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Is it possible to communicate in the network without using DHCP server?
A Windows-based computer that is configured to use DHCP can automatically assign itself an Internet Protocol (IP) address if a DHCP server is not available. For example, this could occur on a network without a DHCP server, or on a network if a DHCP server is temporarily down for maintenance.
What is my public static IP?
IP Address TerminologyEdit Static means the IP address never changes as long as you stay with the same provider or same server. Dynamic means the IP address can change from time-to-time. Public means the IP address can be reached via the Internet from any computer in the world.
Can a computer assign itself an IP address without a DHCP server?
A Windows-based computer that is configured to use DHCP can automatically assign itself an Internet Protocol (IP) address if a DHCP server is not available. For example, this could occur on a network without a DHCP server, or on a network if a DHCP server is temporarily down for maintenance.
Can a network be connected without a DHCP server?
Your network is connected to the Internet without a NAT or proxy server. Unless you have disabled DHCP-related messages, DHCP messages provide you with notification when you change between DHCP addressing and automatic private IP addressing.
Where can I find the IP address of a DHCP server?
If you get an IP address, you’ve got a rogue. If you have a Linux handy, the standard dhcpclient tells you the IP address of the DHCP server (else you can sniff the traffic to see where the DHCP response came from).
Can you Snoop on a rogue DHCP server?
However, I’d recommend looking into DHCP Snooping support on your network. This feature will provide constant protection from rogue DHCP servers on the network, and is supported by many different hardware vendors. Here’s the feature set as indicated in the Cisco docs.