Network Problems (HLFS build 20080328)
Mwanguhya Daniel Murungi
dmurungi at dicts.mak.ac.ug
Tue Jul 1 06:34:23 PDT 2008
Here are the three NICS;
02:09.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5704 Gigabit
Ethernet (rev 03) [eth2 ]
02:09.1 Ethernet controller: Broadcom Corporation NetXtreme BCM5704 Gigabit
Ethernet (rev 03) [ eth1 ]
03:08.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100]
(rev 10) [ eth0 ]
Am using kernel version 18.104.22.168. I tried switching the two networks ( put
the Students on eth1 and NOC on eth2) but still get the same problem. NAPI
and ACPI (though ACPI_PROCFS is not) are enabled. eth1 and eth2 are using
the Broadcom Tigon 3 driver and eth0 is using the e100 driver.
From: hlfs-dev-bounces at linuxfromscratch.org
[mailto:hlfs-dev-bounces at linuxfromscratch.org] On Behalf Of Gilles Espinasse
Sent: Monday, June 30, 2008 3:45 PM
To: Hardened LFS Development List
Subject: Re: Network Problems (HLFS build 20080328)
Selon Mwanguhya Daniel Murungi <dmurungi at dicts.mak.ac.ug>:
> I built an HLFS system for use as our Faculty firewall. The machine (Tyan
> motherboard) has 3 network cards, and 1 GB of RAM. We have two networks
> and students). When I connect the NOC network (less than 50 users - eth1),
> everything is fine. When I connect the student's network (> 500 users
> the machine freezes until I remove the network cable from the Student's
> When I ran my LFS distro on the same machine, both networks are OK and can
> access the Internet. I have looked at the interrupts and ensured each
> network interface has a separate IRQ but I still face the same problem. (I
> also enabled TCP congestion control in the kernel.) Any ideas will be
Are the three NIC with same hardware?
If not, if you switch the two networks, what happen?
Wich network driver? with NAPI?
Wich kernel? with acpi enabled?
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