Freebsd rename nic device

KVM 에서 운영하는 freebsd nic name 이 vtnet0 입니다.

일반적인 환경에서는 문제가 없지만 PF 등을 설정할때 다른 가상 Device 와 착각? 을 할것으로 보입니다. 🙂

vtnet0 -> em0 로 바꾸는 방법을 간단히 소개 할려고 합니다.

 

변경전 

root@bsd11:~ # ifconfig
vtnet0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=6c07bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
        ether 52:54:00:c1:cb:84
        hwaddr 52:54:00:c1:cb:84
        inet 192.168.0.40 netmask 0xffffff00 broadcast 192.168.0.255
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet 10Gbase-T <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 0x2
        inet 127.0.0.1 netmask 0xff000000
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
        groups: lo
root@bsd11:~ #

 

/etc/rc.conf 수정 및 시스템 리부팅

root@bsd11:~ # cat /etc/rc.conf
hostname="bsd11"
keymap="us.iso.kbd"
ifconfig_vtnet0_name="em0"
ifconfig_em0="inet 192.168.0.40 netmask 255.255.255.0"
root@bsd11:~ # init 6

ifconfig_vtnet0_name=”em0″  // vtnet0 의 Device name 을 em0 로 변경 합니다.
ifconfig_em0=”inet 192.168.0.40 netmask 255.255.255.0″  // 기존 vtnet0 를 em0 로 변경 합니다.

 

변경후 

root@bsd11:~ # ifconfig
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=6c07bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
        ether 52:54:00:c1:cb:84
        hwaddr 52:54:00:c1:cb:84
        inet 192.168.0.40 netmask 0xffffff00 broadcast 192.168.0.255
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet 10Gbase-T <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 0x2
        inet 127.0.0.1 netmask 0xff000000
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
        groups: lo
root@bsd11:~ #