Date: Mon, 22 Oct 2001 10:08:39 +0100 From: Alexander Thorp <atecsc@yahoo.com> To: freebsd-net@freebsd.org Subject: Re: PPP problem Message-ID: <3BD3E217.EE8E2BE9@yahoo.com>
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> > You could try enabling tcp/ip and physical logging to see if data is > being written as expected. > > I'd be surprised if this was a ppp problem - it doesn't look at the > frame payload unless you're using NAT, filtering, or some of the more > nasty log levels. Perhaps you've got some rogue firewall rules ? > > > I am unable to bring up PPP to my ISP. DNS works, but PING and all TCP-based > > protocols don't. I haven't tried any other UDP-based protocols. I have copied > > here ifconfig -a and netstat -rn output both before bringing the link up and > > while it is up. Lastly I have also copied the relevant lines from ppp.log. > > > > Does anybody have any idea what is going wrong and how I can fix it? > > > > Alex Thorp I've enabled TCP/IP logging, and this is what I get for an attempt at first FTP, then SMTP, then PING. The only packets that ever come IN are DNS replies; all the TCP and ICMP packets go OUT but I don't get any replies coming IN. I am using a vanilla FreeBSD 4.4 installation, with firewalling off; I have copied my rc.conf at the end of this email. $ cat /var/log/ipflog | grep tun0 21/10/2001 17:10:36.977452 tun0 @0:1 L 192.168.1.4,1024 -> 128.9.0.107,53 PR udp len 20 45 OUT 21/10/2001 17:10:44.976936 tun0 @0:1 L 192.168.1.4,1024 -> 192.5.5.241,53 PR udp len 20 45 OUT 21/10/2001 17:10:45.678917 tun0 @0:1 L 62.136.168.208,1028 -> 195.92.195.95,53 PR udp len 20 61 OUT 21/10/2001 17:10:46.042636 tun0 @0:1 L 195.92.195.95,53 -> 62.136.168.208,1028 PR udp len 20 173 IN 21/10/2001 17:10:46.046374 tun0 @0:1 L 62.136.168.208,1029 -> 195.92.195.95,53 PR udp len 20 61 OUT 21/10/2001 17:10:46.253630 tun0 @0:1 L 195.92.195.95,53 -> 62.136.168.208,1029 PR udp len 20 276 IN 21/10/2001 17:10:46.263951 tun0 @0:1 L 62.136.168.208,1024 -> 62.243.72.50,21 PR tcp len 20 60 -S OUT 21/10/2001 17:10:48.976662 tun0 @0:1 L 192.168.1.4,1024 -> 198.41.0.10,53 PR udp len 20 45 OUT 21/10/2001 17:10:49.260875 tun0 @0:1 L 62.136.168.208,1024 -> 62.243.72.50,21 PR tcp len 20 60 -S OUT 21/10/2001 17:10:52.260910 tun0 @0:1 L 62.136.168.208,1024 -> 62.243.72.50,21 PR tcp len 20 60 -S OUT 21/10/2001 17:10:52.976421 tun0 @0:1 L 192.168.1.4,1024 -> 192.33.4.12,53 PR udp len 20 45 OUT 21/10/2001 17:10:55.260954 tun0 @0:1 L 62.136.168.208,1024 -> 62.243.72.50,21 PR tcp len 20 44 -S OUT 21/10/2001 17:10:56.976256 tun0 @0:1 L 192.168.1.4,1024 -> 198.32.64.12,53 PR udp len 20 45 OUT 21/10/2001 17:10:58.261052 tun0 @0:1 L 62.136.168.208,1024 -> 62.243.72.50,21 PR tcp len 20 44 -S OUT 21/10/2001 17:11:00.975941 tun0 @0:1 L 192.168.1.4,1024 -> 128.63.2.53,53 PR udp len 20 45 OUT 21/10/2001 17:11:01.261102 tun0 @0:1 L 62.136.168.208,1024 -> 62.243.72.50,21 PR tcp len 20 44 -S OUT 21/10/2001 17:11:04.975779 tun0 @0:1 L 192.168.1.4,1024 -> 128.9.0.107,53 PR udp len 20 45 OUT 21/10/2001 17:11:07.261189 tun0 @0:1 L 62.136.168.208,1024 -> 62.243.72.50,21 PR tcp len 20 44 -S OUT 21/10/2001 17:11:08.975466 tun0 @0:1 L 192.168.1.4,1024 -> 192.112.36.4,53 PR udp len 20 45 OUT 21/10/2001 17:11:12.975225 tun0 @0:1 L 192.168.1.4,1024 -> 192.203.230.10,53 PR udp len 20 45 OUT 21/10/2001 17:11:16.975007 tun0 @0:1 L 192.168.1.4,1024 -> 202.12.27.33,53 PR udp len 20 45 OUT 21/10/2001 17:11:20.974750 tun0 @0:1 L 192.168.1.4,1024 -> 192.36.148.17,53 PR udp len 20 45 OUT 21/10/2001 17:11:23.588094 tun0 @0:1 L 62.136.168.208,1030 -> 195.92.195.95,53 PR udp len 20 64 OUT 21/10/2001 17:11:23.733214 tun0 @0:1 L 195.92.195.95,53 -> 62.136.168.208,1030 PR udp len 20 157 IN 21/10/2001 17:11:23.737438 tun0 @0:1 L 62.136.168.208,1031 -> 195.92.195.95,53 PR udp len 20 64 OUT 21/10/2001 17:11:23.893235 tun0 @0:1 L 195.92.195.95,53 -> 62.136.168.208,1031 PR udp len 20 244 IN 21/10/2001 17:11:23.904681 tun0 @0:1 L 62.136.168.208,1025 -> 195.92.195.153,25 PR tcp len 20 60 -S OUT 21/10/2001 17:11:24.974555 tun0 @0:1 L 192.168.1.4,1024 -> 198.41.0.4,53 PR udp len 20 45 OUT 21/10/2001 17:11:26.901431 tun0 @0:1 L 62.136.168.208,1025 -> 195.92.195.153,25 PR tcp len 20 60 -S OUT 21/10/2001 17:11:28.974324 tun0 @0:1 L 192.168.1.4,1024 -> 128.8.10.90,53 PR udp len 20 45 OUT 21/10/2001 17:11:29.901477 tun0 @0:1 L 62.136.168.208,1025 -> 195.92.195.153,25 PR tcp len 20 60 -S OUT 21/10/2001 17:11:32.901517 tun0 @0:1 L 62.136.168.208,1025 -> 195.92.195.153,25 PR tcp len 20 44 -S OUT 21/10/2001 17:11:32.974093 tun0 @0:1 L 192.168.1.4,1024 -> 193.0.14.129,53 PR udp len 20 45 OUT 21/10/2001 17:11:35.901635 tun0 @0:1 L 62.136.168.208,1025 -> 195.92.195.153,25 PR tcp len 20 44 -S OUT 21/10/2001 17:11:36.973927 tun0 @0:1 L 192.168.1.4,1024 -> 192.5.5.241,53 PR udp len 20 45 OUT 21/10/2001 17:11:38.901672 tun0 @0:1 L 62.136.168.208,1025 -> 195.92.195.153,25 PR tcp len 20 44 -S OUT 21/10/2001 17:11:44.973382 tun0 @0:1 L 192.168.1.4,1024 -> 198.41.0.10,53 PR udp len 20 45 OUT 21/10/2001 17:11:52.972852 tun0 @0:1 L 192.168.1.4,1024 -> 192.33.4.12,53 PR udp len 20 45 OUT 21/10/2001 17:11:55.323544 tun0 @0:1 L 62.136.168.208,1032 -> 195.92.195.95,53 PR udp len 20 61 OUT 21/10/2001 17:11:55.483629 tun0 @0:1 L 195.92.195.95,53 -> 62.136.168.208,1032 PR udp len 20 261 IN 21/10/2001 17:11:55.525212 tun0 @0:1 L 62.136.168.208 -> 62.243.72.50 PR icmp len 20 84 icmp echo/0 OUT 21/10/2001 17:11:56.532115 tun0 @0:1 L 62.136.168.208 -> 62.243.72.50 PR icmp len 20 84 icmp echo/0 OUT 21/10/2001 17:11:57.542204 tun0 @0:1 L 62.136.168.208 -> 62.243.72.50 PR icmp len 20 84 icmp echo/0 OUT 21/10/2001 17:11:58.552182 tun0 @0:1 L 62.136.168.208 -> 62.243.72.50 PR icmp len 20 84 icmp echo/0 OUT 21/10/2001 17:11:59.562180 tun0 @0:1 L 62.136.168.208 -> 62.243.72.50 PR icmp len 20 84 icmp echo/0 OUT 21/10/2001 17:12:00.572194 tun0 @0:1 L 62.136.168.208 -> 62.243.72.50 PR icmp len 20 84 icmp echo/0 OUT 21/10/2001 17:12:00.972369 tun0 @0:1 L 192.168.1.4,1024 -> 198.32.64.12,53 PR udp len 20 45 OUT 21/10/2001 17:12:01.582329 tun0 @0:1 L 62.136.168.208 -> 62.243.72.50 PR icmp len 20 84 icmp echo/0 OUT $ cat /etc/rc.conf gateway_enable="YES" hostname="MYMACHINE.MYDOMAIN.CO.UK" ifconfig_ep0="inet 192.168.1.1 netmask 255.255.255.0" kern_securelevel_enable="NO" moused_enable="NO" moused_type="NO" nfs_reserved_port_only="YES" sendmail_enable="YES" sshd_enable="YES" inetd_enable="YES" # @@AT 21/10/01 - trying to find out what is happening to TCP and ICMP ipfilter_enable="YES" ipmon_enable="YES" ipmon_flags="-D /var/log/ipflog" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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