1
My Windows router is set up to use 192.168.16.1/24
as its IP address. I have just added a new IP address: 192.168.18.1/24
. However, I am unable to ping this new IP address from my desktop. I have added 192.168.18.2/24
to my desktop, which is unable to access.
I am also unable to ping 192.168.18.1
from within the server. I can ping 192.168.16.1
with no problems. I have also discovered that I am unable to ping 127.0.0.1
from this machine. This leads me to believe there is a firewall getting in the way. Can anyone suggest a way to debug this? I have tried completely disabling the Windows firewall, but this doesn't seem to have any effect.
As an aside, can you confirm that my use of the slash notation is correct? I believe that saying 192.168.16.1/24
is the same as saying 192.168.16.1
with a subnet mask of 255.255.255.0
. What is the correct name for this notation?
Thank you for your time.
Try disabling and then re-enabling your network connection(s). – Khaled – 2010-11-25T16:40:16.767
Do you have 127.0.0.1 defined in c:\windows\system32\drivers\etc\hosts? Are you trying to assign two IP addresses to a single network card in your PC? How are you adding a second IP to your router? Do you have routes set to send traffic to .16 and .18 subnets? – dmah – 2010-11-25T17:15:47.447
@dmah: 1)
/etc/hosts
can mess up the namelocalhost
but never the address127.0.0.1
. 2) Multiple addresses per interface are valid. – user1686 – 2010-11-25T18:16:15.303