org/debian/'

set system package repository stretch username ''

You need to do an "apt update" after configuring the repositories. Do NOT ever do an "apt upgrade"!

To run tcpdump or tshark, after logging in via ssh or the console cable, do this:

sudo su

cd /var/log

tshark -tad -P -w eth0.pcap -i eth0

It is very important to make sure the .pcap file is stored to the /var/log directory as that is a RAMdisk directory. If you store it to most other directories, it will be writing to the flash and that will fairly soon cause the flash to fail from too many write cycles.

The -tad option on tshark gives you proper timestamps in an understandable format. The -P option tells it to output the packets to the screen as well as saving them to the .pcap file. I am presuming that eth0 is being used as your WAN port - change that to the correct port if necessary.

To get a copy of the eth0.pcap file to a PC, use the scp command from the PC to copy it via an SSH connection. On Windows, install WinSCP. Or you can set up an sshfs mount on a Linux box so you have filesystem access to the EdgeRouter. Use a root login for sshfs to avoid permissions complications. So you may need to create a proper root user password on the EdgeRouter to get that to work. Using sshfs has the extra advantage that you can set up automatic backups of the EdgeRouter config files from the Linux box.

I can not remember the proper options to make tcpdump store to a file, but the manpage will tell you on any Linux system it is installed on, and the manpage is available on the Internet also. However, tcpdump does not have the equivalent of the -P option, so it can only output to the screen or to a file, but not both at once.

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MickeyD

97 posts

Master Geek

Lifetime subscriber

#3099437 4-Jul-2023 08:46

I too am an ex-snap.net pppoe with static IP using an EdgeRouter 4. EdgeRouter setup is as per MichaelMurfy's excellent tutorial.

I knew migration day was going to come at some stage.

Connection went down at 13:41 on Friday. I was expecting to a bit of pain getting everything reconfigured. Before I'd even had a chance to look, the connection came back up at 17:35. Still connecting via pppoe, still with the same static IP.

So it looks like I'm one of the lucky 99% where it just worked. Fingers crossed @fe31nz you have the same experience.

I wondered if migration had failed and they'd reverted me back, but my account has been migrated in their new portal, and there are a few posts suggesting that the Vocus stack is dual pppoe and dhcp.

mentalinc

3167 posts

Uber Geek

Trusted

#3099456 4-Jul-2023 09:32

Delete the PPPOE interface

Change the Port forwarding interface from ppoe to eth0.10

NAT tab, change the 'masquerade for WAN' from ppoe to eth0.10

That will get you back with ipv4. I'll work on ipv6 tonight, assume just need to update config to the eth0.10 interface instead of the PPPOE one.

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MattR

224 posts

Master Geek

#3100062 5-Jul-2023 08:51

Did you get prior notice this migration was happening? I'm on SNAP-43 with a static IP.

mentalinc

3167 posts

Uber Geek

Trusted

#3100064 5-Jul-2023 08:54

Nope
Wife called internet not working

Drive home

Get message from 2degrees saying it HAS happened.
Then proceed to fix network at like 9am

Very disappointing experience, if you're going to email to say its happening, email us before it starts

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JohnFlower

51 posts

Master Geek

#3100080 5-Jul-2023 09:41

I haven't received an email from 2degrees yet either, and noticed my original pppoe config is now missing ipv6 connectivity...
So I changed it to what's currently listed here (July 2020 with dhcp config???).

vyos@vyos# show interfaces ethernet eth0
vif 10 {
address dhcp
address dhcpv6
description "2Degrees Broadband VLAN"
dhcpv6-options {
pd 0 {
interface br0 {
address 1
sla-id 0
}
length 56
}
}
mtu 1500
}

This sorta works. I get my prefix delegated to my interface and my clients get an address. But still:

flower@desktop ~ % traceroute6 google.com
traceroute to google.com (2404:6800:4006:811::200e), 30 hops max, 80 byte packets
1 default-rdns.vocus.co.nz (2404:4402:132f:8100::1) 0.203 ms !N 0.151 ms !N 0.153 ms !N

and

flower@desktop ~ % ping6 -c 3 google.com
PING google.com(syd15s16-in-x0e.1e100.net (2404:6800:4006:811::200e)) 56 data bytes
From default-rdns.vocus.co.nz (2404:4402:132f:8100::1) icmp_seq=1 Destination unreachable: No route
From default-rdns.vocus.co.nz (2404:4402:132f:8100::1) icmp_seq=2 Destination unreachable: No route
From default-rdns.vocus.co.nz (2404:4402:132f:8100::1) icmp_seq=3 Destination unreachable: No route

--- google.com ping statistics ---
3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2033ms

mentalinc:

Very disappointing experience, if you're going to email to say its happening, email us before it starts

2degrees did the same thing with cgnat. The reasoning is that the majority of customers wont be affected by the change.

michaelmurfy

meow
13182 posts

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#3100101 5-Jul-2023 10:13

Just note - 2degrees have migrated most of their customers across without anyone noticing. They're doing it in batches.

The Edgerouters I've got on 2degrees still have come up without a hitch. Personally I'd recommend using PPPoE over IPoE still so keep your configuration the same. You're unlikely to notice any real world difference between the two but with PPPoE your connection is more likely to come up again after an outage.

Michael Murphy | https://murfy.nz
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Sounddude

I fix stuff!
1927 posts

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2degrees

Lifetime subscriber

#3100115 5-Jul-2023 10:56

Hi Team

For the record, the new 2degrees network (ex Vocus network) supports both DHCP and PPPoE. There isn't a need to change to DHCP.

JohnFlower

51 posts

Master Geek

#3100140 5-Jul-2023 11:42

michaelmurfy:

Just note - 2degrees have migrated most of their customers across without anyone noticing. They're doing it in batches.

The Edgerouters I've got on 2degrees still have come up without a hitch. Personally I'd recommend using PPPoE over IPoE still so keep your configuration the same. You're unlikely to notice any real world difference between the two but with PPPoE your connection is more likely to come up again after an outage.

8 bytes... Massive difference 😃

It is how 2degrees is recommending BYO modem clients configure their modems though.

mentalinc

3167 posts

Uber Geek

Trusted

#3100156 5-Jul-2023 12:10

Might try and change back to the work PPPoE config again tonight then and see if that works.

If they are going to email you to say the change has happened and to use a different portal to login.

They should just send it before to let you know a planned outage is coming - sure it shouldn't impact yo, but if you had a really important meeting and they crate a known outage for you, you could have been better prepared.

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MattR

224 posts

Master Geek

#3100177 5-Jul-2023 13:19

JohnFlower:

8 bytes... Massive difference 😃

You're not running 1500 MTU on your PPPoE?

ConradB

23 posts

Geek

ID Verified

#3100180 5-Jul-2023 13:26

So.... I guess I have been migrated.

My Internet went down yesterday in the middle of the day (About 11am) for about half an hour. I got the distress call from the wife but by the time I got home it had just come back.

I did receive the email (seems to have been sent at the same time as the outage, about 11:10am). The new portal does show 2 days worth of traffic.

I have a Static IP and the address is the same as it has always been. However IPv6 is no longer working.

I use an EdgeRouter 4 with PPPOE, I had not made any change to the config. I'm guessing I now have to switch to DHCPv6 to get that going again. I'll give it a crack - any tips gratefully received, or any notes confirming my experience.

Another note - in the new portal the 'Port Filtering' toggle was on, but I was still able to receive traffic on filtered ports (Web server on port 80, for example), so that and the old static IP made me wonder if I was still on the old environment.

Conrad

JohnFlower

51 posts

Master Geek

#3100187 5-Jul-2023 13:35

MattR:

You're not running 1500 MTU on your PPPoE?

Yes, but 8 bytes of that are reserved for pppoe header. ipoe doesn't have this overhead.

Edit: I guess most router software hides this configuration from the user so they might not know it's even happening.

MattR

224 posts

Master Geek

#3100188 5-Jul-2023 13:40

I mean RFC 4638. I'm running 1500 MTU inside the pppoe tunnel.

michaelmurfy

meow
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#3100217 5-Jul-2023 14:05

JohnFlower: 8 bytes... Massive difference 😃

It is how 2degrees is recommending BYO modem clients configure their modems though.

2degrees also supports "baby jumbo packets" so basically a base Ethernet interface with a MTU set at 1508 and the PPPoE interface set at 1500 taking care of that :)

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