Inbound connections fail to connect after initiating OpenVPN connection

There is a cronjob on another box which is reaching out to me every minute;

$ nc -lvnp 80GET / HTTP/1.1[snipped for brevity]

I want to eventually relay the traffic over a VPN, so I've connected to it:

$ openvpn admin.conf &$ nc -lvnp 80[no traffic or output]

however then I stop getting the HTTP traffic at all and thus cannot relay it. I've attached the routing tables below for reference:

$ route -nKernel IP routing tableDestination     Gateway         Genmask         Flags Metric Ref    Use Iface0.0.0.0         10.100.11.1     0.0.0.0         UG    100    0        0 ens310.8.0.0        0.0.0.0         255.255.255.0   U     0      0        0 tun010.100.11.0     0.0.0.0         255.255.255.0   U     0      0        0 ens310.100.11.1     0.0.0.0         255.255.255.255 UH    100    0        0 ens3172.17.0.0      0.0.0.0         255.255.0.0     U     0      0        0 docker0172.18.11.0     10.8.0.1        255.255.255.0   UG    0      0        0 tun0