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cassianoleallast Thursday at 3:31 PM3 repliesview on HN

IPv6 support is basic at best. The zone-based firewall is very prescriptive and limited. ACL stuff is not great. To increase the MTU of the physical interface connected to the ISP I would need to hack a systemd unit that did it on boot (I either need it at 1508 so the PPPoE interface uses 1500, or I need to MSS clamp it and have it effectively reduced to 1492). Initial configuration requires the device to be connected to the Internet.

There were a few other niggles, and in the end I just found it easier to do what I need on OpenWRT.


Replies

tarunupadayyesterday at 7:39 PM

1492 is the default frame size set by unifi on wan pppoe. You neither need to know such esoteric details nor need to set them. “It just works”

You can also modify your frame size: Unifi Devices - Gateway - Settings - MSS Clamping.

In my view , unifi gives you all the power and very good defaults at a very reasonable price. Their nearest competitors (eero on consumer side and ruckus / Aruba on business side) have less features and more price.

m-s-ylast Thursday at 3:52 PM

just genuinely curious about your MTU use case and why this is required...?

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izacuslast Thursday at 10:34 PM

The MTU thing is a bit bizarre - all connections I've seen on PPPoE in practice (fiber or DSL) used 1492 MTU to fit data into frames (and ISPs configured their routers like that too). What are you trying to hack with this unusual 1508 frame size?

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