Changing DNS and Gateway address on pix firewall

[rmrahman0302]

How to change DNS address and Gateway address on pix 501. Any idea.

Thanks

[scoclayton]

I assume you are referring to changing the DHCP options that are handed out to the client from the PIX. If this is not the case, let me know.

DNS - 'dhcpd dns dns1 [dns2]'

Gateway - you cannot set this in the DHCP options on the PIX. The PIX DHCP server assumes that the PIX is the gateway and will always use it's local interface as the gateway.

Scott

[rmrahman0302]

Customer is changing the ISP, That's why I need to change the IP address,DNS address and Gateway address.

Thanks

[sachinraja]

hi rahman

you can change the ip address directly with the command

ip address outside x.x.x.x 255.255.255.0

Gateway of the PIX can be changed by changing the default route:

route outside 0.0.0.0 0.0.0.0 x.x.x.y

you can set the DNS IP on your DHCP server to propagate it to the clients, either on PIX (as scott pointed) or on ur windows based server.. If there are no DHCP servers, you need to change it on the PCs manually.. you need not do anything on the PIX for this...

Raj