I have two pix 515e firewalls running v7.2(3). They have a similar setup. On one pix outside has a small /29 ip block which routes a /25 and a /27. I've setup two static rules to allow traffic from a lower interface to higher levels. This works no problem. On the other pix however the setup is pretty much the same, with two exceptions. The ip block on outside is /30 And I making use of several VLANs. Strangely enough I don't need to setup required static rules for this to work. No nat is used I am using public ip addresses.
Can anybody explain why this is ?
Thanks in advance,