Cisco failover wireless

[Grep]

Hi guys

Dont know if anyone has experience in this but you never know. I current have a Mikrotik RouterOS device connected on either side of 2 LAN's set in bridge mode. Everything works and is all good. I have just installed a 2MB leased line and about to chuck down 2 x 1601's.

We are running data off the wireless link and VOIP over the leased line and getting past this with VLAN's. Everything is good cept I want to now have a wireless failover if the wireless link goes down to reroute via the leased line.

I have a 3600 in stock but wonder if anyone has done this before and can give me some tips.

Fanks!

 

[Roman4604]

Everything is good cept I want to now have a wireless failover if the wireless link goes down to reroute via the leased line.

Unfortunately bridging/switching is not smart enough to do this automatically, you're going to have to move to a routed architecture.

Not clued up enough about the Mikrotiks to know if they could do it? The professional way to do it would be to get 2 Cisco 1841s each with a WIC-1T (possibly could use the 3600 on one end depending on its config). Setup would look/operate as follows on each end ...

1. 1st Ethernet configured as trunk with 2 routing sub-interfaces to terminate/route each Vlan
2. 2nd routed Ethernet port connected to Mikrotik wireless bridge
3. Leased line connected to routed serial port
4. VoIP VLan traffic policy routed down serial port
5. IP SLA monitor configured to ping opposite end 2nd Ethernet IP (via wireless)
6. Data Vlan traffic routed down 2nd Ethernet (to wireless) via static route with low metric. This route would track IP SLA monitor
7. Additional static route down serial port with high metric would route data Vlan down leased line should the IP SLA Mon fail (which would remove the 1st low metric route).

 

[Grep]

Hi Roman

Actually got this working last night. Put my 3600 in play and setup IP nat inside and outside and it worked ..... pulled out the wireless link and the cisco 1601 became the gateway.

Obviously had to setup a couple static routes, but ya, all is good

thanks