Date: Wed, 10 Apr 2002 14:26:38 +0800 (KRAST) From: Eugene Grosbein <eugen@www.svzserv.kemerovo.su> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/36955: Stock ftpd does not reuse ports in passive mode and fails Message-ID: <200204100626.g3A6Qcv49878@www.svzserv.kemerovo.su>
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>Number: 36955 >Category: bin >Synopsis: Stock ftpd does not reuse ports in passive mode and fails >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Apr 09 23:30:01 PDT 2002 >Closed-Date: >Last-Modified: >Originator: Eugene Grosbein >Release: FreeBSD 4.5-STABLE i386 >Organization: Svyaz Service >Environment: Stock ftpd, passive mode transfers sysctl net.inet.ip.portrange.hi[first|last] range limited >Description: I have limited net.inet.ip.portrange.hi[first|last] range to several hundred (600-700) of ports. If I try to download many thousands of small files through 100Mb ethernet connection using passive mode, it starts but quickly fails with diagnostics: <--- 425 Can't open passive connection: Can't assign requested address. I guess it's because it does not reuse ports of dedicated range. So one client can exhaust ports and passive mode transfers will be blocked for some time. There is no such problem with active mode but it's not suitable for some configurations. >How-To-Repeat: See above. >Fix: Perhaps, use SO_REUSEPORT option? >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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