[nsp] dns forwarding

[Kristofer Sigurdsson]

Roger, Wed, Jul 07, 2004 at 11:48:11AM -0500 :
> Richard Danielli wrote:
> 
> >Roger,
> >
> >If you only have to satisfy client requests, you might consider looking
> >to the ip-helper address command in IOS. 
> > 
> >
> 
> Tried that..  Didn't work..  I put the helper address on the internal 
> interface and pointed the help-address to the dns server.
> 
> I tried a dns query on the ip of the router and it returned nothing.  
> From my understanding the helper-address forwards udp broadcasts - ie 
> for dhcp/bootp a dns query is a udp unicast. 

The helper-address directs BOOTP/DHCP IIRC - not broadcasts in general.

-- 
Kristófer Sigurðsson		   | Tel: +354 525 4103 / MSN: ks at rhi.hi.is
Netsérfræðingur/Network specialist | Reiknistofnun HÍ/University of Iceland