We recently procured an 1811 router to replace a SOHO linksys at a store we service. We needed redundant WAN interfaces to use the DSL as a backup to the main cable connection, and a Linksys RV082, while doing the job when it actually worked, died repeatedly. We decided after looking at the 1811's feature set to just get the Cisco and be done with it and not monkey with SOHO gear anymore.
Where I'm having difficulty is SDM won't let me configure both WAN interfaces from the GUI, it only allows me to configure one. I have it configured, and the router is working nicely in the test lab but I need to get that other interface configured and failover enabled before I can put this thing into production.
What am I doing wrong? Do I need to suck it up and learn IOS?
Do you want to configure the analog modem interface as your backup WAN connection?
I hope you have configured one of the Fast Ethernet Interface as a WAN connection.
What is the exact problem you are facing in SDM? Is it throwing any error message when configuring the backup WAN or is it that the backup WAN interface is not at all listed in SDM?
I ended up figuring out the IOS commands to enable one fastethernet port as a primary and the other one as a backup (running both cable and DSL for redundancy; it's a grocery store that runs electronic transactions over IP so 100% availability is a must).
The trouble I was running into in SDM is that while it would allow me to configure one WAN port through the GUI, the config options for the second one were grayed out. Now that both are configured through IOS the edit buttons for both WAN interfaces appear normally in SDM. It's almost as if Cisco didn't want users to be able to configure both interfaces graphically for initial setup.
Now just to test it at the site before the store opens to see if the failover works...
I'm trying to set up an 1811 with redundant or backup links as you were. I would prefer redundant links. Is it possible for you to send me the configuration you used?
I would GREATLY appreciate it !! I've been banging my head against this router for days...
Can't find a config example on Cisco for this type of setup.
Have a good one !
CCNA, MCSE, MCP+I
I'm fighting to get an 1811 configured in a similar way. Would you mind sharing your configuration with me?
No, I never received a working config.
I have an open service request at Cisco.
They can't get it going either.
If you have a config that actually does
load sharing / redundancy, I would be EXTREMELY gratefull.
My customer is loosing patience ..
CCNS, MCSE, MCP+I
I'm having the same problem. Seems that each TAC person hits a roadblock getting redundancy+NAT working together, and the callbacks are getting further apart.
Here I have a PRIMARY link to satalite via FE0 and a cell modem backup via FE1. SLA monitors the reachability via icmpechos to the other end of my satalite link. I had to adjust the timeout to 2500ms as to accomidate the satalite and # of users. NATS via the route-maps. Be Sure To Rate if this helps!