cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
523
Views
0
Helpful
2
Replies

Dual isp failover nat problem not able to get outside from lan

alovelyparadox
Beginner
Beginner

So basically I'm installing this new 3845 router.  

1 Accepted Solution

Accepted Solutions

cadet alain
Mentor
Mentor

Hi,

Your NAT config is correct. Can you specify the route to secondary ISP as a backup route by setting a higher AD so all traffic is sent to the primary ISP to test.:

ip route 0.0.0.0 0.0.0.0 192.168.1.1  10

Now ping 8.8.8.8 from a host in your LAN and post output of sh ip nat translations, if it is empty then  verify you can ping 8.8.8.8 from the router and tell us what happens.

Regards

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.

View solution in original post

2 Replies 2

cadet alain
Mentor
Mentor

Hi,

Your NAT config is correct. Can you specify the route to secondary ISP as a backup route by setting a higher AD so all traffic is sent to the primary ISP to test.:

ip route 0.0.0.0 0.0.0.0 192.168.1.1  10

Now ping 8.8.8.8 from a host in your LAN and post output of sh ip nat translations, if it is empty then  verify you can ping 8.8.8.8 from the router and tell us what happens.

Regards

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.

Good eye Alain.  This indeed fixed my issues.   I changed to ip route 0.0.0.0 0.0.0.0 192.168.1.1 10 set up dhcp and my users are online.   Thanks for all your help.

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Recognize Your Peers