Random "Error: invalid ip address" crash

[mkg20001]

The libp2p-nodetrust server crashed because of an incoming TCP connection.
Unsure what caused this.

Logs:

2018-06-14T19:01:26.104Z libp2p:tcp:listen new connection /ip4/185.156.177.133/tcp/26907
2018-06-14T19:01:26.148Z libp2p:tcp:listen new connection /ip4/185.156.177.133/tcp/27966
Error: invalid ip address
    at ip2buf (/home/maciej/libp2p-nodetrust/server/node_modules/libp2p-tcp/node_modules/multiaddr/src/convert.js:72:32)
    at Function.convertToBuffer [as toBuffer] (/home/maciej/libp2p-nodetrust/server/node_modules/libp2p-tcp/node_modules/multiaddr/src/convert.js:49:14)
    at /home/maciej/libp2p-nodetrust/server/node_modules/libp2p-tcp/node_modules/multiaddr/src/codec.js:85:35
    at arrayMap (/home/maciej/libp2p-nodetrust/server/node_modules/lodash.map/index.js:140:21)
    at map (/home/maciej/libp2p-nodetrust/server/node_modules/lodash.map/index.js:1836:10)
    at stringTuplesToTuples (/home/maciej/libp2p-nodetrust/server/node_modules/libp2p-tcp/node_modules/multiaddr/src/codec.js:79:10)
    at stringToBuffer (/home/maciej/libp2p-nodetrust/server/node_modules/libp2p-tcp/node_modules/multiaddr/src/codec.js:171:13)
    at Object.fromString (/home/maciej/libp2p-nodetrust/server/node_modules/libp2p-tcp/node_modules/multiaddr/src/codec.js:178:10)
    at ClassIsWrapper.withIs.proto.className (/home/maciej/libp2p-nodetrust/server/node_modules/libp2p-tcp/node_modules/multiaddr/src/index.js:40:25)
    at new Multiaddr (/home/maciej/libp2p-nodetrust/server/node_modules/class-is/index.js:40:33)
    at withIs.proto.className (/home/maciej/libp2p-nodetrust/server/node_modules/libp2p-tcp/node_modules/multiaddr/src/index.js:26:12)
    at Multiaddr (/home/maciej/libp2p-nodetrust/server/node_modules/class-is/index.js:40:33)
    at module.exports (/home/maciej/libp2p-nodetrust/server/node_modules/libp2p-tcp/src/get-multiaddr.js:23:10)
    at Server.net.createServer (/home/maciej/libp2p-nodetrust/server/node_modules/libp2p-tcp/src/listener.js:27:18)
    at emitOne (events.js:116:13)
    at Server.emit (events.js:211:7)
    at TCP.onconnection (net.js:1565:8)

More details: https://sentry.zion.host/share/issue/b1f38bc0602b46bd948b18bdb8c91523/