problem with 2 nics in same box
Andrew Boothman
andrew at cream.org
Sat Jan 3 18:14:52 PST 2004
Scott Renna wrote:
> I am using Snort and a few other tools to decide which I'd like best.
> Here's the thing about Lowell's comment on Bridging. Is this necessary
> in this case? I don't want the interface without an IP to EVER transmit
> outbound. If I Need to enable bridging I'll do so. The other thing is,
> is it possible to configure each card to be on a different subnet(like
> xl1 on 10.X.X.X and xl0 on 192.X.X.X)?
See Matthew Seaman's post on this - I think he knows more about this
than I do ;) I remember using snort for something recently and don't
remember encountering any problems - It shouldn't need to be assigned an
IP AFAIK.
> Andrew, do you like VooDoo Blue? Let me know, I am involved.
For some reason, your email address insipred me to check out
www.vdbmusic.com - I hadn't heard of the band before then. I downloaded
a couple of MP3s from the site and they are pretty good :)
Not sure if their music ever makes it to Scotland though, which is where
I am!
> -----Original Message-----
> From: Andrew Boothman [mailto:andrew at cream.org]
> Sent: Saturday, January 03, 2004 12:27 PM
> To: Scott Renna
> Cc: freebsd-questions at freebsd.org
> Subject: Re: problem with 2 nics in same box
>
> Scott Renna wrote:
>
>
>>Hello List,
>>
>>I am having some difficulty in getting my xl0 and xl1 3com cards to
>
> work
>
>>the way I'd like. I'm running 5.1 Release and I'm basically trying to
>>have one interface with no IP address(specifying it as such in
>>/etc/rc.conf as ifconfig_xl1="up") And I'd like to have the other(xl0)
>>to have an IP address of my Internal Network. The purpose of this
>
> setup
>
>>is to sniff traffic with the interface that has no IP address and
>
> allow
>
>>for management and reporting over the interface that has an IP
>>associated with the Internal network.
>>
>>For some reason, this is just not working for me at all. I've tried
>
> to
>
>>configure via rc.conf and this fails to work. I've also tried
>
> assigning
>
>>an RFC 1918 address to the interface I want sniffing as this traffic
>>should not be routable, but it doesn't seem to work.
>
>
> What software are you using to sniff the traffic? Do you have the bpf
> device in your kernel? Do you get an error message or just no traffic
> recieved?
>
> Andrew
>
> P.S. Are you something to do with VooDoo Blue or do you just do their
> web site, or just a fan or something? :)
>
>
>
>
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