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Signed-off-by: Marek Küthe <m.k@mk16.de>
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Marek Küthe 2023-01-03 01:44:09 +01:00
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docs/tunneling/iptunnel.md
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@ -76,6 +76,15 @@ Tunnels at Layer 3 (IP level) can be problematic. For example, NATs or firewalls
Keep in mind that the more tunnel mechanisms are used, the more headers are generally used. This leads to a reduction in MTU. This means that less data can be transmitted per packet. A high MTU is therefore desirable.
If you get the following error message, you can try to load the FOU kernel module:
```
RTNETLINK answers: No such file or directory
Error talking to the kernel
```
```
modprobe fou
```
### Foo-over-UDP (FOU)
Use the following command to enable FOU for a port:
@ -100,15 +109,6 @@ If you want to stop using a port for FOU, you can use the following command:
ip fou del port <lport>
```
If you get the following error message, you can try to load the FOU kernel module:
```
RTNETLINK answers: No such file or directory
Error talking to the kernel
```
```
modprobe fou
```
### Generic UDP Encapsulation (GUE)
Use the following command to enable FOU for a port: