I have an 827 ADSL router connected to my DSL service provider. Before I had this router, I had a linksys router providing all the NAT and port forwarding functions. Right now I have NAT configured for all my internal computers to translate to my static ISP provided IP address. And I also have NAT translating outside requests for tcp port 80 to my internal web server. This works well except that the web server has a firewall and blocks the request because the source address is an outside address (Internet). I remember on the old linksys router, the firewall would not block this request because it looked like a request from the Ethernet or internal IP address. Maybe this is a security flaw with linksys products, but I was wondering if anyone has a suggestion for me to get around the problem. Below is the configuration on the router, minus secure information:
ip address 192.168.0.1 255.255.255.0
ip nat inside
ip address X.X.X.1 255.255.252.0
ip nat outside
ip nat inside source list 101 interface ATM0 overload
To permit traffic to your webserver, you will need to configure an acl and permit traffic to tcp port 80. Apply this acl inbound on the ATM interface. (note - there is an implicit deny any any at the end of the acl so you will have to permit all the traffic through your acl that you want or else it will be denied)
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
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