When should you enable Network Address Translation Transparency (NAT-T) on the Teleworker?（）
- A、when a router between the Teleworker router and the head-end VPN router is doing NAT/pNAT and does not support IPSec pass-through
- B、when the Teleworker router itself is doing NAT/pNAT
- C、always
- D、never
正确答案:A
答案解析:有
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