I am looking at solutions for a branch office. Currently it has an ADSL connection, coming into an ASA 5505. There are site to site vpns, some client vpn traffiic. Office is 10 users. We have a need to add more bandwidth but getting a T1 is cost prohibitive at the moment. So I've added a second DSL line. I need another device to perform some type of load balancing or traffic shaping as the 5505 cannot do that. The 2nd DSL line is going to be reserved for one application or user.
I am choosing between the 881 and 1921. Obviously the 1921 is a better device but is is overkill for this scenario? Would I still use the 5505 as a firewall regardless. Seems like neither device could replace the ASA firewall capabilities. There also remains the possibility of going to a T1 down the line, maybe a year or so.