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Hi, |
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|
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I noticed a little modem activity while I was idle. I wasn't sure what |
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it was so I used wireshark to capture and exported it. I did a google |
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search and even read the wikipedia thing but I'm still not sure what to |
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make of this. Here is what I got from wireshark: |
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|
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++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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|
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No. Time Source Destination Protocol |
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Info |
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20 113.958458 209.244.187.170 224.0.0.1 IGMP |
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V2 Membership Query, general |
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|
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Frame 20 (44 bytes on wire, 44 bytes captured) |
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Arrival Time: Nov 21, 2008 06:41:55.382585000 |
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[Time delta from previous captured frame: 29.711333000 seconds] |
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[Time delta from previous displayed frame: 29.711333000 seconds] |
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[Time since reference or first frame: 113.958458000 seconds] |
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Frame Number: 20 |
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Frame Length: 44 bytes |
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Capture Length: 44 bytes |
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[Frame is marked: False] |
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[Protocols in frame: sll:ip:igmp] |
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[Coloring Rule Name: Routing] |
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[Coloring Rule String: hsrp || eigrp || ospf || bgp || cdp || vrrp |
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|| gvrp || igmp || ismp] |
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Linux cooked capture |
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Packet type: Unicast to us (0) |
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Link-layer address type: 512 |
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Link-layer address length: 0 |
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Source: <MISSING> |
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Protocol: IP (0x0800) |
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Internet Protocol, Src: 209.244.187.170 (209.244.187.170), Dst: |
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224.0.0.1 (224.0.0.1) |
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Version: 4 |
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Header length: 20 bytes |
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Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) |
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0000 00.. = Differentiated Services Codepoint: Default (0x00) |
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.... ..0. = ECN-Capable Transport (ECT): 0 |
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.... ...0 = ECN-CE: 0 |
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Total Length: 28 |
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Identification: 0x7a8b (31371) |
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Flags: 0x00 |
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0... = Reserved bit: Not set |
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.0.. = Don't fragment: Not set |
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..0. = More fragments: Not set |
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Fragment offset: 0 |
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Time to live: 1 |
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Protocol: IGMP (0x02) |
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Header checksum: 0xd1b4 [correct] |
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[Good: True] |
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[Bad : False] |
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Source: 209.244.187.170 (209.244.187.170) |
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Destination: 224.0.0.1 (224.0.0.1) |
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Internet Group Management Protocol |
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IGMP Version: 2 |
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Type: Membership Query (0x11) |
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Max Response Time: 10.0 sec (0x64) |
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Header checksum: 0xee9b [correct] |
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Multicast Address: 0.0.0.0 (0.0.0.0) |
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|
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0000 00 00 02 00 00 00 00 00 00 00 00 00 00 00 08 00 ................ |
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0010 45 00 00 1c 7a 8b 00 00 01 02 d1 b4 d1 f4 bb aa E...z........... |
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0020 e0 00 00 01 11 64 ee 9b 00 00 00 00 .....d...... |
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|
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|
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++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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|
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Ideas? Thanks |
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|
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Dale |
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|
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:-) :-) |
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