Date: Sun, 26 Jan 2003 17:46:44 -0800 From: Terry Lambert <tlambert2@mindspring.com> To: Robert Watson <rwatson@freebsd.org> Cc: Sam Tannous <stannous@employees.org>, freebsd-hackers@freebsd.org Subject: Re: max simultaneous TCP connections (32,763)? Message-ID: <3E348F84.2546A320@mindspring.com> References: <Pine.NEB.3.96L.1030126163650.24134L-100000@fledge.watson.org>
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Robert Watson wrote: > Some of this has to do with limits on the available ancillary ports for > out-going connections. Try adding additional IP addresses to the client > machine, and forcing your client software to use specific IP addresses. [ ... ] > Hard-coding local addreses in your > application overrides that. I've never tried this (i.e., using multiple > IPs to get around the TCP/IP limit), so if it doesn't work, let me know. > In theory, it should. In fact, though, it doesn't, because inpcb_alloc sucks, and no one was willing to check in my proposed fix (see -current list archives). This will not help on FreeBSD, which assumes bound address ports are allocated out of the INADDR_ANY address (unbound) ports list. You have to do extra work. There are 3 "if" tests you have to work around; binding to a local IP before the connect only works around one of these. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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