Subject: Re: NetBSD in BSD Router / Firewall Testing
To: Mike Tancsa <>
From: Jason Thorpe <>
List: tech-net
Date: 12/01/2006 09:23:59
On Dec 1, 2006, at 7:00 AM, Mike Tancsa wrote:

> At 09:55 AM 12/1/2006, Steven M. Bellovin wrote:
>> > ipintrq:
>> >          queue length: 0
>> >          maximum queue length: 256
>> >          packets dropped: 133721212
>> This is the second report we've seen recently of packet drops in this
>> queue.  We need to understand what's going on, I think.
> Hi,
> I am guessing I am just overwhelming the box no ? Each of my  
> generator boxes are blasting about 600Kpps in opposite directions  
> through the box 10 byte UDP packets.  Even when doing just the one  
> stream in NetBSD, the box (r2) acting as the router is totally  
> unresponsive from the serial console and OOB NIC.

I've jumped into this thread late -- what exactly is your  
configuration?  Are you using IP Filter or PF anywhere in the mix  
here?  If not, then it would be good to know why IP Fast Forwarding  
isn't kicking in here (bypasses the IP input queue completely).

-- thorpej