Solved Network Interfaces lose IP-address after restarting system

C

catfelix

Hello
Could you help to figure out the problem about settings of IP-addresse of network interface.
There are:
Host: Windows 7, VirtualBox 4.2.12 r84980

Virtual machine: FreeBSD 11.1
Network interfaces:
1) bridge mode (em0)
2) internal mode (em1)

I add a local IP-address for network interfases of FreeBSD by:
ifconfig em0 192.168.1.200 255.255.255.0
The network works:
Code: 
root@gate:~ # ifconfig -a
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
        ether 08:00:27:25:36:b2
        hwaddr 08:00:27:25:36:b2
        inet 192.168.1.200 netmask 0xffffff00 broadcast 255.255.255.0
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
em1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
        ether 08:00:27:e5:b5:7e
        hwaddr 08:00:27:e5:b5:7e
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
        inet 127.0.0.1 netmask 0xff000000
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
        groups: lo
AND:
Code: 
root@gate:~ # ping 192.168.1.200
PING 192.168.1.200 (192.168.1.200): 56 data bytes
64 bytes from 192.168.1.200: icmp_seq=0 ttl=64 time=0.032 ms
64 bytes from 192.168.1.200: icmp_seq=1 ttl=64 time=0.058 ms
64 bytes from 192.168.1.200: icmp_seq=2 ttl=64 time=0.054 ms
^C
--- 192.168.1.200 ping statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 0.032/0.048/0.058/0.011 ms
-------------------
Then I add the lines in file /etc/rc.conf:
Code: 
Ifconfig_em0="inet 192.168.1.200 netmask 255.255.255.0"
Ifconfig_em1="inet 172.16.0.1 netmask 255.255.255.0"
defaultrouter="192.168.1.1"
...and restart networking( /etc/rc.d/netif restart) or reboot the system.
After that the network interfaces lose all settings about IP-address:
Code: 
em0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
        ether 08:00:27:25:36:b2
        hwaddr 08:00:27:25:36:b2
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
em1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
        ether 08:00:27:e5:b5:7e
        hwaddr 08:00:27:e5:b5:7e
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
        inet 127.0.0.1 netmask 0xff000000
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
        groups: lo
Why it happens and how to fix it?
 
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