Application Port Number
FTP 20-21
Telnet 23
SMTP 25
DNS 53
TFTP 69
HTTP 80
POP3 110
NTP 123
Microsoft RPC 135
NetBIOS 137-139
1. LDAP 389
2. HTTPS 443
1. IP V6 Basics
2. IP V4 uses 32-bit addressing, which generates up to 4,294,967,296
addresses. As the use of technology has
3. increased exponentially over the years, however, the IP V4 addresses are
being depleted. To create more
4. address space, IP V6 was introduced.
5. IP V6 uses 128bit addressing, which generates a massive address space of
655,570,793,348,866,943,898,5
99. Let’s see what an IP V6 address looks like:
XXXX: XXXX: XXXX: XXXX: XXXX: XXXX: XXXX: XXXX
XXXX can range from 0000 to ffff, so an IP V6 address has eight places
separated by seven colons:
2002:db8:0:1:1:1:1:1