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SonicOS 5.8.1 Administrator Guide
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Transformations and flow analysis (on SonicWALL NSA series appliances): H.323, SIP,
RTSP, ILS/LDAP, FTP, Oracle, NetBIOS, Real Audio, TFTP
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IPS and GAV
At this point, if the packet has been validated as accept
able traffic, it is forwarded to its
destination. The packet egress path includes:
• Encryption
• Encapsulation
• IP fragmentation
On egress, if the route policy lookup determines that the gateway interface is a VLAN
subinterface, the packet is tagged (encapsulated) with the appropriate VLAN ID header. The
creation of VLAN subinterfaces automatically updates the SonicWALL’s routing policy table:
The auto-creation of NAT policies, Access Rules with regard to VLAN subinterfaces behave
exactly the same as with physical interfaces. Customization of the rules and policies that
govern the traffic between VLANs can be performed with customary SonicOS ease and
efficiency.