docker create network

[root@arch-docker ~]# ifconfig eth0
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.253.51  netmask 255.255.255.0  broadcast 192.168.253.255
        inet6 fe80::20c:29ff:fe9d:efba  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:9d:ef:ba  txqueuelen 1000  (Ethernet)
        RX packets 6936  bytes 610237 (595.9 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3872  bytes 483731 (472.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


[root@arch-docker ~]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.253.1   0.0.0.0         UG    0      0        0 eth0
172.17.0.0      0.0.0.0         255.255.0.0     U     0      0        0 docker0
192.168.253.0   0.0.0.0         255.255.255.0   U     0      0        0 eth0


[root@arch-docker ~]# docker network create --subnet=192.168.253.0/24 --gateway=192.168.253.1 metro-network
d2972a08903a8d678effeeb61626e961c96c02da77b07395bab863ea97f7628d

[root@arch-docker ~]# docker run --net=metro-network --ip=192.168.253.52 -itd --name=librenms librenms
b9feb27bcbfca92b29804256a413f3152f07e20b9f626de26b5c2bfbd6232f7c


[root@arch-docker ~]# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
b9feb27bcbfc        librenms            "/bin/bash"         7 seconds ago       Up 5 seconds        80/tcp              librenms


[root@arch-docker ~]# docker attach b9


root@b9feb27bcbfc:/# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
30: eth0@if31: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:c0:a8:fd:34 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 192.168.253.52/24 brd 192.168.253.255 scope global eth0
       valid_lft forever preferred_lft forever


root@b9feb27bcbfc:/# read escape sequence


[root@arch-docker ~]# ping 192.168.253.52
PING 192.168.253.52 (192.168.253.52) 56(84) bytes of data.
From 192.168.253.51 icmp_seq=1 Destination Host Unreachable
From 192.168.253.51 icmp_seq=2 Destination Host Unreachable
From 192.168.253.51 icmp_seq=3 Destination Host Unreachable