[H-GEN] Motorola Cable modem

[Cunningham, Conor]

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Alan,

	I have a Motorola cable modem, Optus connection and a smoothwall
2.0 beta 6 box. I have also used the GPL 1.0 as well.

I have had a similar problem with my Smoothie behaving oddly with
regards to the external interface obtaining an IP address. Sometimes,
and I can't think why, eth1 (external interface) doesn't even bring
itself up at boot time. When I SSH into the box I must do a ifconfig
eth1 up. However, I do not get an IP address by doing this and their
doesn't seem to be a dhclient command or similar on the system.

The first time this happened, I SSH'd in and ran setup from the command
line. I went into networking, and setup the network again. i.e. ensure
that your network type is GREEN(internal interface) + RED(external
interface). Ensure that the RED interface is set to be DHCP and that the
GREEN is setup as a 255.255.255.0 network. (apologies in advance if this
information is redundant to you). I rebooted the box remotely and then
it worked.

This problem happened again when I, for one reason or another, woke up
in a stupor at about 4am and unplugged the power from the smoothie. This
time, I couldn't for the life of me fix the problem. So after a few
hours of hacking about, I did a reinstall and I haven't had the problem
since, albeit only 2 days. To be honest, I never had this problem with
1.0 and am almost tempted to roll back to it if the stability of 2.0
doesn't improve.

If anyone else has comment or suggestions about Smoothwall, I would love
to hear them.

Kind Regards,
 
Conor Cunningham
(07) 3898 6133
-----Original Message-----
From: Alan Harrison [mailto:agh at alanh.org] 
Sent: Wednesday, 12 November 2003 1:23 PM
To: general at lists.humbug.org.au
Subject: [H-GEN] Motorola Cable modem

[ Humbug *General* list - semi-serious discussions about Humbug and
]
[ Unix-related topics. Posts from non-subscribed addresses will vanish.
]

Hi folks,

I've been trying to fit a firewall between a Motorola SB4200 Cable modem
and
a LAN.
If I connect my Laptop (win2k) directly to the modem (Ethernet
connection),
the modem's DHCP server gives me an IP address.
If I try the same piece of Ethernet cable into a smoothwall box that is
set
to obtain an IP address automatically via DHCP, I do not get an IP
address.

Has anyone had any experience with these modems on the Optus cable
network?


Best Regards,
Alan Harrison.


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