Date: Fri, 9 Jan 2004 17:49:14 -0500 (EST) From: tomt@callcds.com To: freebsd-questions@freebsd.org Subject: RE: IPENCAP issue Message-ID: <2024.64.22.211.196.1073688554.squirrel@mail.callcds.com>
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I want to thank everyone for their replies to this. When I first composed this I was trying to get a handle on how to describe the problem let alone fix it. I apologize for not including more details. Here is the layout Wireless cloud network 192.168.0.0/27 192.168.0.1-192.168.0.30(usable addresses) Building A network 10.114.252.0/22 10.114.252.1-10.114.255.254(usable addresses) Building B network 10.114.96.0/24 10.114.96.1-10.114.111.254(usable addresses) Client computer I have been testing from this machine to the Internet via Mozilla Firebird 1.71 Running Mac OS X 10.3.2(also tried a Windows 2000 machine here) IP: 10.114.96.253 DG: 10.114.96.1 Building B FreeBSD 5.1 router LAN IP: 10.114.96.1 DG: 10.114.252.1 External IP: 192.168.0.6/27 Building A FreeBSD 5.1 router External IP: 192.168.0.3/27 DG: 10.114.255.254 LAN IP: 10.114.252.1 Internet router(Cisco 2501) IP: 10.114.255.254 DG: ISP provided Here is my test, I configured the Mac OS X machine to connect to the Building B FreeBSD router and access www.sears.com The machine connects to the site and in the browser displays the HTML title to the site but hangs forever waiting to connect to the site. Note: All these sites work from a machine connected to Building A on the 10.114.252.0/22 network and going out the 10.114.255.254 gateway. I have tried other sides and the sites that appear to work are ones that contain a single A record for their webserver like freebsd.org, ebay.com, cisco.com. When a site has more that 1 A record I get the same behavior as described above examples: sears.com, drudgereport.com, microsoft.com and msnbc.com Here are tcpdumps from 3 places within this test network, I do have the raw files if anyone wants them email me offlist Tcpdump from Building A Description: This tcpdump was done on the FreeBSD router located at 10.114.252.1/192.168.0.3 ____________________________________ Frame 1 (62 bytes on wire, 62 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 0, Ack: 0, Len: 0 Frame 2 (62 bytes on wire, 62 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 0, Ack: 1, Len: 0 Frame 3 (54 bytes on wire, 54 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 1, Ack: 1, Len: 0 Frame 4 (798 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 1, Ack: 1, Len: 744 Hypertext Transfer Protocol Frame 5 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 1, Ack: 745, Len: 0 Frame 6 (646 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 1, Ack: 745, Len: 592 Hypertext Transfer Protocol Frame 7 (255 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 593, Ack: 745, Len: 201 Hypertext Transfer Protocol Frame 8 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 794, Ack: 745, Len: 0 Frame 9 (54 bytes on wire, 54 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 745, Ack: 794, Len: 0 Frame 10 (54 bytes on wire, 54 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 745, Ack: 795, Len: 0 Frame 11 (54 bytes on wire, 54 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 745, Ack: 795, Len: 0 Frame 12 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 795, Ack: 746, Len: 0 Frame 13 (62 bytes on wire, 62 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 0, Ack: 0, Len: 0 Frame 14 (62 bytes on wire, 62 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 0, Ack: 1, Len: 0 Frame 15 (54 bytes on wire, 54 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 1, Ack: 1, Len: 0 Frame 16 (838 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 1, Ack: 1, Len: 784 Hypertext Transfer Protocol Frame 17 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 1, Ack: 785, Len: 0 Frame 18 (296 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 1, Ack: 785, Len: 242 Hypertext Transfer Protocol Frame 19 (1314 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 243, Ack: 785, Len: 1260 Hypertext Transfer Protocol Frame 20 (70 bytes on wire, 70 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.252.1 (10.114.252.1), Dst Addr: 129.33.131.219 (129.33.131.219) Internet Control Message Protocol Frame 21 (54 bytes on wire, 54 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 785, Ack: 243, Len: 0 Frame 22 (1314 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 1503, Ack: 785, Len: 1260 Hypertext Transfer Protocol Frame 23 (70 bytes on wire, 70 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.252.1 (10.114.252.1), Dst Addr: 129.33.131.219 (129.33.131.219) Internet Control Message Protocol Frame 24 (1314 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 2763, Ack: 785, Len: 1260 Hypertext Transfer Protocol Frame 25 (70 bytes on wire, 70 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.252.1 (10.114.252.1), Dst Addr: 129.33.131.219 (129.33.131.219) Internet Control Message Protocol Frame 26 (1314 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 243, Ack: 785, Len: 1260 Hypertext Transfer Protocol Frame 27 (70 bytes on wire, 70 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.252.1 (10.114.252.1), Dst Addr: 129.33.131.219 (129.33.131.219) Internet Control Message Protocol Frame 28 (1314 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 243, Ack: 785, Len: 1260 Hypertext Transfer Protocol Frame 29 (70 bytes on wire, 70 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.252.1 (10.114.252.1), Dst Addr: 129.33.131.219 (129.33.131.219) Internet Control Message Protocol Frame 30 (1314 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 243, Ack: 785, Len: 1260 Hypertext Transfer Protocol Frame 31 (70 bytes on wire, 70 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.252.1 (10.114.252.1), Dst Addr: 129.33.131.219 (129.33.131.219) Internet Control Message Protocol Frame 32 (1314 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 243, Ack: 785, Len: 1260 Hypertext Transfer Protocol Frame 33 (70 bytes on wire, 70 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.252.1 (10.114.252.1), Dst Addr: 129.33.131.219 (129.33.131.219) Internet Control Message Protocol Frame 34 (306 bytes on wire, 96 bytes captured) IEEE 802.3 Ethernet Logical-Link Control Cisco Discovery Protocol [Short Frame: CDP] Frame 35 (1314 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:30:94:e5:bb:23, Dst: 00:04:75:e8:8b:51 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 243, Ack: 785, Len: 1260 Hypertext Transfer Protocol Frame 36 (70 bytes on wire, 70 bytes captured) Ethernet II, Src: 00:04:75:e8:8b:51, Dst: 00:30:94:e5:bb:23 Internet Protocol, Src Addr: 10.114.252.1 (10.114.252.1), Dst Addr: 129.33.131.219 (129.33.131.219) Internet Control Message Protocol ____________________________________ Tcpdump from Building B Description: This tcpdump was done on the FreeBSD router located at 10.114.96.1/192.168.0.6 ____________________________________ Frame 1 (62 bytes on wire, 62 bytes captured) Ethernet II, Src: 00:06:5b:e2:5a:f6, Dst: 00:04:75:e8:8d:4c Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 0, Ack: 0, Len: 0 Frame 2 (62 bytes on wire, 62 bytes captured) Ethernet II, Src: 00:04:75:e8:8d:4c, Dst: 00:06:5b:e2:5a:f6 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 0, Ack: 1, Len: 0 Frame 3 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:06:5b:e2:5a:f6, Dst: 00:04:75:e8:8d:4c Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 1, Ack: 1, Len: 0 Frame 4 (798 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:06:5b:e2:5a:f6, Dst: 00:04:75:e8:8d:4c Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 1, Ack: 1, Len: 744 Hypertext Transfer Protocol Frame 5 (54 bytes on wire, 54 bytes captured) Ethernet II, Src: 00:04:75:e8:8d:4c, Dst: 00:06:5b:e2:5a:f6 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 1, Ack: 745, Len: 0 Frame 6 (646 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:04:75:e8:8d:4c, Dst: 00:06:5b:e2:5a:f6 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 1, Ack: 745, Len: 592 Hypertext Transfer Protocol Frame 7 (255 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:04:75:e8:8d:4c, Dst: 00:06:5b:e2:5a:f6 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 593, Ack: 745, Len: 201 Hypertext Transfer Protocol Frame 8 (54 bytes on wire, 54 bytes captured) Ethernet II, Src: 00:04:75:e8:8d:4c, Dst: 00:06:5b:e2:5a:f6 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 794, Ack: 745, Len: 0 Frame 9 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:06:5b:e2:5a:f6, Dst: 00:04:75:e8:8d:4c Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 745, Ack: 794, Len: 0 Frame 10 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:06:5b:e2:5a:f6, Dst: 00:04:75:e8:8d:4c Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 745, Ack: 795, Len: 0 Frame 11 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:06:5b:e2:5a:f6, Dst: 00:04:75:e8:8d:4c Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 745, Ack: 795, Len: 0 Frame 12 (54 bytes on wire, 54 bytes captured) Ethernet II, Src: 00:04:75:e8:8d:4c, Dst: 00:06:5b:e2:5a:f6 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 795, Ack: 746, Len: 0 Frame 13 (62 bytes on wire, 62 bytes captured) Ethernet II, Src: 00:06:5b:e2:5a:f6, Dst: 00:04:75:e8:8d:4c Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 0, Ack: 0, Len: 0 Frame 14 (62 bytes on wire, 62 bytes captured) Ethernet II, Src: 00:04:75:e8:8d:4c, Dst: 00:06:5b:e2:5a:f6 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 0, Ack: 1, Len: 0 Frame 15 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:06:5b:e2:5a:f6, Dst: 00:04:75:e8:8d:4c Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 1, Ack: 1, Len: 0 Frame 16 (838 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:06:5b:e2:5a:f6, Dst: 00:04:75:e8:8d:4c Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 1, Ack: 1, Len: 784 Hypertext Transfer Protocol Frame 17 (54 bytes on wire, 54 bytes captured) Ethernet II, Src: 00:04:75:e8:8d:4c, Dst: 00:06:5b:e2:5a:f6 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 1, Ack: 785, Len: 0 Frame 18 (296 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:04:75:e8:8d:4c, Dst: 00:06:5b:e2:5a:f6 Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 1, Ack: 785, Len: 242 Hypertext Transfer Protocol Frame 19 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:06:5b:e2:5a:f6, Dst: 00:04:75:e8:8d:4c Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 785, Ack: 243, Len: 0 ____________________________________ Tcpdump from between building A and B Description: This tcpdump was done on a separate unaddressed FreeBSD machine located between 192.168.0.3 and 192.168.0.6 ____________________________________ Frame 1 (82 bytes on wire, 82 bytes captured) Ethernet II, Src: 00:b0:d0:70:d8:c1, Dst: 00:b0:d0:7d:a3:01 Internet Protocol, Src Addr: 192.168.0.6 (192.168.0.6), Dst Addr: 192.168.0.3 (192.168.0.3) Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 0, Ack: 0, Len: 0 Frame 2 (82 bytes on wire, 82 bytes captured) Ethernet II, Src: 00:b0:d0:7d:a3:01, Dst: 00:b0:d0:70:d8:c1 Internet Protocol, Src Addr: 192.168.0.3 (192.168.0.3), Dst Addr: 192.168.0.6 (192.168.0.6) Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 0, Ack: 1, Len: 0 Frame 3 (74 bytes on wire, 74 bytes captured) Ethernet II, Src: 00:b0:d0:70:d8:c1, Dst: 00:b0:d0:7d:a3:01 Internet Protocol, Src Addr: 192.168.0.6 (192.168.0.6), Dst Addr: 192.168.0.3 (192.168.0.3) Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 1, Ack: 1, Len: 0 Frame 4 (818 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:b0:d0:70:d8:c1, Dst: 00:b0:d0:7d:a3:01 Internet Protocol, Src Addr: 192.168.0.6 (192.168.0.6), Dst Addr: 192.168.0.3 (192.168.0.3) Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 1, Ack: 1, Len: 744 Hypertext Transfer Protocol Frame 5 (74 bytes on wire, 74 bytes captured) Ethernet II, Src: 00:b0:d0:7d:a3:01, Dst: 00:b0:d0:70:d8:c1 Internet Protocol, Src Addr: 192.168.0.3 (192.168.0.3), Dst Addr: 192.168.0.6 (192.168.0.6) Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 1, Ack: 745, Len: 0 Frame 6 (666 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:b0:d0:7d:a3:01, Dst: 00:b0:d0:70:d8:c1 Internet Protocol, Src Addr: 192.168.0.3 (192.168.0.3), Dst Addr: 192.168.0.6 (192.168.0.6) Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 1, Ack: 745, Len: 592 Hypertext Transfer Protocol Frame 7 (275 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:b0:d0:7d:a3:01, Dst: 00:b0:d0:70:d8:c1 Internet Protocol, Src Addr: 192.168.0.3 (192.168.0.3), Dst Addr: 192.168.0.6 (192.168.0.6) Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 593, Ack: 745, Len: 201 Hypertext Transfer Protocol Frame 8 (74 bytes on wire, 74 bytes captured) Ethernet II, Src: 00:b0:d0:7d:a3:01, Dst: 00:b0:d0:70:d8:c1 Internet Protocol, Src Addr: 192.168.0.3 (192.168.0.3), Dst Addr: 192.168.0.6 (192.168.0.6) Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 794, Ack: 745, Len: 0 Frame 9 (74 bytes on wire, 74 bytes captured) Ethernet II, Src: 00:b0:d0:70:d8:c1, Dst: 00:b0:d0:7d:a3:01 Internet Protocol, Src Addr: 192.168.0.6 (192.168.0.6), Dst Addr: 192.168.0.3 (192.168.0.3) Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 745, Ack: 794, Len: 0 Frame 10 (74 bytes on wire, 74 bytes captured) Ethernet II, Src: 00:b0:d0:70:d8:c1, Dst: 00:b0:d0:7d:a3:01 Internet Protocol, Src Addr: 192.168.0.6 (192.168.0.6), Dst Addr: 192.168.0.3 (192.168.0.3) Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 745, Ack: 795, Len: 0 Frame 11 (74 bytes on wire, 74 bytes captured) Ethernet II, Src: 00:b0:d0:70:d8:c1, Dst: 00:b0:d0:7d:a3:01 Internet Protocol, Src Addr: 192.168.0.6 (192.168.0.6), Dst Addr: 192.168.0.3 (192.168.0.3) Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1156 (1156), Dst Port: http (80), Seq: 745, Ack: 795, Len: 0 Frame 12 (74 bytes on wire, 74 bytes captured) Ethernet II, Src: 00:b0:d0:7d:a3:01, Dst: 00:b0:d0:70:d8:c1 Internet Protocol, Src Addr: 192.168.0.3 (192.168.0.3), Dst Addr: 192.168.0.6 (192.168.0.6) Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1156 (1156), Seq: 795, Ack: 746, Len: 0 Frame 13 (82 bytes on wire, 82 bytes captured) Ethernet II, Src: 00:b0:d0:70:d8:c1, Dst: 00:b0:d0:7d:a3:01 Internet Protocol, Src Addr: 192.168.0.6 (192.168.0.6), Dst Addr: 192.168.0.3 (192.168.0.3) Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 0, Ack: 0, Len: 0 Frame 14 (82 bytes on wire, 82 bytes captured) Ethernet II, Src: 00:b0:d0:7d:a3:01, Dst: 00:b0:d0:70:d8:c1 Internet Protocol, Src Addr: 192.168.0.3 (192.168.0.3), Dst Addr: 192.168.0.6 (192.168.0.6) Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 0, Ack: 1, Len: 0 Frame 15 (74 bytes on wire, 74 bytes captured) Ethernet II, Src: 00:b0:d0:70:d8:c1, Dst: 00:b0:d0:7d:a3:01 Internet Protocol, Src Addr: 192.168.0.6 (192.168.0.6), Dst Addr: 192.168.0.3 (192.168.0.3) Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 1, Ack: 1, Len: 0 Frame 16 (858 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:b0:d0:70:d8:c1, Dst: 00:b0:d0:7d:a3:01 Internet Protocol, Src Addr: 192.168.0.6 (192.168.0.6), Dst Addr: 192.168.0.3 (192.168.0.3) Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 1, Ack: 1, Len: 784 Hypertext Transfer Protocol Frame 17 (74 bytes on wire, 74 bytes captured) Ethernet II, Src: 00:b0:d0:7d:a3:01, Dst: 00:b0:d0:70:d8:c1 Internet Protocol, Src Addr: 192.168.0.3 (192.168.0.3), Dst Addr: 192.168.0.6 (192.168.0.6) Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 1, Ack: 785, Len: 0 Frame 18 (316 bytes on wire, 96 bytes captured) Ethernet II, Src: 00:b0:d0:7d:a3:01, Dst: 00:b0:d0:70:d8:c1 Internet Protocol, Src Addr: 192.168.0.3 (192.168.0.3), Dst Addr: 192.168.0.6 (192.168.0.6) Internet Protocol, Src Addr: 129.33.131.219 (129.33.131.219), Dst Addr: 10.114.96.253 (10.114.96.253) Transmission Control Protocol, Src Port: http (80), Dst Port: 1157 (1157), Seq: 1, Ack: 785, Len: 242 Hypertext Transfer Protocol Frame 19 (74 bytes on wire, 74 bytes captured) Ethernet II, Src: 00:b0:d0:70:d8:c1, Dst: 00:b0:d0:7d:a3:01 Internet Protocol, Src Addr: 192.168.0.6 (192.168.0.6), Dst Addr: 192.168.0.3 (192.168.0.3) Internet Protocol, Src Addr: 10.114.96.253 (10.114.96.253), Dst Addr: 129.33.131.219 (129.33.131.219) Transmission Control Protocol, Src Port: 1157 (1157), Dst Port: http (80), Seq: 785, Ack: 243, Len: 0 ____________________________________ Apologies for the long message Tom
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