Date: Wed, 8 May 2002 21:38:16 -0400 From: Don Bowman <don@sandvine.com> To: "'freebsd-stable@freebsd.org'" <freebsd-stable@freebsd.org> Subject: RE: tens of thousands of ip aliases Message-ID: <FE045D4D9F7AED4CBFF1B3B813C85337676166@mail.sandvine.com>
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On Wed, May 08, 2002 at 09:34:07PM -0400, Edwin Groothuis wrote: > On Wed, May 08, 2002 at 09:16:07PM -0400, Don Bowman wrote: > > I'm working on an application where I am using a pair > > of FreeBSD 4.5 boxes to simulate a much larger network, > > with a device under test between them. > > Personally, I wouldn't do this with aliases (specially not with the > amount you needed) but with simulating the network traffic via > libpcap and libnet. Yes you would have to write your own IP stack > to keep track of and to act on the packets, but you will not have > the limitations of the operating system. Yes, good suggestion, I'm already doing that as well. I have bound libpcap into TCL, and have written a class library in ITCL to allow contructing arbitrary packets. This works well, and can achieve the scale I need. I also need to have TCP behaviour and flows, which is very difficult to do without reinventing the network stack. I need to be able to simulate standard network clients (eg browsers, etc.) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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