[Solved] Setting up a colo Gentoo router/gateway

yarug · Last edited by yarug on Sun Jul 16, 2006 9:25 pm; edited 1 time in total

Hi,

I want to setup a colocated Gentoo box as a router/gateway. The picture I have in mind is as follows:

Internet -> ROUTER/GW -> Switch -> Box(n)

That raises a few questions that I was hoping to get some feedback on:

1) The ISP requires the Internet network interface to be set to 100 Megabit full-duplex (NOT auto-negotiation). How would I do that?

2) How do I configure the network (eth0, eth1). If eth0 is the LAN side and eth1 is the Internet side? Right now I have in /etc/conf.d/net:

config_eth0=( "192.168.0.1 netmask 255.255.255.0 brd 192.168.0.255" )

config_eth1=( "<x.x.x>.129 netmask 255.255.255.240 brd <x.x.x>.143" )

Do I need to configure routes_eth0 and routes_eth1 as well?

3) Final question is how can I determine what eth0 and eth1 are physically? I mean I have one onboard ethernet connection and 2 more provided by an PCI card. Is the onboard interface always eth0?

Many thanks in advance,
Nes

think4urs11

yarug · Posted: Tue Jul 11, 2006 4:45 pm Post subject:

Thank you for your answer. I have been digging around and it seems I can also set parameters when the NIC module gets loaded (with ethtool I would need to run it every time the machine boots?). I have an e1000 based network adapter (more specific Intel 82571EB Gigabit Ethernet Controller) that I autoload through /etc/modules.autoload.d/kernel-2.6. Does anyone know what parameters I need to set in order to set the card to 100 Megabit full-duplex and turn off auto negotiation. If I run modinfo -p e1000 it shows:

debug:Debug level (0=none,...,16=all)
InterruptThrottleRate:Interrupt Throttling Rate
RxAbsIntDelay:Receive Absolute Interrupt Delay
RxIntDelay:Receive Interrupt Delay
TxAbsIntDelay:Transmit Absolute Interrupt Delay
TxIntDelay:Transmit Interrupt Delay
XsumRX:Disable or enable Receive Checksum offload
FlowControl:Flow Control setting
AutoNeg:Advertised auto-negotiation setting
Duplex:Duplex setting
Speed:Speed setting
RxDescriptors:Number of receive descriptors
TxDescriptors:Number of transmit descriptors

What would be the syntax to set these parameters in /etc/modules.autoload.d/kernel-2.6?

EDIT: I have found the syntax, I think I need to do this:

alias eth1 e1000
options e1000 Speed=100 Duplex=2

But where should I set this?

Many thanks,
Nes

yarug · Posted: Sun Jul 16, 2006 9:25 pm Post subject:

Answer is here: https://forums.gentoo.org/viewtopic-t-479475-highlight-.html