* Tunneling GRE over GUE over IPv6
@ 2026-01-20 12:30 Marek Küthe
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From: Marek Küthe @ 2026-01-20 12:30 UTC (permalink / raw)
To: netdev, linux-newbie
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Hello,
I would like to set up a GRE tunnel using GUE or FOU, but it doesn't
seem to be working:
```
root@host1:~# ip link add ip6greguetunnel type ip6gre remote fd6c:ffa:eb7a:74e2::141 local fd6c:ffa:eb7a:74e2::171 encap gue encap-dport 6661
RTNETLINK answers: Invalid argument
root@host1:~# ip link add ip6greguetunnel type ip6gre remote fd6c:ffa:eb7a:74e2::141 local fd6c:ffa:eb7a:74e2::171 encap fou encap-dport 6661
RTNETLINK answers: Invalid argument
```
Does anyone know why? What am I doing wrong? What does "Invalid
argument" mean in this context?
If this isn't the right place to ask, I would appreciate being directed
to the right place :-)
Best regards,
Marek Küthe
--
Marek Küthe
m.k@mk16.de
er/ihm he/him
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2026-01-20 12:30 Tunneling GRE over GUE over IPv6 Marek Küthe
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