IPv6 address has 128 bits written in 8 blocks of hex numbers like this:

• IPv6 address has 128 bits written in 8 blocks of hex numbers like this:

• 2001:0000:0B80:0000:0000:00D3:9C5A:00CC

• Four zeroes can be eliminated like this:

• 2001::0B80:0000:0000:00D3:9C5A:00CC
• Or this:
• 2001:0000:0B80::00D3:9C5A:00CC
• The second method is preferred