# connect to the serial port with screen -L /dev/cu.usbserial 115200 –L # arp -a? (192.168.0.233) at xxxxxx:e8:10 on igb0 permanent [ethernet]? (192.168.0.1) at yyyyyy:37:12 on igb0 expires in 1185 seconds [ethernet]root@blue1:~ # ifconfig igb2igb2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=1400b8<VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,VLAN_HWTSO,NETMAP> ether xxxxxx:e8:12 hwaddr 00:0d:b9:4d:e8:12 inet 192.168.2.1 netmask 0xffffff00 broadcast 192.168.2.255 inet6 xxxxxxx:812%igb2 prefixlen 64 scopeid 0x3 nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> media: Ethernet autoselect (1000baseT <full-duplex>) status: activeroot@blue1:~ # ifconfig igb2 downroot@blue1:~ # ifconfig igb2 uproot@blue1:~ # ifconfig igb2igb2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=1400b8<VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,VLAN_HWTSO,NETMAP> ether xxxxxx:e8:12 hwaddr xxxxxx:e8:12 inet 192.168.2.1 netmask 0xffffff00 broadcast 192.168.2.255 inet6 xxxxxx:e812%igb2 prefixlen 64 scopeid 0x3 nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> media: Ethernet autoselect (1000baseT <full-duplex>) status: activeroot@blue1:~ # arp -aSw.home (192.168.2.10) at xxxxxx:83:c7:2d on igb2 expires in 1193 seconds [ethernet]AP.home (192.168.2.11) at zzzzzz:17:a7 on igb2 expires in 1195 seconds [ethernet]blue1.home (192.168.2.1) at xxxxxx:e8:12 on igb2 permanent [ethernet]blue1.home (192.168.3.1) at xxxxxx:e8:11 on igb1 permanent [ethernet]? (192.168.0.233) at xxxxxx:e8:10 on igb0 permanent [ethernet]? (192.168.0.1) at xxxxxx37:12 on igb0 expires in 1178 seconds [ethernet]