Date: Sat, 8 Dec 2001 17:11:33 GMT From: zietlow@berbee.com To: questions@freebsd.org Cc: net@freebsd.org Subject: Really Weird Network issue. Message-ID: <200112081711.fB8HBXd00931@berbee.com>
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Sorry for the cross post, but I wasn't sure which group would be able to answer this better. This is a REALLy weird issue I am having. So here it goes. My internal LAN was working fine last week. I went to work, and while I was there, I ran a make world on my laptop. It's running FreeBSD 4.4-stable. Had no issues. Fast forward today, I finish my work week and bring my laptop home. I I try to connect up to my network and get outside onto my cable modem I cannot talk to my gateway router via any other means than udp and icmp. My /etc/hosts is the same as it always has been, they are identical on both machines (except for the laptop which has some extra settings for the work lan. Totally different subnet). I thought this was a TCP issue, still could be, here are is the wackiness about this issue. I have a switched 100 base T cabling network with 6 comptuers on it, 2 windows (1 gaming, 1 dial up laptop), 2 debian (1 DHCP/back up, 1 File server), 2 FreeBSD (laptop and gateway). ALL computers can ping each other. Every computer except the laptop can SSH, telnet, http, and FTP into the gateway. The laptop can do all of these to every box on the network except the Gateway. The Gateway can ssh, telnet, http, and ftp into the laptop and every other machine on the network. I can ssh from the laptop to another computer on the network then SSH into the gateway. I cannot however SSH from the laptop to the gateway directly. I CAN ssh from the Gateway to the laptop directly though. SSH just hangs, eventually I get "Secure connection to 192.168.1.1 refused" Telnet just hangs, I get "telnet: unable to connect to host 192.168.1.1:Operation timed out" "unable to connect to remote host" FTP just hangs, NMAP TCP scan just hangs. nmap udp scan works. I can ping using Hostnames setup in /etc/hosts, I can ping via IPs. name resolution isn't an issue. Firewall isn't an issue. I use ipf. I had "pass in all/pass out all" on respective lines in my ipf.rules file. In case it was a switch issue, I put just both computers on a hub I knew worked, same issues. When I run a tcpdump. I see the out going packets from the laptop, but no response packets from the gateway. Arp isn't an issue. I can arp just fine. Here are the uname -a for each box Gateway:"FreeBSD wiggum.the-rob.com 4.4-STABLE FreeBSD 4.4-STABLE #0: Sat Dec 8 09:59:09 CST 2001 zietlow@wiggum.the-rob.com:/usr/src/sys/compile/FIREWALL i386" Laptop:"FreeBSD Homer.the-rob.com 4.4-STABLE FreeBSD 4.4-STABLE #6: Sat Dec 8 10:40:07 CST 2001 zietlow@Homer.the-rob.com:/usr/src/sys/compile/NEWKERNEL i386" If you've stayed with me this long, any ideas? I am stumped. If you need anymore info I will happily supply it. I think it's some weird tcp issue. Hints, thoughts, pointers? Thanks for listening and helping Rob To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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