On 10/19/2012 04:54 PM, Frantisek Hanzlik wrote:
Frantisek Hanzlik wrote:
Fernando Cassia wrote:
In my server I have eth0 and eth1 (previously were em16, em17, but I
hated it so I changed to the traditional approach).
Each NIC port is connected to a different ISP. However, more often
than not while moving things around I get the cables reversed so ETH0
goes to ISP2 and ETH0 goes to ISP2, or vice versa, ie the cables are
interchanged.
So... is there a way, in such situation, to manually (say, from a bash
script) bring down both eth ports, and re-arrange those? (so that eth1
becomes eth0), and do so without a reboot?.
I´d like to make eth0 and eth1 consistent regardless of mixed cabling
so every time I bring down eth0 I know what isp I´m bringing down.
What IP each port is connected to I can figure out via a query to
www.whatismyip.com, but the question remains if it´s possible to
change the naming of two ethernet ports without a reboot.
What would be the best way? ethtool?
TIA
FC
IMO one possibility is deactivate interfaces, by rmmod unload its drivers,
change /etc/udev/rules.d/NN-net.rules and modprobe/insmod drivers again
(and then activate network). udev daemon should create network names with
new ones.
Another way could be using 'ifrename' utility from 'wireless-tools'
package: 'ifrename -i OldInterfaceName -n NewInterfaceName'
(network perhaps should be down too and it seems as ifrename requires
'/etc/iftab' file (which may be empty, 'touch /etc/iftab'))
FH
But there is question if it will be usable in the future, maybe cripled
bastard systemd with udevd functions will crimp it ;)
FH
I confirm that ifrename does not survive a reboot.
You have to rename it all over again, so I placed
the ifrename in rc.local.
--
users mailing list
users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe or change subscription options:
https://admin.fedoraproject.org/mailman/listinfo/users
Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Have a question? Ask away: http://ask.fedoraproject.org
