03-14-2008 05:42 AM - edited 03-03-2019 09:08 PM
Hi,
I want to know can i configure Multiple Public IP's with Secondary command on a Single Interface. Both the IP's are of different ISP's.
Thanks.
03-14-2008 05:48 AM
Haris,
Yes you can,but its depends upon how you are controlling the traffic.
Goutam
03-14-2008 05:59 AM
Well here's the overview of my scenario. Basicially i have two ADSL WAN connections both with Public IP's. Both the ISP's have given me Public IP pools. Now I want to utilize my Public IP's by Publishing my Webserver, but I want it Published on both the IP Pools. Can you guide me how to configure it?
03-14-2008 06:10 AM
Haris,
Are you thinking to publish the Web server Live? Suggesting you to put the server after any security device (ASA/PIX etc.) by NATing with private IP. Also you have two deferent ISP with live IP pool. If you terminate both in a single router (deff interface and/or same interface) and if some how the router starting malfunctioning then you will be in a big trouble. Think redundancy always.
Best of Luck.
Goutam
03-14-2008 06:21 AM
Well the problem is that I have tried NAT but its not working. I have also posted another problem with the topic Problem with NAT in Cisco 2811. Due to that problem I want to do this as an alternative. Further more I have a backup ADSL Modems, and I am terminating both the ADSL Connection on Different ADSL Cards. If my NAT problem is resolved if wouldn't need to publish them with the Public IPs.
Thanks.
03-14-2008 06:23 AM
Here is the actual post.
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.
03-14-2008 06:32 AM
you have commands pointing to your Dialer 2 interface and it is shutdown?
03-14-2008 06:27 AM
ethernet 0/0
ip address 10.1.1.1 255.255.255.0
ip address 10.2.2.1 255.255.255.0 secondary
This will give you both subnets on the interface.
If your server has 2 nic's then assign an IP on both public's as well as DNS entries for both.
As mentioned in previous posts this is not the recommended method but is a direct answer to your question.
03-14-2008 06:29 AM
Can your resolve the problem that I have posted in my last post regarding NAT?
Thanks.
03-14-2008 10:16 AM
Sorry I posted the configuration with the interface shutdown. But I have checked it with interface up, the Webserver is opening but the redirection is not working. Here is the correct Running Config.
interface FastEthernet0/0
ip address 192.168.0.200 255.255.255.0
ip nat inside
ip virtual-reassembly
ip tcp adjust-mss 1452
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
dialer pool 2
ppp pap sent-username xx password xxx
!
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 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
The 9080 is the port on which the webserver is running. The 8888 port is the one on which the Webserver redirects when opening some reports. I am getting the problem that when Request from the Internet comes to port 9080 the router redirect the traffic perfectly, however, when my Internal Webserver redirects specific requests to port 8888, the router fails to redirect the traffic to port 8888.
Thanks.
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