Practical Uses of Forwarding
Forwarding can be quite handy. If your Internet access is slow, or metered, if you pay for each byte that goes over your connection, using forwarding is recommended. Forwarding is simply telling your DNS to forward queries to another DNS server,which will resolve the query on its behalf. Or perhaps, forward it further. This has a synergy effect with caching. If several servers forward queries to one server its cache will grow large and it will be quite likely to have the answer cached.
The Australian Academic and Research Network
A rather extreme example of this is the Australian Academic and Research Network, AARNet2. The network is shared among many institutions in Australia, and they all share one Internet link ...
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