Edgerouter - eth2 for WAN - trying for seamless HFC to UFB switch

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mdf

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#270305 3-May-2020 14:19

My UFB install is scheduled for tomorrow. Currently on Vodafone HFC, cable modem to eth.0 on an Edgerouter Lite. New ISP is Voyager.

Everyone is still working/schooling from home, so I'm aiming for as little internet downtime outrage as possible. I was therefore hoping I could configure the eth.2 port on the ERL for Voyager, rather than reconfiguring eth.0. Aim is that if I stuff something up, I can just re-enable and plug eth.0 back into the cable modem while I work out what I did wrong.

Once everyone has safely been return to places of work and schooling and I have some time to work through things properly, I can then reconfigure properly.

geekiegeek

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#2475788 3-May-2020 14:27

A backup before you start and just restore if you have an issue reconfiguring would be the way I would do it personally. Configuring another WAN interface seems like more effort then its worth.

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My thoughts are my own and are in no way representative of my employer.

mdf

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#2475928 3-May-2020 17:32

I was aiming to avoid the wizards / wiping all the other settings.

Does this sound right for a new PPPOE connection?

configure
delete interfaces ethernet eth0
set interfaces ethernet eth0 vif 10
set interfaces ethernet eth0 vif 10 pppoe 0 user-id USERNAME
set interfaces ethernet eth0 vif 10 pppoe 0 password PASSWORD
commit
save

michaelmurfy

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#2475931 3-May-2020 17:39

You can run the "Load Balancing" wizard without wiping configuration. I'd just personally do this and clear it off once you're done.

mdf

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#2475932 3-May-2020 17:41

michaelmurfy:

You can run the "Load Balancing" wizard without wiping configuration. I'd just personally do this and clear it off once you're done.

Captain Ubiquity to the rescue! Thanks, will go look at that now.

chevrolux

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#2475933 3-May-2020 17:42

1. Create your VLAN interface on eth2

2. Add your PPPoE dialler to eth2.10

3. Wait for Chorus to do their thing... and confirm the new pppoe interface is up.

4. Change your outbound masquerade to go out the new PPPoE interface, and update any other inbound firewall rules. Confirm traffic is going over the new connection - just doing a "whats my IP" should be sufficient.

5. Disconnect the HFC connection.

6. Tidy up and hard-set DNS servers that may be hard-set (but hopefully you were just "obtaining automatically).

The only down time will be when you switch your masquerade rule. But all your client devices should fairly quickly re-establish connections to the point where no one should really notice (unless they were maybe on a video call).

mdf

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#2475934 3-May-2020 17:44

mdf:

michaelmurfy:

You can run the "Load Balancing" wizard without wiping configuration. I'd just personally do this and clear it off once you're done.

Captain Ubiquity to the rescue! Thanks, will go look at that now.

Hmm, actually:

Use this wizard to set up basic load balancing with two Internet connections from different Internet Service Providers. It will generate a new configuration, completely replacing the existing configuration. A reboot is required for the new configuration to take effect. [emphasis added]

mdf

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#2475937 3-May-2020 17:52

chevrolux:

1. Create your VLAN interface on eth2

2. Add your PPPoE dialler to eth2.10

3. Wait for Chorus to do their thing... and confirm the new pppoe interface is up.

4. Change your outbound masquerade to go out the new PPPoE interface, and update any other inbound firewall rules. Confirm traffic is going over the new connection - just doing a "whats my IP" should be sufficient.

5. Disconnect the HFC connection.

6. Tidy up and hard-set DNS servers that may be hard-set (but hopefully you were just "obtaining automatically).

The only down time will be when you switch your masquerade rule. But all your client devices should fairly quickly re-establish connections to the point where no one should really notice (unless they were maybe on a video call).

Legend, ta. Anything obviously wrong with this (it is like the night before xmas and need to get the (cirtual) stockings hung for the new goodies):

ethernet eth2 {
address 192.168.2.1/24
description "Local 2"
disable
duplex auto
speed auto
vif 10 {
pppoe 0 {
password ****************
user-id myname@vygr.net
}
}
}

chevrolux

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#2475952 3-May-2020 18:46

No idea sorry... dont use (or like) Edgerouters.

That's just how I would do it on a Mikrotik. But the idea is the same regardless of brand.

@michaelmurfy - can probably confirm though?

mdf

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#2476574 4-May-2020 18:56

Excellent experience with the Chorus installer today. Actually phoned to tell me he was on his way. On time. Practised social distancing and wore a mask (with a silly duck beak flap for some reason). Really neat job. I might have tried colour matching the conduct myself but each unto their own (#ocd). Kudos to @chorusnz.

I ended up just running the wizard and following the tutorial since couldn't make eth2/custom config work immediately. Got the initial install running okay but then broke it trying to get IPv6 going so had to roll back to HFC to stop the outraged screaming. Can't wait until they are back at school and have a proper go at trying to configure the UFB and all my weird VLANs and static addresses properly.

chevrolux

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#2476606 4-May-2020 20:08

Have they still not put this in to the GUI?... I used some ERL's years ago and the main thing you couldnt do was put a PPPoE dialler on a VLAN, but I thought they updated that these days. Then again, it is UBNT we are talking about haha.

It should take 30 seconds to stick a VLAN on eth2 and stick a PPPoE dialler on it. And then another 30 seconds to flick the masquerade rule over to using it... and then maybe a couple minutes to update the firewall rules.

mdf

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#2476658 4-May-2020 22:11

chevrolux: Have they still not put this in to the GUI?... I used some ERL's years ago and the main thing you couldnt do was put a PPPoE dialler on a VLAN, but I thought they updated that these days. Then again, it is UBNT we are talking about haha.

It should take 30 seconds to stick a VLAN on eth2 and stick a PPPoE dialler on it. And then another 30 seconds to flick the masquerade rule over to using it... and then maybe a couple minutes to update the firewall rules.

In fairness to Ubiquiti, there is almost certainly a large chunk of user error involved. I am in a bit over my head with Edgerouters and wouldn't have gone down this route without knowing that the geekzone safety net was there 😉. I think I reached my level of (in)competence at about the DDWRT/Tomato level. I have seriously considered going back to consumer grade plug and play stuff a couple of times. I probably would have but for a couple of features like VLANs and separate DNS servers. Kind of feels like routers are either for the network pros (they are too complicated for me), or paint by numbers for consumers (I'm too complicated for them). Maybe with a third category, being consumer grade stuff with industrial level marketing flim flam to go with 17 unnecessary antennae.