Hi
@MattR If you configure an ip address into your Meth0/0/1 interface,you can configure default route from another network into your device like in the below
SwitchA] Interface Meth0/0/1
SwitchA] ip address 10.10.1.1 24
SwitchB] ip route-static 0.0.0.0 0.0.0.0 MEth 0/0/1
or
SwitchB] ip route-static 0.0.0.0 0.0.0.0 10.10.1.2 (accept this is your peer interface ip)
But my recommendation is that prevent use Meth0/0/1 for CAPWAP tunnel establish for WLAN Management,since it's designed for Management .
Have a nice day !!