I want to implement...

Hardware MikroTik hardware general
1

Heres what I want to do…

532A Board.

1 ethernet port connecting to 3M bonded t1 coming off ethernet of a cisco 2600, 1 ethernet port connecting to DSL (static ip). 1 ethernet port going to lan.

Link Aggregation & Load Balance
Run VRRP between two 532A units for failover.
Run firewall and nat.
Run DNS server and have it respond on either wan connection (t1 or dsl). and provide either round robin or priority for DNS responses, based on link staus. Most likely, dns responses pointing to t1 ips unless down. QoS for voip.
Session binding / Link Persistence (so same link is used for user once connection is established)


Can this be done ? Without any headache, once configured properly.

2

Load balancing and VRRP? Not very vise! If you want load balancing, then you should write custom scripts to check if link is ok or down. Or use VRRP without load balancing.

Also RouterOS does not have DNS server, it has only DNS cache.

3

I want the 532 (router os) to do load balancing on the two internet connections. I want to use vrrp to failover to another in case the 532 takes a dump. What would this have to do with load balancing ?