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increase default smoltcp interface limit and add to README

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Aram 🍐 2024-12-01 12:03:41 -05:00
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4
.cargo/config.toml Normal file
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@ -0,0 +1,4 @@
[env]
# Each interface needs 1 IP allocated to the WireGuard peer IP.
# "8" = 7 tunnels per protocol.
SMOLTCP_IFACE_MAX_ADDR_COUNT = "8"

8
README.md
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@ -126,6 +126,14 @@ INFO onetun::tunnel > Tunneling TCP [127.0.0.1:8081]->[192.168.4.4:8081] (via [
... would open TCP ports 8080 and 8081 locally, which forward to their respective ports on the different peers. ... would open TCP ports 8080 and 8081 locally, which forward to their respective ports on the different peers.
#### Maximum number of tunnels
`smoltcp` imposes a compile-time limit on the number of IP addresses assigned to an interface. **onetun** increases
the default value to support most use-cases. In effect, the default limit on the number of **onetun** peers
is **7 per protocol** (TCP and UDP).
Should you need more unique IP addresses to forward ports to, you can increase the limit in `.cargo/config.toml` and recompile **onetun**.
### UDP Support ### UDP Support
**onetun** supports UDP forwarding. You can add `:UDP` at the end of the port-forward configuration, or `UDP,TCP` to support **onetun** supports UDP forwarding. You can add `:UDP` at the end of the port-forward configuration, or `UDP,TCP` to support