From owner-freebsd-security Thu Aug 24 20:48:26 2000 Delivered-To: freebsd-security@freebsd.org Received: from web4701.mail.yahoo.com (web4701.mail.yahoo.com [216.115.105.201]) by hub.freebsd.org (Postfix) with SMTP id B4C3B37B42C for ; Thu, 24 Aug 2000 20:48:24 -0700 (PDT) Message-ID: <20000825034824.11470.qmail@web4701.mail.yahoo.com> Received: from [206.180.159.81] by web4701.mail.yahoo.com; Thu, 24 Aug 2000 20:48:24 PDT Date: Thu, 24 Aug 2000 20:48:24 -0700 (PDT) From: Kurt Wuensche Subject: Route strangeness To: freebsd-security@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org I have recently been having strange occurences related to FBSD 2.2.5 routing. I am running static routing with icmp redirects turned off. What happens is that for no apparent reason the default route no longer works. The weird part is that netstat -nr and ifconfig show the default route still USGc and that the interface is up. I can even ping the gateway on my isp, but the packets go no further. Thinking it was an isp problem I called the isp. Their routing is apparently ok. Still pings from them sometimes don't come back. When this happens my host is also not visible from the internet, with a ping to an ip address returning request timeout errors. Even weirder is that a telnet by ip number to the machine remotely eventually shows a login prompt, but only after waiting for almost two minutes! I have run route monitor and tcpdump and examined messages. So far tcpdump has not shown any clues while route monitor occassionally shows RTM_LOSING messages from pid 0 and the user ppp process. messages shows nothing. Then for no reason, routing will work again. A reset also seems to fix the problem. I have a friend running 2.2.8 and the same identical things are happening to him. Any ideas? __________________________________________________ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message