Packet capture hardware issue
TrapDoor:
I'm stumped - I've set up to do some packet captures using Wireshark looking at my working OBi100 as hooked up below using a 10/100 hub between the OBi and the router. The OBi and the hub act as if no connection exists between them - no connection status lights on either device and the OBi does not have an IP address. Changing hub ports and/or cables accomplishes nothing. All equipment is properly powered and the hub & cables work properly in all other situations. Without the hub, the OBi has worked fine for weeks. The OBi is set for 100Mb (***0, option 27, value=1).
Case #1: [OBi100]------[Netgear DS104 hub]------[Router LAN port]
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[PC w/Wireshark]
Next if I place a switch between the OBi and the hub, the proper connection status lights come on and everything works.
Case #2: [OBi100]------[DLink Switch]------[Netgear DS104 hub]------[Router LAN port]
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[PC w/Wireshark]
If the hub had failed elsewhere, I would blame it - but it has been otherwise faultless. Maybe I'm having a retarded day but something simple has to be escaping me. ??? Does anyone see what I'm overlooking?
Thanks in advance... TrapDoor
Shale:
Maybe one of the cables is a reverse cable, and the OBi cable in use is a crossover (reverse-wired)?
TrapDoor:
Quote from: Shale on March 11, 2013, 02:06:00 pm
Maybe one of the cables is a reverse cable, and the OBi cable in use is a crossover (reverse-wired)?
Still stumped - even tried using a crossover cable, no luck. For whatever reason, the OBi and the hub simply do not play together - will do my sampling elsewhere.
TrapDoor
giqcass:
After you connect the components try rebooting everything and test again. A power cycle should almost always be your first step solving connection problems.
giqcass:
You can also try toggling the Normal/Uplink push button on the front panel of the hub. Reboot everything after any changes.
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