ā03-22-2013 10:05 PM - edited ā03-07-2019 12:26 PM
Hi all,
I am kabeer,I have configured Cisco 1841 router PAT buts its not worked please find the below configuration details,
In LAN interface
Interface gigabit Ethernet 0/0
no shutdown
Ip address 192.168.1.1 255.255.255.0
Ip nat inside
Exit
In wan interface
Interface gigabit Ethernet 0/1
No shutdown
Ip address 202.100.x.x 255.255.x.x
Ip nat outside
Exit
Access-list 1 permit 192.168.1.0 0.0.0.255
Ip nat inside source list 1 interface gigabit Ethernet 0/1 overload
Similarly I have configured static and dynamic nat but its not works in my customer place.
So kindly provide the solution for this issue.
Thanks and Regards,
Kabeer
ā05-08-2013 09:56 PM
Asalaam Kabeer, I think the problem is that maybe your IP address on your WAN interface and your static route is incorrect.
When you plug your laptop in, is it in dhcp client mode? When you do ipconfig what information do you see on the laptop?
If DHCP is enabled on the laptop, that means we need to enable DHCP on the router instead of static ip configuration and static default route.
On your WAN interface
Conf t
Interface fa0/1
IP address DHCP
!
No ip route 0.0.0.0 0.0.0.0 202.200.x.x
You should let your router pick up address automatically if this is the case.
Please confirm this.
Hope this helps
Sent from Cisco Technical Support iPhone App
ā05-08-2013 10:15 PM
Config looks great. How about you create a pool of one:
ip nat pool NET 202.100.x.x 202.100.x.x netmask 255.255.x.x
ip nat inside source list 1 pool NET overload
ā05-08-2013 10:19 PM
Why would you need a nat pool for the WAN? This still won't work if the IP address of the interface is wrong and also the default route.
The NAT statement is fine
Sent from Cisco Technical Support iPhone App
ā05-08-2013 11:11 PM
Hi,
Your nat configuration is fine.in access list better to use extended acl, check the outside ip address from the isp and make sure you have the connectivity to the gateway of the isp and the internet . When you ping from the router your source should be outside ip of the router. If itās working try to ping outside any public ip from the source of inside ip of the router. If ping not reaching gateway from the outside ip then check with isp.
If you are able to ping any public ip using inside ip of the router , again internet is not working for the users then configure dns.
Config ex.
Int f0/0
Ip nat inside
Int f0/1
Ip nat outside
access-list 110 permit ip any any
ip nat inside source list 110 interface f0/1 overload
ip route 0.0.0.0 0.0.0.0 f0/1
ip name-server x.x.dnsip.x
static nat :
ip nat inside source static tcp x.x.insideip.x 3389 interface f0/1 3389
Regadrs,
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