03-14-2008 05:39 AM - edited 03-03-2019 09:08 PM
Hi,
I have a cisco 2811 with two HWIC-1ADSL cards. I have configured Static Nat / Port Forwarding on my Router. The port is forwarded to the Local Webserver. The problem is that the Mapping works fine until the my Webserver redirects the traffic to another Port. Once my Internal Webserver redirects the traffic to some other port the mapping stops working. Here is the running configuration of my router.
interface FastEthernet0/0
ip address 192.168.0.200 255.255.255.0
ip nat inside
ip virtual-reassembly
ip route-cache flow
ip tcp adjust-mss 1452
ip policy route-map CYBER-ROUTE
duplex auto
speed auto
!
interface ATM0/1/0
no ip address
no atm ilmi-keepalive
dsl operating-mode auto
pvc 0/35
encapsulation aal5snap
pppoe-client dial-pool-number 2
!
!
interface Dialer2
ip address negotiated
ip mtu 1492
ip nat outside
ip virtual-reassembly
encapsulation ppp
shutdown
dialer pool 2
ppp pap sent-username habib1 password 0 habib1
!
ip route 0.0.0.0 0.0.0.0 Dialer2
!
ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip nat inside source list 1 interface Dialer2 overload
ip nat inside source static tcp 192.168.0.2 8888 202.38.58.54 8888 extendable
ip nat inside source static tcp 192.168.0.2 9080 202.38.58.54 9080 extendable
!
access-list 1 permit 192.168.0.0 0.0.0.255
Thanks.
03-15-2008 09:13 AM
The problem is that the Mapping works fine until the my Webserver redirects the traffic to another Port. Once my Internal Webserver redirects the traffic to some other port the mapping stops working
Well ......
ip nat inside source static tcp 192.168.0.2 8888 202.38.58.54 8888 extendable
ip nat inside source static tcp 192.168.0.2 9080 202.38.58.54 9080 extendable
You are only covering 2 TCP ports for the webserver. If those ports change, the webserver will use dynamic NAT. It's working as you've configured.
HTH,
__
Edison.
03-16-2008 11:07 PM
Well, the thing is that the WebServer is redirection the request to a JReport Server which is listening on Port 8888 and those reports are not opening.
Thanks.
03-17-2008 06:49 AM
They are not opening from the webserver? If so, does the connection from the webserver to the JReport Server involves NAT?
At the moment, you only have a static NAT for 192.168.0.2, is this the webserver?
If the JReport server holds another IP address, that address isn't included in the NAT.
__
Edison.
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