(I hope this is the proper place to post a NAT/routing question; if not, please move or let me know)
Some time back, I successfully configured a 2811 to do NAT. I am having difficulty with an 1811 router using the same config.
Here is the 2811 config that successfully performed NAT from our private to public:
(I've removed everything except the critical information)
interface FastEthernet0/0
ip address [public ip] 255.255.255.240
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip virtual-reassembly
duplex half
speed auto
no mop enabled
!
ip nat pool [name] [public ip] [public ip] prefix-length 30
ip nat inside source list 1 pool [name] overload
ip route 0.0.0.0 0.0.0.0 [public gateway]
!
access-list 1 permit 192.168.1.0 0.0.0.255
Here is the 1811 config that will not do NAT:
interface FastEthernet0
ip address [public ip] 255.255.255.240
ip nat outside
ip virtual-reassembly
speed auto
half-duplex
!
interface FastEthernet1
ip address 172.16.1.1 255.255.255.224
ip nat inside
ip virtual-reassembly
speed auto
half-duplex
!
ip route 0.0.0.0 0.0.0.0 [public gateway]
!
ip nat pool [name] [public ip] [public ip] prefix-length 30
ip nat inside source list 1 pool [name] overload
!
access-list 1 permit 172.16.1.1 0.0.0.31
IOS version on the 1811 is:
Version 12.3(8r)YH12
Any help/advice is appreciated
