How to make the internal network and external network can ping each other-CodePudding

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How to make the internal network and external network can ping each other

Time：10-03

I think it is ok to do port mapping, but two servers can ping succeed, could you tell me how to get inside and outside the network server unicom

CodePudding user response:

ICMP is a network layer protocol, you do port mapping is the transport layer, can, of course, if you want to ping or want 2 do routing,
If you simply want to test, using Telnet, try another basic knowledge or recommend brushing up..

CodePudding user response:

Learning,!!!!!!!!!!

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