Re: [gentoo-user] Re: arping network profile issue

[Mick <michaelkintzios@gmail.com>]

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On Wednesday 05 May 2010 18:38:56 Zhou Rui wrote:
> Sorry it's a test profile, to avoid misunderstanding, post my profile here,
> and this file not working too.
> 
> $cat /etc/conf.d/net
> # This blank configuration will automatically use DHCP for any net.*
> # scripts in /etc/init.d.  To create a more complete configuration,
> # please review /etc/conf.d/net.example and save your configuration
> # in /etc/conf.d/net (this file :]!).
> 
> dns_domain="vm"
> config_eth0=( "arping" )
> 
> gateways_eth0=( "192.168.1.254,,192.168.1.114 192.168.1.1,,192.168.1.114" )

Are you sure that your routers do not respond to the default source address 
0.0.0.0 arping request?  Have you tried changing this to:

gateways_eth0=( "192.168.1.254 192.168.1.1" )


> config_192168001001=( "192.168.1.114/24" )
> routes_192168001001=( "default via 192.168.1.1" )
> 
> config_192168001254=( "192.168.1.114/24" )
> routes_192168001254=( "default via 192.168.1.254" )
> 
> dns_servers_eth0=( "8.8.8.8 8.8.4.4" )
> 
> fallback_eth0=( "dhcp" )
> dhcp_eth0="nodns"
> 
> 2010/5/6 Zhou Rui <ghoulr@gmail.com>
> 
> > Hi folks,
> > I setup a network interface to switch in two different network with
> > different gateways using config_eth0=( "arping" ), and I can get gateway
> > mac when use arping2 command directly.
> > But the /etc/init.d/net.eth0 start always fails, can you help me to find
> > the issue out?
> >
> > $ cat /etc/conf.d/net
> > # This blank configuration will automatically use DHCP for any net.*
> > # scripts in /etc/init.d.  To create a more complete configuration,
> > # please review /etc/conf.d/net.example and save your configuration
> > # in /etc/conf.d/net (this file :]!).
> >
> > dns_domain="vm"
> > config_eth0=( "arping" )
> >
> > gateways_eth0=( "192.168.1.254,,192.168.1.114 192.168.1.1,,192.168.1.114"
> > )
> >
> > #config_eth0=( "192.168.1.114/24" )
> > #dns_servers_eth0=( "8.8.8.8 8.8.4.4" )
> > #routes_192168001001=( "default via 192.168.1.1" )
> >
> > config_192168001254=( "192.168.1.114/24" )
> > routes_192168001254=( "default via 192.168.1.254" )
> >
> > dns_servers_eth0=( "8.8.8.8 8.8.4.4" )
> >
> > fallback_eth0=( "dhcp" )
> > dhcp_eth0="nodns"
> >
> > $ sudo arping2 -0 -r -c 1 -i eth0 -S 192.168.1.114 192.168.1.254
> > 00:1d:xx:xx:xx:xx

The option -0 negates the -S 192.168.1.114.  Use one or the other.

If it works with option -0 then use my suggested format for gateways_eth0= 
because you do not need to spoof the arping address.

HTH.
-- 
Regards,
Mick

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