Date: Mon, 14 Dec 1998 17:19:53 -0500 (EST) From: Dan <dan@falken.netmetrics.net> To: freebsd-questions@FreeBSD.ORG Subject: Strange Network Problem Message-ID: <Pine.BSF.3.96.981214165731.2691A-100000@falken.netmetrics.net>
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I'm running 2.2.6-release on a P200/64MB with a Intel PRO/100+ PCI NIC. The box is colocated and assigned a chunk of 10 IPs from a class C. These IPs have been aliased to the NIC using ifconfig alias function. For whatever reason, the system keeps disappearing from the network. Attempts to ping, connect with or traceroute to all timeout or fail. I have tried pinging other hosts on my segment, as well as the router and everything responds normally. These outages occured a handful of times a few months ago but never lasted long and corrected themselves. Now it happens constantly, I keep loosing telnet session, http sessions and then have difficulty getting back in. If I ping the 2 highest addresses I have been assigned the server most of the time will come back up after reporting one single "Request Timed Out". After that, all IPs I have been assigned begin to respond within normal times. At first I figured this had to be sheer coincidence, but it appears to be repeatable about 80% of the time. After completing the session, the box will go dead within minutes. Monitoring uptime shows that the box has not rebooted. I'm very puzzled by this, I would really appreciate any suggestions or ideas! Also on the same topic I would like to clear up the following: 1) Is the ifconfig alias function the proper way to support multiple IPs on the same NIC? Other un*x implementations usually require the creation of seperate logical sub-devices for each IP. Does this need to be done in FreeBSD? Can it be done to provide statistical information on a per-IP basis? 2) What is the proper netmask for aliased IPs? I have found reasonably authoritative references to both 255.255.255.255 and 255.255.255.254 in the archives. I would like to clear this up. Thanks. Dan dan@sns.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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