Design an addressing scheme, using VLSM??

If this has been asked before then I'm sorry. I've been given this question and have been trying all weekend to fig...

IP Subnet Notation?

On a lab to regarding network topology using port scanners, I am instructed "to develop a network inventory and topo...

Two Routers, One Subnet?

I have two Routers and would like one subnet instead of 2, I am using services like upnp for video streaming and the...

When I change the subnet for the LAN interface on a Sonicwall firewall the WAN interfaces go haywire. What should I do??

Our company's old subnet was 255.255.255.0. To adjust for growth we decided to implement a 255.255.248 subnet. Upon...

What does (Preferred), (Tentative) and (Duplicate) mean against an IPv4 Address with ipconfig?

I have been tinkering with subnets and have noticed the above as annotations to the IPv4 line of ipconfig. IPv4 Add...

Why do we need subnet mask??

Since a IPv4 address already gives the information of the network and and host, why do we still need a subnet mask? ...

Accessing different WAN-side subnet?

What is the easiest way (that doesn't involve changing the IP of my terminal or my router) to access a subnet that n...

Why can't my OpenVPN client access machines on same LAN as OpenVPN server??

I have configured OpenVPN on my Linux server and Windows client according to the instructions here. My client can ac...

“Destination port unreachable” when pinging computer in another subnet?

In my home network, I connect to the Internet through a router (192.168.1.1). I also have another router (192.168.1....

Communication possible between 192.168.0.x and 192.168.1.x??

I have a problem I encounter on a regular basis. I have an access point with a fixed 192.168.0.x IP address. My netw...

How to find the VLAN IP address??

How can I find the VLAN IP for a host? I have a Linux machine and as an example my host name is vhtask01 and IP addr...

Why is my subnet mask 255.255.255.255??

I have a modem which used for internet broadband and I got an IP address in the 'A' class 10.x.x.x and have netmask ...

What is a subnet mask, and the difference between a subnet mask of 255.255.255.0 and 255.0.0.0??

My DSL/WiFi router provided by my ISP has an internal IP address of 10.0.0.138, the addresses provided by DHCP are i...

What does (Preferred), (Tentative) and (Duplicate) mean against an IPv4 Address with ipconfig?

I have been tinkering with subnets and have noticed the above as annotations to the IPv4 line of ipconfig. IPv4 Add...