I am a newbie to managing Cisco equipment and I have run into a problem. I need to set up PAT for a small office with only 1 public IP address. I have not had any luck despite using multiple articles, and chapters in CISCO books.
The router is an 870 series with a switch attached to the fastethernet0 port. I am attaching my current configuration, so could someone please look over it and tell me what I am doing wrong,
Here is what you need to get this working. First I don't understand why you are trying to bridge on the FastEthernet4 interface. Here is what you should do to get this working:
1. Under FastEthernet4 remove the bridge-group
ip address 38.100.xx.xx 255.255.255.248
ip nat outside
no bridge-group 2
2. Get rid of the BVI interface. This is only necessary when bridging between the Wireless interface and a vlan for the wireless clients. Its not necessary here.
no interface BVI2
3. This needs to be removed and you need to add FastEthernet4 to it.
ip nat inside source list 1 interface FastEthernet4 overload
4. Modify the ACL, this is redundant and the last line covers it all.
no access-list 1
access-list 1 permit 192.168.0.0 0.0.0.255
You have to hook the WAN connection to Fa4 for this to work. I assume you know that. You also do not have DHCP so you have to statically assign the DNS and IP addresses.