Chuckster Posted July 10, 2015 Posted July 10, 2015 (edited) Hey guys, My school has almost exhausted their current range and the LA have provided us with a new range of 172.18.44.1 - 172.18.47.254 that gives us 1022 hosts on the subnet of 255.255.252.0. How do I go about implementing this alongside our current IP range? I want the two ranges to talk to each other. I was thinking of leaving the current range in purely for servers, switches, printers etc and have the new range purely for laptops, workstations, iPads etc. Any help will be much appreciated. Cheers. Just to add we have 2 x HP 5406zl switches. Edited July 10, 2015 by Chuckster
Michael Posted July 10, 2015 Posted July 10, 2015 You need to create a DHCP Superscope, but to be honest, unless you have more than 1022 hosts there's little point.
Chuckster Posted July 10, 2015 Author Posted July 10, 2015 do your LEA control your router? Yup, they do. You need to create a DHCP Superscope, but to be honest, unless you have more than 1022 hosts there's little point. Our network can only manage 254 IP address, many of which have reservations for printers, servers etc. Therefore we have approx. 150 to dish. We had to get a new range because we'll be having a new building on site with a few labs of computers, and we need the new range to cover this. Also, we'll be getting many more new iPads and Android tablets. At the moment I don't have any VLANS on the switches. So what I need to do is set up a Superscope? What about on the switches - anything need doing on there?
DMcCoy Posted July 10, 2015 Posted July 10, 2015 Put a firewall/router in and do whatever you want? 1
Michael Posted July 10, 2015 Posted July 10, 2015 Yup, they do. Our network can only manage 254 IP address, many of which have reservations for printers, servers etc. Therefore we have approx. 150 to dish. We had to get a new range because we'll be having a new building on site with a few labs of computers, and we need the new range to cover this. Also, we'll be getting many more new iPads and Android tablets. At the moment I don't have any VLANS on the switches. So what I need to do is set up a Superscope? What about on the switches - anything need doing on there? I understand, but have your LA allowed you to use both scopes, or want you to migrate everything to the new scope?
Chuckster Posted July 10, 2015 Author Posted July 10, 2015 The LA have allowed us to use both scopes. In the current scope (172.18.115.1 - 172.18.115.254) I want that to servers, switches and printers. In the new one (172.18.44.1 - 172.18.47.254) I want it to have workstations, laptops, iPads etc. How can I achieve this?
SHimmer45 Posted July 10, 2015 Posted July 10, 2015 in theory they would have updated the router/gateway to allow communication between the differing ranges
Chuckster Posted July 10, 2015 Author Posted July 10, 2015 In theory, yes. However, I want to be able to specify what devices get IP addresses from the two ranges I desire.
Michael Posted July 10, 2015 Posted July 10, 2015 In theory, yes. However, I want to be able to specify what devices get IP addresses from the two ranges I desire. The only way to achieve that is either manual DHCP reservations or VLANs. 1
sted Posted July 10, 2015 Posted July 10, 2015 The LA have allowed us to use both scopes. In the current scope (172.18.115.1 - 172.18.115.254) I want that to servers, switches and printers. In the new one (172.18.44.1 - 172.18.47.254) I want it to have workstations, laptops, iPads etc. How can I achieve this? not sure what your trying to achieve other than needless complexity id just move all the servers/switches into the 172.18.47.xx range use the 44/45/46 for client devices and use your existing range as either a test network or as its entirely logically separated for byod so they cant get to your servers 1
SHimmer45 Posted July 10, 2015 Posted July 10, 2015 we have 3 ranges. 1 is for management - so switches servers printers. ranges 2 & 3 are assigned to our DHCP for the clients to pick up so the DHCP scope include our xxx.xxx.100.xxx xxx.xxx.101.xxx 1
JATSO Posted July 10, 2015 Posted July 10, 2015 I tend to give management, printers, photocopiers, AP's, and NAS static ips and exclude them and some extra from range the rest is up for grabs. 1
IanT Posted July 10, 2015 Posted July 10, 2015 We have a number of seperate vlans: Management (for Switches) Printers Wireless Servers Clients Laptops Access Control You'll need to create the vlan on the core, dhcp scopes on DC, ip helpers on the vlans etc If you need any procurve switching help let me know
joseph707 Posted July 31, 2015 Posted July 31, 2015 Hi Chuckster My suggestions to have a proper IP range a. Create VLANs for every bit i.e Staff, Student (separate it by Grade level, if possible), Guest, Events, IP Phones, Server, Management, CCTV, Access Control. Your printers can be on the same VLAN as the Students computers, staff computers. This would help to create Access Policies for every VLAN i.e Staff at the Primary School with the IP range 10.5.16.x will be able to get facebook access between 10AM-11AM during recess. This won't be the case if a staff in the Senior school is present as ACL (access control lists) is separated. b. Start with a range that is sustainable with /23 per subnet c. See how many devices would be connecting at a given time and also try to simulate the number of devices connecting in 5 years time. Always remember students or staff will have a minimum of 2 devices. Multiple that to the staff/student having access d. Don't go for super scope e. Don't go for anything below /23, a worst case scenario maximum /22. Anything about this is going to create a massive broadcast storm on the network f. Don't go with separating IP scopes. Make them under one scope i.e don't put 172.x.x.x with another range of 10.x.x.x. Keep it constant, less headaches g. When going with /23, first 25 IP should be reserved for various static IP assignments i.e a separate Static IP Printers, Principal etc h. Make sure and this is the most important, Bonjour addressing if using iPads. Because they don't cross over VLANs/subnets, you need to either put a Bonjour Gateway in between to pass traffic so Students on a particular VLAN can see Airplay devices of Staff on another VLAN. I. Like another posts says, have 2 DHCP servers and mention them on the Core, Distribution switches, so if 1 DHCP server, other still addresses it. I hope the above has been useful. Let me know if you would require detailed info. Cheers Joseph
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now