Record network configuration

Remote Serial Console HOWTO
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C.6. Record network configuration

If the machine does not use the Dynamic Host Configuration Protocol then record the current network configuration. This is used to complete the installer's Configure TCP/IP screen.

Example C-1. Displaying the Internet Protocol configuration

bash$ ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:11:22:33:44:55  
          inet addr:10.1.2.3  Bcast:10.1.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:344233 errors:0 dropped:0 overruns:0 frame:0
          TX packets:285750 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          Interrupt:10 Base address:0x9000
bash$ netstat -r -n                                                          
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
10.1.2.0        0.0.0.0         255.255.255.0   U        40 0          0 eth0
127.0.0.0       0.0.0.0         255.0.0.0       U        40 0          0 lo
0.0.0.0         10.1.2.254      0.0.0.0         UG       40 0          0 eth0
bash$ cat /etc/resolv.conf
domain example.edu.au
nameserver 10.255.1.1
nameserver 10.255.2.1
nameserver 172.16.1.1

: The value of inet addr is the ‘IP address’. Our example shows 10.1.2.3. The value of Mask is the ‘Netmask’. Our example shows 255.255.255.0.
: The value in the Gateway column for Destination 0.0.0.0 is the ‘Default gateway’. Our example shows 10.1.2.254.
: The value of the first listed nameserver is the ‘Primary nameserver’. Our example shows 10.255.1.1.

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