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Ask Me Anything – How to Enable Network Connectivity to Remote Workers
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Contributor

DHCP mandatory vs static IPs

On a 5508 running the latest code, If I select DHCP mandatory on the Advanced page for a given WLAN, does that stop a client from using a static IP address, or are those two compatible such that they can coexist? I mean, if a client is set up with a static IP and on a DHCP scope that has exclusions for those static reservations, would the controller allow the client to reach the run state?

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Highlighted
VIP Advocate

Re: DHCP mandatory vs static IPs

If you select this, the WLC should drop all the packets unless the client succeeded in getting an address by DHCP.
You will get roaming issues if you enable this function, if you have several WLC though, so I advice against it.

If you need static addresses on some clients, add them as "fixed addresses" on the DHCP server, so that they always get the same address by the DHCP.

View solution in original post

Highlighted
VIP Advocate

Re: DHCP mandatory vs static IPs

I've enabled http Profiling under local client profiling, that seems to work good enough for me.

It's anyway better to do that on the DHCP or Radius server, if they provide those options.


View solution in original post

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VIP Mentor

Re: DHCP mandatory vs static IPs

If the clients are roaming , i would prefer DHCP Dynamic, until any special requirement and there is move of the device all time.

 

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Highlighted
VIP Advocate

Re: DHCP mandatory vs static IPs

If you select this, the WLC should drop all the packets unless the client succeeded in getting an address by DHCP.
You will get roaming issues if you enable this function, if you have several WLC though, so I advice against it.

If you need static addresses on some clients, add them as "fixed addresses" on the DHCP server, so that they always get the same address by the DHCP.

View solution in original post

Highlighted
Contributor

Re: DHCP mandatory vs static IPs

So if you want to profile devices and cannot use DHCP required as it forces
you to select for profiling, then no profiling is possible?
Highlighted
VIP Advocate

Re: DHCP mandatory vs static IPs

I've enabled http Profiling under local client profiling, that seems to work good enough for me.

It's anyway better to do that on the DHCP or Radius server, if they provide those options.


View solution in original post

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