+ Post New Thread
Results 1 to 8 of 8
Wired Networks Thread, Help with setting up 2nd DHCP Scope SWGFL in Technical; Hi Guys, Wondering if someone would be kind enough to help me out. Ive just found out we have an ...
  1. #1

    Join Date
    Jul 2012
    Location
    Swindon
    Posts
    35
    Thank Post
    11
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    Help with setting up 2nd DHCP Scope SWGFL

    Hi Guys,
    Wondering if someone would be kind enough to help me out.

    Ive just found out we have an additional range of ips available to our site, great news!

    We have an LEA switch (cisco 2950) which provides the feed coming in, apparently we have only been using Port 1 (admin range), Port 2 (curric range) is not patched in but according to the local LEA and the grid is ready to go.

    How would I go about adding the additional scope into DHCP?

    My current scope (admin range is) 10.x.x.x with a subnet of 255.255.255.0 and works fine, how would I go about adding the new scope which is 10.x.x.x.x with a subnet of 255.255.252.0?

    Im confused about what I would set as the default gateway and dns servers of the second scope, would I use my exisiting default gateway and dns settings?

    Sorry if this doesnt make much sense, Im aware of how to create and authorize the scope just dont have the knowledge for dealing with multiple ip ranges

    Thanks

    Mike

  2. #2

    3s-gtech's Avatar
    Join Date
    Mar 2009
    Location
    Wales
    Posts
    3,104
    Thank Post
    161
    Thanked 655 Times in 588 Posts
    Rep Power
    169
    Are the two ranges you've been given consecutive, e.g. 10.214.250.0 and 10.214.251.0?

  3. #3

    Join Date
    Jul 2012
    Location
    Swindon
    Posts
    35
    Thank Post
    11
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    Hi,
    The ranges are;
    10.74.202.x and 10.43.40.x if that helps?

    Thanks

    Mike

  4. #4

    Join Date
    Oct 2008
    Location
    Lincolnshire
    Posts
    2,345
    Thank Post
    13
    Thanked 240 Times in 228 Posts
    Rep Power
    70
    If that was me and unable to get another range from the LA, what I would do is install a firewall, use a 10 address as such as an external IP and then NAT things if needed, its how we do things on the NHS N3 network.

  5. Thanks to MatthewL from:

    SWICT (29th November 2012)

  6. #5
    Boredguy's Avatar
    Join Date
    Jun 2011
    Location
    Swindon
    Posts
    727
    Thank Post
    5
    Thanked 158 Times in 147 Posts
    Rep Power
    56
    Any reason for not just moving all your machines across to the curriculum range instead of trying to link the 2 together. It might be the easier route, and means you get access to 4 times the number of IP addresses than you currently have available.

  7. Thanks to Boredguy from:

    SWICT (29th November 2012)

  8. #6

    Join Date
    Jul 2012
    Location
    Swindon
    Posts
    35
    Thank Post
    11
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    Im thinking that may be the way to go to be honest as looking into it sounds like its going to be a nightmare to try and setup.

    Do you think it would be easier to setup a new dhcp server and decomm the old one?

    Thanks to everyone for your replies, much appreciated

    Mike

  9. #7
    Boredguy's Avatar
    Join Date
    Jun 2011
    Location
    Swindon
    Posts
    727
    Thank Post
    5
    Thanked 158 Times in 147 Posts
    Rep Power
    56
    It's not just the DHCP you would need to update, there is also your static IP's on your domain controllers and the DNS.

    It's certainlythe simplier route in the long run.

  10. #8
    saihaynes's Avatar
    Join Date
    Nov 2007
    Posts
    23
    Thank Post
    3
    Thanked 3 Times in 3 Posts
    Rep Power
    15
    Boredguy has provided a valid solution and is right youd need at the very least to change static ips, dns etc

    Would need a few more details about your specific setup but from experience there are a few ways round this;

    1. Since you are virtualized you could easily assign a second nic with the second scope options configured

    2. Using the single NIC and configuring the NIC of the DHCP server with addresses on
    *both* subnets (e.g. 255.255.255.0 and 255.255.252.0), and then enable IP routing on the machine.

    3. Plugging in a second switch fed from Port 2 of the Cisco unit and then create vlans to route the traffic

    Of course there are pros and cons to each and everybody has their own opinion on the 'best' way to do things, but food for thought

    SWICT and boredguy which Swindon schools are you guys from?
    Last edited by saihaynes; 29th November 2012 at 02:54 PM.



SHARE:
+ Post New Thread

Similar Threads

  1. Bit of help with setting up Bring Your own devices
    By alfatec in forum Internet Related/Filtering/Firewall
    Replies: 5
    Last Post: 1st February 2012, 01:03 PM
  2. help with back up drive
    By mikeymike in forum Hardware
    Replies: 7
    Last Post: 25th November 2008, 11:02 AM
  3. Replies: 4
    Last Post: 10th May 2008, 02:32 PM
  4. Replies: 13
    Last Post: 9th August 2006, 02:08 AM
  5. Help with setting up a domain on a Donated HP Netserver
    By tickmike in forum Wireless Networks
    Replies: 11
    Last Post: 13th July 2006, 11:28 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •