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Licensing Requirements and Limitations for NAT
Hardware Requirements
This section is applicable to all models. For details about differences for specific models, see the description in the corresponding section.
Feature Limitations
By default, the route forwarding function is enabled on 8FE1GE and 24GE cards. These cards do not send received IP packets to the CPU when the IP packets are forwarded on a LAN card. In this way, NAT services configured on VLANIF interfaces do not take effect.
Currently, routers can perform NAT for IPv4 addresses only.