RE: IPENCAP issue

tomt_at_callcds.com
Date: 01/09/04

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Date: Fri, 9 Jan 2004 14:22:54 -0500 (EST)
To: freebsd-questions@freebsd.org

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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