[Gllug] SMC 7401BRA

[French, Alastair]

Sorry for the delay in replying, this is my work account, easter hols and
all that!
 
I am using two fixed IPs but the only public one is the WAN port on the ADSL
Router / Modem. I had some problems with the DHCP on hte router so assigned
the LAN port and the 'external' port on the SuSE firewall box static IPs.
The internal side of the SuSE box also has a static IP but runs a DHCP
server for the rest of the internal LAN.
 
The only traffic I pass through the router (via port redirection, I can't
remember the exact page from here) is SSH(22) web(80) and SMTP(25). All
other traffic is originated internally MASQed if needed by IPchains on the
firewall and then probably NATed by the router before it gets outside. 
 
The fixed IP is only fixed as far a plusnet is concerned. I could not get
the router to work with a fixed IP, probably something to do with masks /
routing set up wrong. The router is set to use DHCP from plusnet but always
gets the same IP.
 
As far as bridging goes I have not experimented with this at all so can't
help I'm afraid.
 
Hope this has been of some help
 
Alastair

-----Original Message-----
From: Gerald Keen [mailto:gerry at london.com]
Sent: Friday, April 18, 2003 12:47 PM
To: gllug at linux.co.uk
Subject: [Gllug] SMC 7401BRA


Alistair,
 
forgive the unsolicited email but I found a posting of yours which mentioned
you had an SMC 7401BRA DSL router which you had set up with a SuSE box as a
firewall behind it on a Plus Net DSL connection.
 
I am hoping you can help me if, as I assume, you are using 2 fixed IPs here,
one for the router and one for the SuSE box.  I have a virtually identical
set-up requirement; to assign the first public IP to the router and the
second public IP to a firewall on the inside.
 
How did you set up the barricade to work without NAT to pass all IP traffic
through to the second public IP (the firewall)?
 
I have tried for hours to work out how this is set up.  I have set the WAN
IP to be the first in the range, switched off NAT and DHCP server and set
the firewall to be the second public IP.  However I don't know what IP to
assign to the LAN port.  Currently it is set to default (192.168.1.1).  I
thought I should enable Bridging, but when I do that, the Barricade router
won't attach to Plus Net.
 
If you have a configfuration crib sheet to do this I would be most grateful.
 
Many thanks
 
Gerry Keen



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