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**Paul** · 15-01-2005, 12:16

Obviously you don't know how dns works.

The client (you) sends the dns request as a udp packet from a random port (like 63353) on your machine to port 53 on the dns server - this then sends the reply back to you as another udp packet from it's port 53, back to the previously picked port (63353) on your machine.

If you are blocking these replies (as you appear to be) then your dns lookups will simply fail.

15-01-2005, 12:16	#2
Paul Dr Pepper Addict Cable Forum Admin Join Date: Oct 2003 Location: Nottingham Age: 63 Services: Zen & YouFibre FTTP, Sky Q TV, Sky Mobile, Flextel SIP Posts: 31,319	Re: NTL DNS Servers Obviously you don't know how dns works. The client (you) sends the dns request as a udp packet from a random port (like 63353) on your machine to port 53 on the dns server - this then sends the reply back to you as another udp packet from it's port 53, back to the previously picked port (63353) on your machine. If you are blocking these replies (as you appear to be) then your dns lookups will simply fail. __________________ Baby, I was born this way.