As per my understanding on NONAT satement in Firewall( up to IOS version6.3) is,,,,
If any packet traverse from Higher secuity to lower security--permitted by default r by ACL
If any packet traverse from Lower secuity to Higher security need to be allowed with ACL and NAT(for Higher interface ip)...If we doesnt do NAT need to do NONAT in the higher interface..
IS that above statments are correct?..Plese correct me if i m wrong..
Thanks in advance