On 2011-10-17, Grant Edwards <grant.b.edwa...@gmail.com> wrote:
> On 2011-10-17, Grant Edwards <grant.b.edwa...@gmail.com> wrote:
>> I'm trying to configure a second IP address for eth1 using the syntax
>> I found at
>>
>>
>> http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=4&chap=2#doc_chap1
>>
>> But, it doesn't work.
>>
>> Here's my /etc/init.d/net file:
>>
>> config_eth0="192.168.8.4/16"
>> routes_eth0="default via 192.168.0.254"
>> config_eth1=10.0.0.1/8"
>> 192.168.250.1/24"
>>
>> But, starting eth1 says:
>>
>> # /etc/init.d/net.eth1 start
>> * Bringing up interface eth1
>> * Starting netplug on eth1 ... [ ok ]
>> * Backgrounding ...
>> * ERROR: net.eth1 failed to start
>>
>> Only eth1 is configured. eth1:1 isn't configured.
>
> I disabled netplug for both interfaces, and that got rid of the error
> message:
>
> # /etc/init.d/net.eth1 start
> * Bringing up interface eth1
> * 10.0.0.1/8 ... [ ok ]
> * 192.168.250.1/24 ... [ ok ]
>
> Now I can ping addresses in the 192.168.250/24 subnet. However, I
> still don't see eth1:1 in netstat output the way that I do when I
> manually configure it. According TFM, eth1:1 should have been created
> for the second address. What gives?
OK, I think I've figured it out. The startup system is using iproute2
instead of ifconfig. The manual says that ifconfig is the default,
and I don't see anywhere where I've overridden it, but the manual also
says that if I were using ifconfig I'd have an eth1:1 device.
Iproute2 knows how to assign multiple IP address to an interface
without creating multiple devices, and using the "ip" command shows
the second address:
$ /sbin/ip address show
[...]
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
qlen 1000
link/ether 00:16:17:84:a7:b3 brd ff:ff:ff:ff:ff:ff
inet 10.0.0.1/8 brd 10.255.255.255 scope global eth1
inet 192.168.250.1/24 brd 192.168.250.255 scope global eth1
[...]
Still haven't figured out where iproute2 is getting enabled instead of
the default ifconfig....
--
Grant Edwards grant.b.edwards Yow! Gibble, Gobble, we
at ACCEPT YOU ...
gmail.com
