Justifying Routing at the Edge

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Expand view Topic review: Justifying Routing at the Edge

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by cialis generic name » Mon Jan 04, 2021 12:22 pm

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Re:Justifying Routing at the Edge

by Guest » Mon Nov 27, 2006 6:29 am

jhancockuwic wrote:   Ok, thanks Jon. I want you to know that I really appreciate your help with this. Giving up you time to help other people (me) is rare these days. Kind regards, Jamie Jamie No problem, glad to have helped. Thats what good about NetPro and why i continue to use it in that there a lot of people on these forums with great knowledge and experience who are only too happy to share that with other people. Any other questions/problems don hesitate to come back. Jon

Re:Justifying Routing at the Edge

by Guest » Mon Nov 27, 2006 5:49 am

  Ok, thanks Jon. I want you to know that I really appreciate your help with this. Giving up you time to help other people (me) is rare these days. Kind regards, Jamie

Re:Justifying Routing at the Edge

by Guest » Mon Nov 27, 2006 4:43 am

jhancockuwic wrote:   I guess you have your DHCP servers in the server farm and use IP HELPER on thevlan interface to get over the broadcast boundary? Jamie Jamie Yes you do. You really only need 2 DHCP servers for redundancy and then on each L3 vlan interface you would configure an ip helper-address. Key to doing this well is to get the planning correct. Take your time planning it and look for any gotchas. Key things to be aware of 1) do any of the devices in your vlan at present need L2 adjacency ie. they need to be able to broadcast to each other for an application to work. This is rare these days and it can be worked around but something to check. 2) Hardcoded IP addresses. Hopefully you haven got them but it needs checking ie. some device has a hardcoded IP so it knows which server etc. to talk to. Again, rare these days but still needs checking. Having said that if you stick with the current addressing but just split it up most of the IP addresses could stay the same on the devices. The only issues you may get is where the IP address of an existing device suddenly becomes the broadcast address for example of your new smaller subnet. If you make sure when you get these that it is a PC rather than a device with a hardcoded address you should avoid problem 2 above. Jon

Re:Justifying Routing at the Edge

by Guest » Mon Nov 27, 2006 4:31 am

  I guess you have your DHCP servers in the server farm and use IP HELPER on thevlan interface to get over the broadcast boundary? Jamie

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