Failover DNS

[tech]

Is there a product from Cisco that provides failover DNS services? I do not want load balancing, only failover. If one ISP connection went down, I would like to be able to automatically redirect requests to Internet enabled servers to another ISP and a different IP subnet via DNS.

Thanks,

RJ

[spremkumar]

Hi

Assuming u require CLI to configure in ur router for DNS failover ,u can make use of the below mentioned statements in router config mode.

Once the first server is unavailable then the request will automatically go to the second DNS server ip address mentioned.

ip name-server x.x.x.x

ip name-server y.y.y.y

regds

prem

[a.awan]

If i understand your question correctly, you have web servers (or other internet enabled servers) whose DNS records you would like to be updated dynamically in case your primary link to the internet fails and the backup takes over? Are you running each service on two IP Addresses or are you using multiple servers?

I do not think that Cisco has any such solution, at least i am not aware of any. I just did a google on dns failover and i found an online service providing a functionality somewhat similar to what you require.

http://www.dnsmadeeasy.com/s0306/prod/dnsfo.html

I might have misunderstood your question completely as i think it was a little vague but i hope this helps.

[tech]

You understand my question correctly. I came across this site as well. This would accomplish what I need.

Thanks for your input.

RJ

[a.awan]

No prob. Let us know how it works out for you.

[tech]

If we implement I will surely post the results.

RJ