Hope this is an easy answer:
Command:
tshark -i eth1 -f "port 67 or 68" -V
In the below code snippet, I am trying to determine the option 43, but tshark is only givng me a partial value for option 43
Option: (t=43,l=128) Vendor-Specific Information
Option: (43) Vendor-Specific Information
Length: 128
Value: 01063C6E756C6C3E020445535442030845434D3A45535442...
It there a switch that will allow me a more verbose to complete value return?
I know about the -x option, but that gives me the whole packet, I only need the parsed option 43?
Thanks,
Moe
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Bootstrap Protocol
Message type: Boot Request (1)
Hardware type: Ethernet
Hardware address length: 6
Hops: 1
Transaction ID: 0x261b884f
Seconds elapsed: 0
Bootp flags: 0x0000 (Unicast)
0... .... .... .... = Broadcast flag: Unicast
.000 0000 0000 0000 = Reserved flags: 0x0000
Client IP address:
0.0.0.0 (
0.0.0.0)
Your (client) IP address:
0.0.0.0 (
0.0.0.0)
Next server IP address:
0.0.0.0 (
0.0.0.0)
Relay agent IP address:
10.0.104.1 (
10.0.104.1)
Client MAC address: Motorola_5f:28:23 (00:1c:11:5f:28:23)
Server host name not given
Boot file name not given
Option: (t=53,l=1) DHCP Message Type = DHCP Discover
Option: (53) DHCP Message Type
Length: 1
Value: 01
Option: (t=55,l=8) Parameter Request List
Option: (55) Parameter Request List
Length: 8
Value: 010306070F173336
1 = Subnet Mask
3 = Router
6 = Domain Name Server
7 = Log Server
15 = Domain Name
23 = Default IP Time-to-Live
51 = IP Address Lease Time
54 = Server Identifier
Option: (t=60,l=6) Vendor class identifier = "DSG1.0"
Option: (60) Vendor class identifier
Length: 6
Value: 445347312E30
Option: (t=43,l=128) Vendor-Specific Information
Option: (43) Vendor-Specific Information
Length: 128
Value: 01063C6E756C6C3E020445535442030845434D3A45535442...
Option: (t=61,l=7) Client identifier
Option: (61) Client identifier
Length: 7
Value: 01001C115F2823
Hardware type: Ethernet
Client MAC address: Motorola_5f:28:23 (00:1c:11:5f:28:23)
Option: (t=82,l=14) Agent Information Option
Option: (82) Agent Information Option
Length: 14
Value: 0104000100040206001C115F2822
Agent Circuit ID: 00010004
Agent Remote ID: 001C115F2822
End Option
