Record network configuration

Remote Serial Console HOWTO
Prev | Appendix C. Upgrading Red Hat Linux from a serial console | Next

# 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`.

Prev | Home | Next
Prepare HTTP server | Up | Record LILO configuration