[error]: listen tcp 外网ip:9090: bind: cannot assign requested address

[root@iz8vbfstfmcx216eabit0sz codis]# ./admin/codis-fe-admin.sh start

starting codis-fe ...
[root@iz8vbfstfmcx216eabit0sz codis]# tail -100 ./log/codis-fe.log.2017-09-06
2017/09/06 10:01:22 main.go:101: [WARN] set ncpu = 2
2017/09/06 10:01:22 main.go:104: [WARN] set listen = 外网ip:9090
2017/09/06 10:01:22 main.go:120: [WARN] set assets = /home/gopath/src/github.com/CodisLabs/codis/bin/assets
2017/09/06 10:01:22 main.go:155: [WARN] set --zookeeper =内网ip:4181
2017/09/06 10:01:22 zkclient.go:23: [INFO] zookeeper - zkclient setup new connection to 内网ip:4181
2017/09/06 10:01:22 main.go:194: [PANIC] listen 外网ip:9090 failed
[error]: listen tcp 外网ip:9090: bind: cannot assign requested address
[stack]:
0 /home/dd/soft/gopath/src/github.com/CodisLabs/codis/cmd/fe/main.go:194
main.main
... ...