Wireguard AllowedIPs config option removed for first peer when adding more than one peer

[hydro-b]

When wireguard is configured with one peer, all works as expected. However, when a second peer is added the AllowedIPs config option of the first peer is removed, rendering the peer unable to send/receive traffic.

The config is correctly displayed in the LuCI GUI. Also, uci show network shows the right configuration options (including the AllowedIPs option). However, a wg showconf wireguard shows that the AllowedIPs config option of the first peer is not present.

Restarting the wireguard interface, or the whole router for that matter, does not make a difference.

OpenWrt 24.10.0 r28427-6df0e3d02a / LuCI openwrt-24.10 branch 25.014.55016~7046a1c

kmod-wireguard - 6.6.73-r1
luci-proto-wireguard - 25.037.68331~42f464c
wireguard-tools - 1.0.20210914-r4
Linux OpenWrt 6.6.73 #0 SMP Mon Feb  3 23:09:37 2025 aarch64 GNU/Linux