CODEWITHSUNDEEP
javasocketsip
User_X220
User_X220

Reputation: 53

ServerSocket IP addr = ::/::

While debugging my ServerSocket object, I got this expression ServerSocket[addr=::/::,localport=32882]. What does the ::/:: address mean please?

Upvotes: 0

Views: 79

Answers (1)

Pratik Ambani
Pratik Ambani

Reputation: 2570

::(consecutive colons) is used when you have all zeros in the whole block.

Example: 2001:0db8:85a3:0000:0000:8a2e:0370:7334

Refer Wikipedia for IPV6 Addresses

One or more consecutive groups of zero value may be replaced with a single empty group using two consecutive colons (::),1 but the substitution may only be applied once in the address, because multiple occurrences would create an ambiguous representation.

The example address can be further simplified: 2001:db8:85a3::8a2e:370:7334

Considering your case, IP Address contains all zeros(i.e. 0.0.0.0)

Upvotes: 1

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