From owner-freebsd-bugs@FreeBSD.ORG Thu Feb 24 11:00:18 2011 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 56994106566B for ; Thu, 24 Feb 2011 11:00:18 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 2BBF08FC16 for ; Thu, 24 Feb 2011 11:00:18 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p1OB0IsN096849 for ; Thu, 24 Feb 2011 11:00:18 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p1OB0Hrp096835; Thu, 24 Feb 2011 11:00:18 GMT (envelope-from gnats) Resent-Date: Thu, 24 Feb 2011 11:00:18 GMT Resent-Message-Id: <201102241100.p1OB0Hrp096835@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Avner Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4C835106564A for ; Thu, 24 Feb 2011 10:55:18 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 3C2C38FC14 for ; Thu, 24 Feb 2011 10:55:18 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id p1OAtHlw021610 for ; Thu, 24 Feb 2011 10:55:17 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id p1OAtHQd021609; Thu, 24 Feb 2011 10:55:17 GMT (envelope-from nobody) Message-Id: <201102241055.p1OAtHQd021609@red.freebsd.org> Date: Thu, 24 Feb 2011 10:55:17 GMT From: Avner To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: conf/154999: Problems with ARP table X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Feb 2011 11:00:18 -0000 >Number: 154999 >Category: conf >Synopsis: Problems with ARP table >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Feb 24 11:00:17 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Avner >Release: FreeBSD 7.2 >Organization: Provale >Environment: >Description: I'm a beginner in FreeBSD, but here, where I work I have a problem with one of the servers. For you understand the problem, I have a great network in Bridge, that is, this server with FreeBSD is the gateway of all network, and with it, all MAC ADDRESS of the clients arive in the server. With it, the table ARP have constants problems, such as, when I use the command ping I can't ping one IP, because this IP is in the table ARP. For me do it, I have to clear the ARP table (with the command arp -ad), and so, after this, I'm be able to ping the IP. I have a server for monitor the services of the network (with NAGIOS installed) and this software always shows host as DOWN, but it generally happens because the ARP table. Now, I'm looking for one directory that have this limit of the table ARP. My aim is found this directory and increase the limit of IP's of the ARP table, and with it, don't have more problems with it. I found this directory in LINUX, that is /proc/sys/net/ipv4/neigh/default/gc_thresh1,/proc/sys/net/ipv4/neigh/default/gc_thresh2 and /proc/sys/net/ipv4/neigh/default/gc_thresh3, but in UNIX I didn't found yet. The first directory have the minimum number of IP's (128) to clear it, the second the average (512) and the third the maximum (1024). With the command "arp -an|wc -l" I can see the number of MAC's in the ARP table, and when it pass from about 900, the problem starts. If someone could help me to solve this problem, I'd very grateful. >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: