Routing problem

ISP provide me with two IP address for ADSL router ( linksys G-ADSL )
158.113.224.10 subnet 255.255.255.255 for ADSL assign automatically on router by ISP
158.113.224.30 subnet 255.255.255.255 to add to firewall network interface
 ADSL router have private IP address 192.168.2.1 255.255.255.0 with NAT enable

I need to connect ADSL router to firewall .
I will assign the following IP address to eth 2 on Firewall :
158.113.224.30 255.255.255.255
with sub interface as eth2.1 192.168.2.2 255.255.255.0 .
what static route I should add on ADSL router to be able to forward traffic from firewall to ADSL router then to internet

can you help
salmaaloufAsked:
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wynandkunkelCommented:
If NAT is enabled, you cannot add the public IP (158.113.224.30) to the firewall because the ADSL router is "hiding" the private (192.168.2.1 255.255.255.0) network behind it.

I would assign an address of 192.168.2.2 to Eth2 on the firewall and the configure the ADSL router (if it has the function) to make the firewall the DMZ host, i.e. it will pass all traffic that it cannot "handle" to the firewall.

With regards to routing, the PC's on the inside on the firewall cobnnected to Eth1 (which will have to be on a different network again e.g. 192.168.3.0 255.255.255.0) will then have the Firewall as the Default gateway.  It turn the Firewall will have the ADSL router as it's Default Gateway.  The ADSL router will have it's gateway assigned by the ISP.
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salmaaloufAuthor Commented:
I will disable NAT on ADSL router .
Forget about PC its not important .
IF I put IP address 192.168.2.1 255.255.255.0 on eth 2 of firewall with public IP address 158.113.224.30  255.255.255.255.

ADSL router already have public IP address assign by ISP 158.113.224.10 255.255.255.255
on WAN side with IP address 192.168.2.2 255.255.255.0  on LAN side.

what static route I should add to routing table of ADSL router to forward traffic from firewall to ADSL router
Note : ADSL router connect directly to Firewall through Ethernet cable no other connection between .
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wynandkunkelCommented:
As per the attached file, you could try to add the following route to the ADSL router.  Th eroute will look like this (if written in "Windows" notation):

route add 158.113.224.30 MASK 255.255.255.255 192.168.2.1 -p

I do however have doubts whether it will work.Visual representation of config
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pergrCommented:
The proposal above is correct

Network 158.113.224.30 MASK 255.255.255.255 nexthop 192.168.2.1
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salmaaloufAuthor Commented:
I am able to add the static route now I am checking with local ISP to ensure my gateway IP address .

Thanks
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wynandkunkelCommented:
Hi Netminder,

I am not satisfied with the points allocation.

Regards,

Wynand
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