The current IP address scheme of 32-bit words is fast becoming inadequate. It would appear that 2 32 = 4 294 967 296 combinations of addresses should be enough for everybody, but in practice this is ...

A typical User Datagram Protocol/Internet Protocol (UDP/IP) header contains 20 bytes of IP header and eight bytes of UDP header. While UDP headers contain source and destination UDP port addresses, ...

You've installed a VPN. It's not quite as fast as you'd like. You could switch to another service, but maybe there's a simple speedup trick you can try first. Open ...

This excerpt is from CCIE Voice Exam Quick Reference Sheets (Digital Short Cut), by Mark Lewis and published by Cisco Press. ISBN-10: 1-58705-333-0 Read Mark Lewis’ blog for Cisco Subnet here. More ...

The benefits of IPv6 over IPv4 are many, but to reap them enterprises need to enable their networks to support the newer protocol, starting with Wi-Fi upgrades. The business advantages of IPv6 are ...

Build Your Skills: Learn why NAT can cause VPN connection problems Your email has been sent Why network address translation (NAT) on an Internet router keeps the VPN client from making the connection ...