[dns-operations] Is this valid edns0 query?
Mohamed.Lrhazi at georgetown.edu
Fri Oct 10 17:14:27 UTC 2014
We have an appliance generating DNS requests that our F5 DNS server is
silently dropping... We are working with both vendors to try and figure out
whose fault it is....
Could someone please tell me if this request is valid?
User Datagram Protocol, Src Port: 18646 (18646), Dst Port: domain (53)
Domain Name System (query)
Transaction ID: 0x9b89
Flags: 0x0100 Standard query
Answer RRs: 0
Authority RRs: 0
Additional RRs: 1
compliance.georgetown.edu: type A, class IN
Type: A (Host address)
Class: IN (0x0001)
<Root>: type OPT
Type: OPT (EDNS0 option)
UDP payload size: 1280
Higher bits in extended RCODE: 0x0
EDNS0 version: 0
Data length: 31
Option: Unknown (20732)
Option Code: Unknown (20732)
Option Length: 27
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