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PIX 501 relay client DNS requests out to an internet DNS server?

 
 
nicough@gmail.com
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      11-17-2006
router = 10.0.0.254
pix outside = 10.0.0.1
pix inside = 192.168.0.254
client = 192.168.0.1
client dns = 192.168.0.254

pix config:

ip address outside 10.0.0.1 255.255.255.0
ip address inside 192.168.0.254 255.255.255.0
route outside 0.0.0.0 0.0.0.0 10.0.0.254
dhcpd address 192.168.0.50-192.168.0.90 inside
dhcpd enable inside
dhcpd dns 192.168.0.254


How can a PIX 501 relay client DNS requests out to an internet DNS
server?
I want to specify the PIX outside address, rather than receive it via
dhcp.

Thanks
Nick

 
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Rohan
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      11-18-2006

<(E-Mail Removed)> wrote in message
news:(E-Mail Removed) oups.com...
> router = 10.0.0.254
> pix outside = 10.0.0.1
> pix inside = 192.168.0.254
> client = 192.168.0.1
> client dns = 192.168.0.254
>
> pix config:
>
> ip address outside 10.0.0.1 255.255.255.0
> ip address inside 192.168.0.254 255.255.255.0
> route outside 0.0.0.0 0.0.0.0 10.0.0.254
> dhcpd address 192.168.0.50-192.168.0.90 inside
> dhcpd enable inside
> dhcpd dns 192.168.0.254
>
>
> How can a PIX 501 relay client DNS requests out to an internet DNS
> server?
> I want to specify the PIX outside address, rather than receive it via
> dhcp.
>
> Thanks
> Nick
>

There are many ways to do this and it all depends on how much access you
want between the Inside interface of the firewall to the outside

Based on what you provided above you could write in the following:

access-list DNS permit udp 192.168.0.1 255.255.255.0 any eq 53
global (outside) 1 10.0.0.50-10.0.0.90 netmask 255.255.255.0
nat (inside) 1 access-list DNS



 
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