What is the specification of NAT that NE20 supports?
1. Address pool specification: Each NAT board can configure 128 address pools, each address pool has 256 public network addresses at most and each address supports 64K port.
2. Internal server specification: Each NAT baord can configure 32 internal servers at most.
3. Concurrent communication specification: Each NAT board can support 256K concurrent communication at most.
4. New communication rate specification: the maximum new communication rate: 128K/second.