topic Re: NAT help in Network Security

NAT help

whiteford — Mon, 11 Mar 2019 14:57:22 GMT

Hi,

I have a cisco ASA 5520 and connected as a trunk I have a Cisco 3750 with a VLAN for our WAN office.

This remote WAN office has a router which uses DHCP relay back to our LAN where the ASA is, we don't manage the router and have to pay money for any change (silly or what).

ANyway I need to change the DHCP server they point to and thought I Could NAT the one the point to now to the new one, is this possibe?

I did try add a NAT what it didn't work.

Re: NAT help

vikram_anumukonda — Thu, 26 Feb 2009 12:24:14 GMT

if the relay configuration on the router is pointing to the real ip-address of your DHCP server - Natting will not help.

a rough diagram would be helpful to understand your requirement.

-Vikram

Re: NAT help

whiteford — Thu, 26 Feb 2009 13:20:09 GMT

"if the relay configuration on the router is pointing to the real ip-address of your DHCP server - Natting will not help. "

This is exactly what I'm doing.

I will try and get a diag done. Basically:

LAN

ASA - 3750-(VLAN7) - Remote WAN

Router

Internet

Re: NAT help

vikram_anumukonda — Fri, 27 Feb 2009 07:33:18 GMT

Well then you will have to pay do get the change done on router this time.

Re: NAT help

whiteford — Fri, 27 Feb 2009 08:11:39 GMT

fair enough