load balancing adsl and t1 line on PIX515dmz

[ddicky]

Is it posibble to load balance an adsl dial-up without fixed IP address and T1 line with IP addresses provided under a PIX515DMZ,how many outside ports and inside port do I need,PIX version,pls advise

[scoclayton]

Not sure I fully understand what you are asking but it sounds like you are asking if it is possible to load balance your outbound connections across two seperate pipes? If so, this would be possible using OSPF Equal Cost Multi Path (ECMP). Essentially this works by having both internet routers advertise a default route to the PIX. The PIX installs both routes and then uses an algorithm to determine which path to send the traffic. You may need to work this out with your ISP(s) and install BGP routes on the internet routers to advertise out your address space. And you will need at 6.3 code on your PIX to pick up OSPF support. Hope this helps.

Scott