On 23/02/2009 23:51, Tom Storey wrote:

Erm, what does that have to do with DNS lookups? :-)

Nothing at all, except that it stops this behaviour:

... when you have no DNS servers configured and mistype "configt", or some other command that doesnt exist and it tries to resolve it through broadcast several times.

More specifically, IOS command mode will assume by default that any non recognised command is actually a hostname which it should try to connect to - a fossilised relic of times past, when routers were often terminal servers. You can stop it doing this by using "transport preferred none" on the appropriate line configuration. Nick