On Wed, 2006-12-13 at 13:17 -0800, Mike Wright wrote: > Terry Polzin wrote: > > Does anyone still use this? > > Is it compiled into the default kernel? > > > > It is very easy to add address(es) to an interface. From the command > line you could use the "ip" command to manipulate network devices. You > can also add routes and bring devices up and down, change their MAC, and > many other fun things. > > ip addr add 1.2.3.4/24 dev eth5 > ip addr add 2.3.4.5/16 dev eth5 > ip addr add 3.4.5.6/8 dev eth5 > > You would now have 3 addresses on different width subnets on one network > device. > > Its man page is very terse but gives a very good idea of its power. You can also create /etc/sysconfig/network-script/ifcfg-ethX:n files to add aliases. Set them up like the original ifcfg-ethX file, just change the "DEVICE", "IPADDR" and "NETMASK" stuff as appropriate. You don't want any "HWADDR" or "GATEWAY" entries in the aliases. Examples: /etc/sysconfig/network-scripts/ifcfg-eth0: DEVICE=eth0 BOOTPROTO=static HWADDR=ZZ:YY:XX:WW:VV:UU IPADDR=aaa.bbb.ccc.ddd IPV6ADDR= IPV6PREFIX= NETMASK=255.255.255.0 ONBOOT=yes /etc/sysconfig/network-scripts/ifcfg-eth0:0 DEVICE=eth0:0 BOOTPROTO=static IPADDR=eee.fff.ggg.hhh IPV6ADDR= IPV6PREFIX= NETMASK=255.255.255.0 ONBOOT=yes ---------------------------------------------------------------------- - Rick Stevens, Senior Systems Engineer rstevens@xxxxxxxxxxxxxxx - - VitalStream, Inc. http://www.vitalstream.com - - - - "I understand Windows 2000 has a Y2K problem." - ----------------------------------------------------------------------
