Which of the following descriptions about GRE are correct ? ( Choose one or more )
A . bearing carrier lP head is lP protocol number 47 identifies the GRE header
B . the GRE with the Ethernet protocol type 0 x0806 identified load package for lP
C . GRE VPN can transmit multicast data
D . adopted using IP over IP of GRE encapsulation, the public network and private network interfaces may not coincide with the address
Answer: ACD
Explanation:
0x0800
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