How do I set up routing to route static IP's?

  • Thread starter Thread starter Sterling
  • Start date Start date
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Sterling

I have a block of static IP's on a DSL connection routing through a Cisco
678. They are 166.70.105.144-160 netmask 255.255.255.240 (I think that is
the range anyway).

My DSL Modem is 166.70.105.145, my external interface has
166.70.105.146/147. I am natted to 10.0.0.x just fine on one internal
interface. I want to route my other static IP's through the ISA server on my
third ethernet card.

So I guessed that I install RRAS and give the third interface an ip of
166.70.105.148. I want client computers on this segment to be statically
assigned some of my public IP addresses.

I can't figure out exactly how to configure the third interface or RRAS to
route in and out of the external interface.

Any help would be appreciated!
 
No, don't do it that way. RRAS does not like having multiple NICs in the
same subnet. And it fouls up your default routing.

The standard method is to allocate the pool of addresses to the public
interface in NAT, and then configure NAT do the rest.
 
Ok. So I should just set up my external interface with 166.70.105.146 and
the default gateway of 166.70.105.145.

Then my DMZ network interface should have the address of 166.70.105.148 and
no default gateway.

Then should I expect automatically that any clients with the address of say
166.70.105.149-159 will route correctly through the DMZ interface to the
external interface?

It seems like that won't work and requires me to do something more...

In ISA it is a big no-no to configure the LAT with public addresses.
 
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