Date: Mon, 11 Dec 2000 19:35:54 -0600 From: David Kelly <dkelly@HiWAAY.net> To: freebsd-questions@FreeBSD.ORG Subject: dhclient, ipfw, and a new ISP, caused a bit of problem Message-ID: <200012120135.eBC1Zs402988@grumpy.dyndns.org>
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Prior cablemodem ISP was not up to my expectations. So today (isn't competition great?) the _other_ cable company on the pole in front of my house connected. Killed dhclient and moved the /var/db/dhclient.leases file out of the way. "dhclient fxp0" on the new cable modem. Got it! Flushed the firewall rules and inserted the new IP address in place. And fell on my face. Dec 11 18:41:47 grumpy /kernel: ipfw: 1700 Deny UDP 24.246.28.166:1799 207.230.75.221:53 out via fxp0 Am not running named. But the above is trying to do DNS to the new ISP using the old IP address issued by the previous ISP (via dhclient). These are the rules I used before, but now with my new IP address: 01100 allow udp from any 53 to 24.214.56.157 01200 allow udp from 24.214.56.157 to any 53 But I'm still stumped as to why it was using the old IP address as I wouldn't think the other DHCP server would like that. Come to think of it using tcpdump at work the NT systems tend to use 0.0.0.0 on the initial DHCP cry for help. So I probably need to open the above to a net range where my ISP's DHCP servers lie? Rebooting cleared the problem. Didn't like it. After all this isn't Windows. -- David Kelly N4HHE, dkelly@hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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