06-17-2015 05:00 AM - edited 03-08-2019 12:35 AM
Hi
i work in a company and i have to change a modem router f@st 3304 by cisco c887w
i put this configuration in the cisco router and i can navigate to internet when im directly connected to the C887w
but when i put it with the firwall fortigate i can't navigate from the inside
----dialer0-C887W-(192.168.1.1)-------192.168.1.50 PC ITWORKS
---dialer0-C887W--(192.168.1.1)-----192.168.1.50-Fortigate-10.10.10.2-----10.10.10.4-TMG-172.16.0.1------172.16.1.2-PC Doesn't work
here is my config
- See more at: https://supportforums.cisco.com/discussion/12535621/little-problem-c887#sthash.IrN4LWNT.dpuf
06-17-2015 04:23 PM
Hi,
Which device is doing the NAT? 887 only or 887 and Fortigate? Is the doing TMG doing proxy for the clients? Check you NAT and routing config.
Thanks
John
06-17-2015 04:27 PM
Hi
TMG is doing NAT
887 is doing NAT
fortigate is may be doing nat, can you please tell me what to do in the case if fortigate is doing the NAT and if not ?
06-17-2015 04:55 PM
Hi,
Assuming the fortigate is not doing NAT, you will need to add a static route on the 887 for the 10.10.10.0 network pointing to the fortigate 192.168.1.5. e.g. assuming 10.10.10.0 is a /24
ip route 10.10.10.0 255.255.255.0 192.168.1.50
thanks
John
06-17-2015 04:57 PM
Hi John
and if it is doing nat ? the first configuration must work ?
thank you
06-17-2015 05:09 PM
Hi,
If fortigate is doing NAT, then from the TMG you should be able to connect to the Internet.
Thanks
John
06-17-2015 05:14 PM
Hi again
Thank you very much john
i will try and tell you the result
thx again
06-19-2015 07:32 AM
Hi
the fortigate is doing nat...
thx
06-22-2015 02:47 PM
Im connected from the inside to the internet but still have slow connection any suggestions please.?
06-17-2015 04:32 PM
Hi
yes TMG is a proxy for the client and the TMG use NAT when they go to the internet
im not sure about the fortigate but can you telle me what to do please in the two cases (fortigate doing nat or not doing it).
thanks a lot
06-19-2015 05:12 AM
I think i have a DNS probelm when i connect the fortigate to the cisco router
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide