[kanchilug] 1D1C - ifconfig
- From: Dhana Sekar <tkdhanasekar@xxxxxxxxx>
- To: ILUG-C <ilugc@xxxxxxxxxxxxx>, kanchilug@xxxxxxxxxxxxx
- Date: Wed, 26 Jun 2013 14:55:13 +0530
command: ifconfig
purpose: Configures or displays network interface parameters for a network
using TCP/IP.
syntax: ifconfig [options]
examples:
1. To view network settings of an ethernet adapter
$ ifconfig eth0
2. To display details of all interfaces including disabled interfaces
$ ifconfig -a
3. To disable an interface
$ ifconfig eth0 down
4. To enable an interface
$ ifconfig eth0 up
5. To assign an ip-address to an interface
$ ifconfig ethh0 192.168.1.33
6. To change subnet mask of interface eth0
$ ifconfig eth0 netmask 255.255.255.0
7. To change broadcast address of interface of interface eth0
$ ifconfig eth0 broadcast 192.168.2.33
8. To assign ip-address, subnet mask, and broadcast address
at same time to interface eth0
$ ifconfig eth0 192.168.1.33 netmask 255.255.255.0 broadcast 192.168.2.33
9. To change the maximum transition unit to xxx for eth0
$ ifconfig eth0 mtu xxx
10. To enable promiscuous mode
$ ifconfig eth0 promisc
in promiscuous mode the eth card does not drop the packet whether the
packet belongs to itself or not it allow the packets to flow through it
11. To put interface in normal mode
$ ifconfig eth0 -promisc
for more info: $ man ifconfig
regards,
dhanasekar
Kanchilug Blog : http://kanchilug.wordpress.com
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