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Date: Wed, 7 Mar 2001 11:18:26 -0800 (PST)
From: Danny_Johnston@simn.com
To: freebsd-gnats-submit@FreeBSD.org
Subject: Route table appears to fill up, and connections can not be extablished
X-Send-Pr-Version: www-1.0

>Number:         25592
>Category:       kern
>Synopsis:       Route table appears to fill up, and connections can not be extablished
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Mar 07 11:20:00 PST 2001
>Closed-Date:    Wed Jun 6 10:08:16 PDT 2001
>Last-Modified:  Wed Jun 06 10:30:29 PDT 2001
>Originator:     Danny Johnston
>Release:        4.0
>Organization:
Dick Simon Trucking
>Environment:
FreeBSD mail.simn.com 4.0-RELEASE FreeBSD 4.0-RELEASE #1: Tue Jan 30 16:23:32 MST 2001     root@mail.simn.com:/usr/src/sys/compile/Mail  i386

>Description:
Problem was noticed when remote user could not pop mail from mailserver.
The route table appered to have 256 entries in it and route for new host
would not clone.  Tmp fix was to delete all cloned routes from route
table.
>How-To-Repeat:
Have not attepted to recreate problem, but it has happend three or four
times.
>Fix:

>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: ru 
State-Changed-When: Wed Jun 6 10:08:16 PDT 2001 
State-Changed-Why:  
256 entries in the routing table is not high.  Make sure you 
have `maxusers' set to a high value, or tune network buffers 
with the NMBCLUSTERS option. 

See with `vmstat -m' who "eats" memory. 

If the problem is with too many cloned routes, try setting the 
net.inet.ip.rtexpire=0. 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=25592 
>Unformatted:
