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VPN using Cisco 2811 - 20.Aug.2008 8:00:19 AM

adgroup

Posts: 130
Joined: 11.May2006
Status: offline

hi

We are using ISA 2004 with latest Service pack on windows 2003 with SP2. clients are of windows xp and 2000. Firewall client and default gate is configured on all clients. default gateway of clients is the ip address of the internal NIC of ISA.
ISA server has two lan cards installed. one is connected with internal network and other is connected with DSL modem. The default gateway of ISA external LAN card is the IP address of DSL.
Internal network is on 10.0.0.0 and network between ISA and dsl is 192.168.0.0.
Now we have deployed CISCO 2811 in our network.
CISCO 2811 has two Network interfaces. First is connected with internal i-e 10.0.0.0 and 2nd is connected with DSL 192.168.0.0. The default gateway of cisco 2nd Interface is the ip address of DSL modem. SITE-to-SITE VPN settings are configured on CISCO 2811 router.
Internet is working properly without any issue.

Implementation:
1.) we want that, if ISA receives the traffic from any client to 172.16.0.0 and 192.168.1.0 it should forward that traffic to CISCO router but not to DSL modem. All other traffic should be forwarded to DSL modem.

confusion:
We have configured DMZ on the DSL modem, and specify the ip address of ISA external NIC. will it effect the VPN traffic from cisco router to remote branch and vice versa.?
Urgent reply will be highly appreciated.

ADG

Post #: 1

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RE: VPN using Cisco 2811 - 21.Aug.2008 1:12:29 AM

adgroup

Posts: 130
Joined: 11.May2006
Status: offline

any help

Adg

(in reply to adgroup)

Post #: 2

RE: VPN using Cisco 2811 - 25.Aug.2008 12:32:34 AM

adgroup

Posts: 130
Joined: 11.May2006
Status: offline

any help

adg

(in reply to adgroup)

Post #: 3

RE: VPN using Cisco 2811 - 18.Sep.2008 5:59:15 PM

Nicomaco

Posts: 23
Joined: 8.Nov.2007
Status: offline

Hi ADG. configure 2 statics routes on the ISA server that redirect all the trafic to 172.16.0.0 and 192.168.1.0 to the CiSCO.

Add the subnets 172.16.0.0 and 192.168.1.0 to the internal interface of the ISA server.

I implement exactly de same configuration an its works fine in my work.

byee

(in reply to adgroup)

Post #: 4