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Old 08-06-2006, 12:36   #8
shin0r
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Join Date: Oct 2003
Location: CARDIFF
Posts: 26
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Re: Why can't the UBRs do DNS?

Quote:
Originally Posted by altis
Mmm... I didn't mention that 194.168.8.100 is NTL's primary DNS server in Winnersh. The other one is 194.168.4.100.

Virtually every time you click on a link, your browser will have to check out with Winnersh first. Causing unnecessary, traffic, unnecessary delay and unnecessary all-your-eggs-in-one-basket-ness.
The 194.168 addresses are frontend IPs for a farm of DNS servers that sit behind them. The traffic goes to Winnersh because a number of the core routers are there. I don't know what you mean by "all-your-eggs-in-one-basket."

You can't have DNS servers at every UBR, due to cost and complexity. Every time a DNS change is made it would have to be synced to every UBR in the country. Add to this the extra sysadmin time needed to service nodes all around the country and it becomes unmanageable.
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