clynch302
asked on
Changing LAN IP from 192.168.1.x to 172.16.x.x
So my company wants to change the internal LAN from a 192.168.1.x to a 172.16.x.x. Since this would be the first time doing such a thing I am looking for conformation/guidance.
We are looking at separating servers form printers from network devices. Like have the servers on a 172.16.10.x mask 255.255..0.0, and printers on a 172.16.15.x mask 255.255.0.0 and so forth... Is this ok? Any downfalls from this? We are not a huge company and all our systems are in one location so physical access is not an issue.
What do you guys think??
We are looking at separating servers form printers from network devices. Like have the servers on a 172.16.10.x mask 255.255..0.0, and printers on a 172.16.15.x mask 255.255.0.0 and so forth... Is this ok? Any downfalls from this? We are not a huge company and all our systems are in one location so physical access is not an issue.
What do you guys think??
ASKER
How would that affect DHCP clients? If I set up a DHCP scope of 172.16.20.x 255.255.255.0 traffic would be good between the subnets? I was thinking of using 255.255.252.0 to decrease the size.
depends on what you want to do... base your mask configuration on this:
Network mask Available subnets Usable hosts per subnet Total usable hosts
255.255.255.0 1 254 254
255.255.255.128 2 126 252
255.255.255.192 4 62 248
255.255.255.224 8 30 240
255.255.255.240 16 14 224
......
Network mask Available subnets Usable hosts per subnet Total usable hosts
255.255.255.0 1 254 254
255.255.255.128 2 126 252
255.255.255.192 4 62 248
255.255.255.224 8 30 240
255.255.255.240 16 14 224
......
ASKER
I wish I paid more attention in subnetting class. I guess what I am trying to do is have the following
Servers - 172.16.1.x
Printers - 172.16.2.x
DHCP scope 1 - 172.16.3.x
DHCP scope 2 - 172.16.4.x
OR..
Servers/printers - 172.16.1.x
DHCP scope 1 - 172.16.2.x
DHCP scope 2 - 172.16.3.x
I would like to have the entire 254 usable host per subnet.
I hope this makes sense... I know I have a hard time wrapping my head around it.
Servers - 172.16.1.x
Printers - 172.16.2.x
DHCP scope 1 - 172.16.3.x
DHCP scope 2 - 172.16.4.x
OR..
Servers/printers - 172.16.1.x
DHCP scope 1 - 172.16.2.x
DHCP scope 2 - 172.16.3.x
I would like to have the entire 254 usable host per subnet.
I hope this makes sense... I know I have a hard time wrapping my head around it.
:) you got me kinda confused for a moment....
in either case... your scopes have to include the range of your subnets...
let;s see... case 1.... I'm assuming your routers configuration will see both subnets
Servers - 172.16.1.x 255.255.255.0
range 172.16.1.1 - 172.16.1.254
254 hosts
Printers- 172.16.2.x 255.255.255.0
range 172.16.2.1 - 172.16.2.254
254 hosts
case 2... the same... no router configuration... everything in the same range
Servers/printers - 172.16.1.x 255.255.255.0
range 172.16.1.1 - 172.16.1.254
254 hosts
in either case... your scopes have to include the range of your subnets...
let;s see... case 1.... I'm assuming your routers configuration will see both subnets
Servers - 172.16.1.x 255.255.255.0
range 172.16.1.1 - 172.16.1.254
254 hosts
Printers- 172.16.2.x 255.255.255.0
range 172.16.2.1 - 172.16.2.254
254 hosts
case 2... the same... no router configuration... everything in the same range
Servers/printers - 172.16.1.x 255.255.255.0
range 172.16.1.1 - 172.16.1.254
254 hosts
ASKER
Wouldn't using 255.255.255.0 put 172.16.1.x and 172.16.2.x on separate networks? I would then need to configure my router to route between networks, correct?
If I use 255.255.252.0 the 172.16.0.1 - 172.16.3.254 would be all on the same network right?
If I use 255.255.252.0 the 172.16.0.1 - 172.16.3.254 would be all on the same network right?
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
@ clynch302:
About your 1st question… yes… they are different networks and will need to configure router
2nd q. yes… everything on that range is on the same network… but you will be wasting a lot of IP’s
About your 1st question… yes… they are different networks and will need to configure router
2nd q. yes… everything on that range is on the same network… but you will be wasting a lot of IP’s
ASKER
Thank you.
So then your networks would be:
Servers 172.16.10.0 255.255.255.0
Printers 172.16.15.0 255.255.255.0
Because your company is relatively small, having a 16 bit subnet mask would be unneccessary.