Mark Nguyen wrote:
>
> DNS uses both TCP and UDP on port 53. I believe what you are trying to
> do is put your DNS server behind the router, in which case port 53 on
> your DNS server will be the destination.
>
> access-list 101 permit udp any host x.x.x.x eq domain
> access-list 101 permit tcp any host x.x.x.x eq domain
>
> If this is an authoritative DNS server, you will need TCP for it to do
> zone transfers and name queries. If it is only caching, then UDP alone
^^^^^^^^^^^^
Just to clear up some confusion, when I said name queries, I meant the
name queries from remote sites to your DNS server (this is required if
your DNS server is the authority for a particular domain). I don't mean
the name queries from your local network.
cheers,
mark
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