PPPOE MultiWan with same upstream gateway address.

[crash]

so, I have multiple lines from the same ISP for WAN. and they all use pppoe and get assigned a random IP and gateway and most of the time there are two or more lines sharing the same upstream gateway address .(interfaces themselves have different addresses but same IPV4 Gateway)
I have setup MultiWAN according to the wiki but I was having some random timeout issues.
after looking around it seemed that multiwan with same gateway ip is not possible HOWEVER I have also found (on pfsense wiki) that pppoe is an exception to that rule.

so Is this an opnsense only issue?

or Im just doing something wrong.

[doktornotor]

You need to set up GW monitoring (dpinger) to use something else than the GW address. They don't provide MLPPP instead of this madness?

[crash]

Gateway monitoring uses different public dns IPs for their monitoring address.

However if I have all the pppoe wans up and lets say 2 share the same upstream gateway IP, if I were to put this gateway group as my LAN's gateway in firewall rules I would get intermittent internet on lan clients (websites load now and you a second later you cant load any websites (or ping anywhere) for few seconds and this cycle repeats), until I disable gateways sharing same upstream IP and things will start working again.

and no, no MLPPP here.

[doktornotor]

- You need a separate IP for monitoring for each and every WAN which (randomly) shares the same GW.
- Public DNS servers may be rate-limiting pings -- because they are not ping servers.

Other than that, good luck. 

[crash]

- You need a separate IP for monitoring for each and every WAN which (randomly) shares the same GW.
- Public DNS servers may be rate-limiting pings -- because they are not ping servers.

Other than that, good luck.

I have a different IP on each separate WAN already.
and I never had issues with using public dns severs for gateway monitoring.

[mike873]

Hey I hava a same setup as you, I'm trying to migrate from pfsense to opnsense, but stuck at the same problem, did you find a way to solve this issue ? or is it that opnsense doesn't support this kind of config ? Thanks