very quick and simple question!

K

kwmarc

Limp Gawd
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Aug 26, 2003
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In order to allow an outside vpn connection to see my shared folders off of my internal ip address, i had to change the subnet mask of my linksys router. I changed it to some other subnet (one besides 255.255.255.0) to i believe 255.255.255.254? Anyways, i can no longer simply punch in "192.168.1.1" in IE to bring up the router console. I can still connect to the internet, a new DHCP address was assigned to my machine.

Any ideas as to why i cannot connect to the linksys now? It shows the address of the default gateway/router to be 192.168.1.1? However, after changing subnets, i can no longer see it. hmmmmmmmm?
 
Originally posted by kwmarc
In order to allow an outside vpn connection to see my shared folders off of my internal ip address, i had to change the subnet mask of my linksys router. I changed it to some other subnet (one besides 255.255.255.0) to i believe 255.255.255.254? Anyways, i can no longer simply punch in "192.168.1.1" in IE to bring up the router console. I can still connect to the internet, a new DHCP address was assigned to my machine.

Any ideas as to why i cannot connect to the linksys now? It shows the address of the default gateway/router to be 192.168.1.1? However, after changing subnets, i can no longer see it. hmmmmmmmm?
Click to expand...

You shouldn't have had to change the subnet mask at all, from what you are describing with the initial problem of an outsider not accessing your machine, I am going to infer they (outsider) were probably using the same network addressing you were. e.g. 192.168.1.x with a subnet mask of 255.255.255.0.

Reset your router to the defaults and ensure everything is working correctly on your end for Internet, then either you change your IP addressing or the other person needs to change their IP addressing so you both are on different subnets.... eg. if your using 192.168.1.x then they need to use something else besides that range.
 
I thought you could have the same address scheme such as 192.168.1.x, but it had to be a different subnet? So you are saying that if i change my home machine to an address of 192.168.0.x i will be able to access any shares on the outside machine and i will not need to change the subnet at all?
 
Originally posted by kwmarc
I thought you could have the same address scheme such as 192.168.1.x, but it had to be a different subnet? So you are saying that if i change my home machine to an address of 192.168.0.x i will be able to access any shares on the outside machine and i will not need to change the subnet at all?
Click to expand...

I'm not understanding where your going with stating "i will be able to access any shares on the outside machine", but with the subnet mask you were using (255.255.255.254) was totally useless as it limited each subnet to two IPs.

If you want to use the same IP addressing scheme 192.168.1.x with diffferent subnet masks, one of you are still going to need to readdress your machines.

example
using 192.168.1.x with subnet mask of 255.255.255.128 would net having two subnets, each with a total of 128 addresses.

One of you would use 192.168.1.1 thru 192.168.1.126, the other end would use 192.168.1.129 thru 192.168.1.254.

The other method I gave you allows for using a full Class C address at each endpoint. e.g. location one uses 192.168.0.x and location two uses 192.168.1.x both with subnet masks of 255.255.255.0.


What are you using to setup a VPN?
 
I am using the windowsXP pro built in vpn software. But, i think we are drawing away from the main point of this thread, which was to understand why i could no longer type in the ip address of the router after i changed the subnet? Thanks for the help!
 
Originally posted by kwmarc
I am using the windowsXP pro built in vpn software. But, i think we are drawing away from the main point of this thread, which was to understand why i could no longer type in the ip address of the router after i changed the subnet? Thanks for the help!
Click to expand...

When you placed the subnet mask of 255.255.255.254 into your router, your router was then placed on a subnet with only *two* ip addresses of 192.168.1.0 thru 192.168.1.1

If my calculations are correct 192.168.1.0 is the actual subnet (unusable by any device) and 192.168.1.1 became a *broadcast* address for that particular subnet which is also unusable by any device.

Since neither of the two addresses can be used by devices and since your computer had an IP address *outside* of the routers subnet you could not access the router.

Ya really need to study about sub-netting more before playing around with the network masks.
 
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