webmesh: err: sendto: destination address required

I’m following the https://webmeshproj.github.io/guides/personal-vpn/ guide. I’m able to connect and some ping works, but I get this on the server side:

{"time":"2023-08-07T02:02:13.95968374-04:00","level":"INFO","msg":"starting webmesh node","version":"unknown","commit":"unknown","buildDate":"unknown"}
{"time":"2023-08-07T02:02:13.976051984-04:00","level":"INFO","msg":"using CN as node ID","component":"mesh","node-id":"server"}
{"time":"2023-08-07T02:02:13.976094557-04:00","level":"INFO","msg":"loading plugin","name":"mtls"}
{"time":"2023-08-07T02:02:14.010115941-04:00","level":"INFO","msg":"All 0 tables opened in 0s","component":"raft","storage":"/var/lib/webmesh/store","component":"raftbadger"}
{"time":"2023-08-07T02:02:14.017333494-04:00","level":"INFO","msg":"Discard stats nextEmptySlot: 0","component":"raft","storage":"/var/lib/webmesh/store","component":"raftbadger"}
{"time":"2023-08-07T02:02:14.017356434-04:00","level":"INFO","msg":"Set nextTxnTs to 0","component":"raft","storage":"/var/lib/webmesh/store","component":"raftbadger"}
{"time":"2023-08-07T02:02:14.076359285-04:00","level":"INFO","msg":"All 0 tables opened in 0s","component":"badger"}
{"time":"2023-08-07T02:02:14.090821071-04:00","level":"INFO","msg":"Discard stats nextEmptySlot: 0","component":"badger"}
{"time":"2023-08-07T02:02:14.090842809-04:00","level":"INFO","msg":"Set nextTxnTs to 0","component":"badger"}
{"time":"2023-08-07T02:02:14.091883921-04:00","level":"INFO","msg":"starting raft instance","component":"raft","storage":"/var/lib/webmesh/store","listen-addr":"[::]:9443"}
{"time":"2023-08-07T02:02:14.091997004-04:00","level":"INFO","msg":"initial configuration","component":"raft","index":0,"servers":["%+v",null]}
{"time":"2023-08-07T02:02:14.092069274-04:00","level":"INFO","msg":"bootstrapping cluster","component":"mesh","node-id":"server"}
{"time":"2023-08-07T02:02:14.092073906-04:00","level":"INFO","msg":"entering follower state","component":"raft","follower":{},"leader-address":"","leader-id":""}
{"time":"2023-08-07T02:02:18.538521544-04:00","level":"WARN","msg":"heartbeat timeout reached, starting election","component":"raft","last-leader-addr":"","last-leader-id":""}
{"time":"2023-08-07T02:02:18.53858546-04:00","level":"INFO","msg":"entering candidate state","component":"raft","node":{},"term":2}
{"time":"2023-08-07T02:02:18.538669733-04:00","level":"INFO","msg":"election won","component":"raft","term":2,"tally":1}
{"time":"2023-08-07T02:02:18.538681113-04:00","level":"INFO","msg":"entering leader state","component":"raft","leader":{}}
{"time":"2023-08-07T02:02:18.597710471-04:00","level":"INFO","msg":"newly bootstrapped cluster, setting IPv4/IPv6 networks","component":"mesh","node-id":"server","ipv4-network":"172.16.0.0/12","ipv6-network":"fda1:420:b42e::/48"}
{"time":"2023-08-07T02:02:18.598660537-04:00","level":"INFO","msg":"registering ourselves as a node in the cluster","component":"mesh","node-id":"server","server-id":"server"}
{"time":"2023-08-07T02:02:18.598683097-04:00","level":"INFO","msg":"generating wireguard key for ourselves","component":"mesh","node-id":"server"}
{"time":"2023-08-07T02:02:18.598689159-04:00","level":"INFO","msg":"generating new wireguard key","component":"mesh","node-id":"server"}
{"time":"2023-08-07T02:02:18.598998931-04:00","level":"INFO","msg":"starting network manager","component":"mesh","node-id":"server"}
{"time":"2023-08-07T02:02:18.599013156-04:00","level":"INFO","msg":"Configuring firewall","component":"net-manager","opts":{"ID":"server","DefaultPolicy":"accept","WireguardPort":51821,"RaftPort":9443,"GRPCPort":8443}}
{"time":"2023-08-07T02:02:18.643151554-04:00","level":"INFO","msg":"Configuring wireguard","component":"net-manager","opts":{"NodeID":"server","ListenPort":51821,"Name":"","ForceName":false,"ForceTUN":false,"PersistentKeepAlive":0,"MTU":1350,"AddressV4":"172.16.0.1/32","AddressV6":"fda1:420:b42e:442::/64","Metrics":false,"MetricsInterval":15000000000,"DisableIPv4":false,"DisableIPv6":false}}
{"time":"2023-08-07T02:02:18.643335776-04:00","level":"INFO","msg":"creating wireguard interface","component":"wireguard","name":"webmesh0"}
{"time":"2023-08-07T02:02:18.657321514-04:00","level":"INFO","msg":"re-adding ourselves to the cluster with the acquired wireguard address","component":"mesh","node-id":"server"}
{"time":"2023-08-07T02:02:18.657365768-04:00","level":"INFO","msg":"updating configuration","component":"raft","command":0,"server-id":"server","server-addr":"172.16.0.1:9443","servers":["%+v",[{"Suffrage":0,"ID":"server","Address":"172.16.0.1:9443"}]]}
{"time":"2023-08-07T02:02:18.657447005-04:00","level":"INFO","msg":"initial bootstrap complete","component":"mesh","node-id":"server"}
{"time":"2023-08-07T02:02:18.657459953-04:00","level":"INFO","msg":"mesh connection is ready, starting services"}
{"time":"2023-08-07T02:02:18.657884285-04:00","level":"INFO","msg":"Starting gRPC server on [::]:8443","component":"server"}
{"time":"2023-08-07T02:02:38.015101241-04:00","level":"INFO","msg":"started call","component":"server","protocol":"grpc","grpc.component":"server","grpc.service":"v1.Node","grpc.method":"Join","grpc.method_type":"unary","peer.address":"100.127.110.11:36454","grpc.start_time":"2023-08-07T02:02:38-04:00","grpc.time_ms":"0.01"}
{"time":"2023-08-07T02:02:38.015353545-04:00","level":"INFO","msg":"join request received","component":"node-server","op":"join","id":"admin","request":{"id":"admin","public_key":"sDNLid5iqiuIrFJ4sCYoUgaE4Xlbdy2taZazqYdZBF0=","raft_port":9443,"grpc_port":8443,"assign_ipv4":true}}
{"time":"2023-08-07T02:02:38.016100312-04:00","level":"INFO","msg":"adding non-voter to cluster","component":"node-server","op":"join","id":"admin","raft_address":"172.16.0.2:9443"}
{"time":"2023-08-07T02:02:38.01612437-04:00","level":"INFO","msg":"updating configuration","component":"raft","command":1,"server-id":"admin","server-addr":"172.16.0.2:9443","servers":["%+v",[{"Suffrage":0,"ID":"server","Address":"172.16.0.1:9443"},{"Suffrage":1,"ID":"admin","Address":"172.16.0.2:9443"}]]}
{"time":"2023-08-07T02:02:38.016176729-04:00","level":"INFO","msg":"added peer, starting replication","component":"raft","peer":"admin"}
{"time":"2023-08-07T02:02:38.016396001-04:00","level":"ERROR","msg":"failed to appendEntries to","component":"raft","peer":{"Suffrage":1,"ID":"admin","Address":"172.16.0.2:9443"},"error":"dial tcp 172.16.0.2:9443: connect: no route to host"}
{"time":"2023-08-07T02:02:38.016547253-04:00","level":"INFO","msg":"sending join response","component":"node-server","op":"join","id":"admin","response":{"address_ipv4":"172.16.0.2/32","address_ipv6":"fda1:420:b42e:ceea::/64","network_ipv4":"172.16.0.0/12","network_ipv6":"fda1:420:b42e::/48","peers":[{"id":"server","public_key":"5sdQXSMQGUXWzj7Ri8ZyYPoom2++4ISdWk+9sWSZDjg=","primary_endpoint":"100.85.215.110:51821","wireguard_endpoints":["100.85.215.110:51821"],"address_ipv4":"172.16.0.1/32","address_ipv6":"fda1:420:b42e:442::/64","allowed_ips":["172.16.0.1/32","fda1:420:b42e:442::/64"]}],"mesh_domain":"webmesh.internal."}}
{"time":"2023-08-07T02:02:38.016636105-04:00","level":"INFO","msg":"finished call","component":"server","protocol":"grpc","grpc.component":"server","grpc.service":"v1.Node","grpc.method":"Join","grpc.method_type":"unary","peer.address":"100.127.110.11:36454","grpc.start_time":"2023-08-07T02:02:38-04:00","grpc.code":"OK","grpc.time_ms":"1.548"}
{"time":"2023-08-07T02:02:38.017910703-04:00","level":"WARN","msg":"could not ping descendant","component":"net-manager","descendant":"admin","error":"run pinger: write ip4 0.0.0.0->172.16.0.2: sendto: destination address required"}
{"time":"2023-08-07T02:02:38.018289245-04:00","level":"WARN","msg":"could not ping descendant","component":"net-manager","descendant":"admin","error":"run pinger: write ip4 0.0.0.0->172.16.0.2: sendto: destination address required"}
{"time":"2023-08-07T02:02:41.339334625-04:00","level":"ERROR","msg":"failed to heartbeat to","component":"raft","peer":"172.16.0.2:9443","backoff time":10000000,"error":"dial tcp 172.16.0.2:9443: i/o timeout"}
{"time":"2023-08-07T02:02:44.949781283-04:00","level":"ERROR","msg":"failed to heartbeat to","component":"raft","peer":"172.16.0.2:9443","backoff time":10000000,"error":"dial tcp 172.16.0.2:9443: i/o timeout"}
{"time":"2023-08-07T02:02:48.366660528-04:00","level":"ERROR","msg":"failed to heartbeat to","component":"raft","peer":"172.16.0.2:9443","backoff time":10000000,"error":"dial tcp 172.16.0.2:9443: i/o timeout"}
{"time":"2023-08-07T02:02:51.944757019-04:00","level":"ERROR","msg":"failed to heartbeat to","component":"raft","peer":"172.16.0.2:9443","backoff time":20000000,"error":"dial tcp 172.16.0.2:9443: i/o timeout"}
{"time":"2023-08-07T02:02:55.425564585-04:00","level":"ERROR","msg":"failed to heartbeat to","component":"raft","peer":"172.16.0.2:9443","backoff time":40000000,"error":"dial tcp 172.16.0.2:9443: i/o timeout"}
{"time":"2023-08-07T02:02:55.741667558-04:00","level":"INFO","msg":"shutting down gRPC server"}
{"time":"2023-08-07T02:02:55.741742112-04:00","level":"INFO","msg":"Shutting down gRPC server","component":"server"}
{"time":"2023-08-07T02:02:55.741822634-04:00","level":"INFO","msg":"shutting down mesh connection"}
{"time":"2023-08-07T02:02:55.741864178-04:00","level":"INFO","msg":"creating new db snapshot","component":"snapshots"}
{"time":"2023-08-07T02:02:55.741992909-04:00","level":"INFO","msg":"Number of ranges found: 2","component":"badger"}
{"time":"2023-08-07T02:02:55.742081389-04:00","level":"INFO","msg":"DB.Backup Streaming about 0 B of uncompressed data (0 B on disk)","component":"badger"}
{"time":"2023-08-07T02:02:55.742121461-04:00","level":"INFO","msg":"Sent range 0 for iteration: [, 2f72656769737472792f65646765732f61646d696e2f736572766572fffffffffffffff1) of size: 0 B","component":"badger"}
{"time":"2023-08-07T02:02:55.742132076-04:00","level":"INFO","msg":"Sent range 1 for iteration: [2f72656769737472792f65646765732f61646d696e2f736572766572fffffffffffffff1, ) of size: 0 B","component":"badger"}
{"time":"2023-08-07T02:02:55.754551205-04:00","level":"INFO","msg":"DB.Backup Sent data of size 2.2 KiB","component":"badger"}
{"time":"2023-08-07T02:02:55.754931487-04:00","level":"INFO","msg":"db snapshot complete","component":"snapshots","duration":"13.017689ms","size":"982 B"}
{"time":"2023-08-07T02:02:55.754985262-04:00","level":"INFO","msg":"starting snapshot up to","component":"raft","index":20}
{"time":"2023-08-07T02:02:55.755028353-04:00","level":"INFO","msg":"creating new snapshot","component":"raft","storage":"/var/lib/webmesh/store","component":"snapshotstore","path":"/var/lib/webmesh/store/snapshots/2-20-1691388175755.tmp"}
{"time":"2023-08-07T02:02:55.781345175-04:00","level":"INFO","msg":"snapshot complete up to","component":"raft","index":20}
{"time":"2023-08-07T02:02:55.781571056-04:00","level":"ERROR","msg":"failed to transfer leadership","component":"raft","storage":"/var/lib/webmesh/store","error":"cannot find peer"}
{"time":"2023-08-07T02:02:56.721167203-04:00","level":"ERROR","msg":"failed to appendEntries to","component":"raft","peer":{"Suffrage":1,"ID":"admin","Address":"172.16.0.2:9443"},"error":"dial tcp 172.16.0.2:9443: i/o timeout"}
{"time":"2023-08-07T02:02:58.988560091-04:00","level":"ERROR","msg":"failed to heartbeat to","component":"raft","peer":"172.16.0.2:9443","backoff time":80000000,"error":"dial tcp 172.16.0.2:9443: i/o timeout"}
{"time":"2023-08-07T02:02:58.988724645-04:00","level":"INFO","msg":"Lifetime L0 stalled for: 0s","component":"badger"}
{"time":"2023-08-07T02:02:59.016826222-04:00","level":"INFO","msg":"Level 0 [ ]: NumTables: 01. Size: 1.3 KiB of 0 B. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 64 MiB\nLevel 1 [ ]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel 2 [ ]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel 3 [ ]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel 4 [ ]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel 5 [ ]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel 6 [B]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel Done","component":"badger"}
{"time":"2023-08-07T02:02:59.031477119-04:00","level":"INFO","msg":"Lifetime L0 stalled for: 0s","component":"raft","storage":"/var/lib/webmesh/store","component":"raftbadger"}
{"time":"2023-08-07T02:02:59.099681848-04:00","level":"INFO","msg":"Level 0 [ ]: NumTables: 01. Size: 2.3 KiB of 0 B. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 64 MiB\nLevel 1 [ ]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel 2 [ ]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel 3 [ ]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel 4 [ ]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel 5 [ ]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel 6 [B]: NumTables: 00. Size: 0 B of 10 MiB. Score: 0.00->0.00 StaleData: 0 B Target FileSize: 2.0 MiB\nLevel Done","component":"raft","storage":"/var/lib/webmesh/store","component":"raftbadger"}

[pid 219825] sendto(22, "\10\0L\322\270\356\0\0\27y\6rKN\376\214\356nZ\225\234\267O~\235K^Y\302B\227V", 32, 0, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("172.16.0.2")}, 16 <unfinished ...>
[pid 219825] <... sendto resumed>)      = -1 EDESTADDRREQ (Destination address required)

I think this cause disconnections.

0.1.2