aalbert69
asked on
Cisco 877 ADSL w/5 Static IPs, how to have source IP come from static IP and not the Dialer Interface
I currently have a Cisco 877 router configured for 5 IPs, but when you send requests to hosts, it shows the dialer interface IP (dynamic IP) instead of the static IP. Everything else works fine, but I run into issues when dealing with certain applications (where I want to limit the incoming traffic on another router, or with Postini, etc), and it reports the Dialer0 IP.
What is the best method to configure this router, so that I can have the proper source IP reported back to the hots that it is hitting (or at least 1 of the static IPs).
!
interface BVI1
description $ES_LAN$$FW_INSIDE$
ip address 192.168.2.1 255.255.255.0 secondary
ip address 20.21.22.23 255.255.255.248
ip nat inside
interface Dialer0
description $FW_OUTSIDE$
ip address negotiated
ip nat outside
What is the best method to configure this router, so that I can have the proper source IP reported back to the hots that it is hitting (or at least 1 of the static IPs).
!
interface BVI1
description $ES_LAN$$FW_INSIDE$
ip address 192.168.2.1 255.255.255.0 secondary
ip address 20.21.22.23 255.255.255.248
ip nat inside
interface Dialer0
description $FW_OUTSIDE$
ip address negotiated
ip nat outside
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You want your BVI1 ip's to be used when you connect to remote hosts?
This isn't possible when using NAT, as your client IP will be replaced with your Dialer0 IP adddress.
You must purchase a block of routable IP's from your ISP and allow the 877 to route all traffic through. Then your client IP will be kept the same all the way through your network.