[44net] IPIP mesh with VyOS on Vultr

I am attempting to get connected from VyOS, and I seem to have several pieces in place, but I am not able to ping any hosts across any IPIP tunnels. I can ping amprgw.ucsd.edu across the public Internet. I have configured a `tun44` interface. I have ampr-ripd running, and it receives updates every five minutes. The resulting routes appear in my routing table, and if I do `ip route get` on 44-net hosts, it shows them routing through my `tun44` interface. But if I try to ping 44-net hosts or access them at all, I get timeouts. What might I be missing? My gateway public IP is 155.138.247.113. My allocated subnet is 44.31.64.1/27. I created a firewall group named ALLOW-ALL with a default rule set to 'accept' just to rule that out for troubleshooting. Tunnel interface configuration: tunnel tun44 { ampr-ripd startup output: root@vyos:/home/vyos# ampr-ripd -svd -i tun44 Broadcasts eventually start appearing. Before I run ampr-ripd, here's the route I get for 44.0.0.1 — over the public Internet: 44.0.0.1 via 155.138.246.1 dev eth0 src 155.138.247.113 uid 0 And I can ping 44.0.0.1 in this state. After I run ampr-ripd, here's the route to 44.0.0.1 — over the tunnel: 44.0.0.1 via 169.228.34.84 dev tun44 src 44.31.64.1 uid 1003 And I can no longer ping 44.0.0.1 — it just times out: vyos@vyos:~$ ping 44.0.0.1 interface tun44 This is all on VyOS 1.3 equuleus (Debian buster), hosted at Vultr. Any ideas, or other troubleshooting suggestions? Thanks very much!