We have an F5 load balancer that is using round robin algorithum for our two
app servers. We want to get rid of the F5's and use internal DNS round

I'm assuming if i make two RR entries for the DNS entry it will work?

Will the client that goes to app1, always goto app1? how do I set the RR
record to expire?

What happens if app1 is down, will the client goto app2 or hang?