Date: Wed, 16 May 2001 08:29:46 +0200 From: "Patrick O'Reilly" <patrick@mip.co.za> To: <ipfw@FreeBSD.ORG>, "Holtor" <holtor@yahoo.com> Cc: <questions@FreeBSD.ORG> Subject: RE: Bandwidth Limiting per IP Message-ID: <NDBBIMKICMDGDMNOOCAICEOGCHAA.patrick@mip.co.za> In-Reply-To: <20010516024156.89744.qmail@web11604.mail.yahoo.com>
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Holt, Your conclusion is correct - you do need a pipe for each IP with 100kbit per pipe. If you only have 1 pipe then all the IPS will SHARE the 100 kbit, which is not what you want. There is additional overhead in processing so many pipes, but if the box in question is doing nothing other than acting as a gateway/router then I doubt that this will be a real problem. I have a vague memory that someone once benchmarked a set if ipfw rules and found that with a set of 1000 rules (the average search would therefore hit at about rule 500) the actual latency induced was just a few milliseconds. Patrick. -----Original Message----- From: owner-freebsd-ipfw@FreeBSD.ORG [mailto:owner-freebsd-ipfw@FreeBSD.ORG]On Behalf Of Holtor Sent: 16 May 2001 04:42 To: ipfw@FreeBSD.ORG Cc: questions@FreeBSD.ORG Subject: Bandwidth Limiting per IP Hi All, I have a machine with several IP aliases to a single interface. I want to limit each IP to say 100 kbits in/out. Do I need to create seperate pipes for each IP and then create the normal ipfw rules? Or will one pipe of a limit of 100 kbit and linking the other IPFW rules to it be enough? My concern is that when the limit for one IP is reached I do not want to to affect the other IPs. I think (am pretty sure) i need seperate pipes and rules.. Then if so is there any ill effect for creating many pipes? One of my machines has over 100 IPs here. Thanks in advance for any help offered. Please reply to me directly aswell since i'm not on the list(s). Thank You, Holt __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ipfw" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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