Date: 09 Dec 2001 07:11:41 -0600 From: Hal Snyder <hal@vailsys.com> To: hackers@FreeBSD.ORG Subject: Re: cable modem connection problem Message-ID: <87n10s8rn6.fsf@cb293842-b.rmdws1.il.home.com> In-Reply-To: <85k7vyzspp.fsf@stiegl.niksun.com> (Andrew Heybey's message of "07 Dec 2001 15:21:54 -0500") References: <20011206071926.QTHW27606.mta05-svc.ntlworld.com@there> <3C0F7966.908CD6E6@bturtle.ch> <3C1005ED.4090001@isi.edu> <20011207000918.JIID10846.mta07-svc.ntlworld.com@there> <3C100F4D.3080900@isi.edu> <85k7vyzspp.fsf@stiegl.niksun.com>
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Andrew Heybey <ath@niksun.com> writes: >> > Somebody mentioned on this list that deleting the arp table entry >> > of the default router of the cable modem provider (as a cron job) >> > solved the problem. I had not tried arp deletion but noticed severe slowdown or apparent disconnect (except able to ping default gateway) occasionally fixed by deleting, then re-adding the default gateway. >> > Could this have something to do with leases being renewed (by the >> > isp dhcp server and consequently the cable modem) and FreeBSD not >> > updating routing tables? (I'm guessing big time here - not an >> > expert by any means) Sounds as if the MAC of the upstream provider occasionally changes. Don't know enough about cable to understand it better, and problem is gone now so can't check for sure. >> If your cable modem provides IP, it's probably not involved in the >> DHCP negotiations. Does your IP address change before you start to >> see this slowdown? > > No new address. Ditto. No new address was received. IP address of default gateway did not change. I even tried this with packet filters off, same thing. > I wondered if there is not some parameter that windows supplies in > the DHCP request that dhclient does not? This started happening to > me when my cable company (with @home) took over the cable modem isp > business from my old ISP. Same timing here. Problem started when @home took over for MediaOne. Haven't seen it in the past few days since attbi took over @home. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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