THANK YOU. adding the network did the trick:
ryanb@ubnt# show protocols bgp bgp 65501 { neighbor 10.1.255.254 { ebgp-multihop 4 remote-as 65515 soft-reconfiguration { inbound } update-source 10.0.1.1 } network 10.0.1.0/24 { } parameters { no-fast-external-failover router-id 10.0.1.1 } timers { holdtime 180 keepalive 60 } }
Traffic now flows freely and is routed as expected!
One last question that I haven't been able to dig up - Is there a way to broadcast ALL local routes, not just the one you specify in `network`? I'll be adding subnets and VLANs, etc soon and I'd love to just have everything work like magic. I know pfSense allows you to select inet-connected as your local prefixes to broadcast, and I'm hoping you can do that here as well.
Thanks again for all your help!