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Internal DHCP on C9800 for Wired Client?

SPKV
Beginner
Beginner

Hi,

If create Internal DHCP on C9800 for Wireless, It also distributes IP DHCP to wired clients in same vlan. Can it be disabled IP DHCP to distributed to wired clients?

Thank you so much.

1 Accepted Solution

Accepted Solutions

marce1000
VIP
VIP

 

 - Consider setting up DHCP services as mentioned in https://www.cisco.com/c/en/us/products/collateral/wireless/catalyst-9800-series-wireless-controllers/guide-c07-743627.html#DHCPbridgingandDHCPrelay  ; then you only need one DHCP service on the wireless/wired intranet (too) , 

 M.



-- ' 'Good body every evening' ' this sentence was once spotted on a logo at the entrance of a Weight Watchers Club !

View solution in original post

2 Replies 2

marce1000
VIP
VIP

 

 - Consider setting up DHCP services as mentioned in https://www.cisco.com/c/en/us/products/collateral/wireless/catalyst-9800-series-wireless-controllers/guide-c07-743627.html#DHCPbridgingandDHCPrelay  ; then you only need one DHCP service on the wireless/wired intranet (too) , 

 M.



-- ' 'Good body every evening' ' this sentence was once spotted on a logo at the entrance of a Weight Watchers Club !

Rich R
VIP
VIP

You should be using the same DHCP server(s) for wired and wireless.

So if you already have a server for wired then why not use that for wireless too?

If you have more than one server serving the same subnet then make sure the IP ranges they're serving do not overlap otherwise you could end up with duplicate IP problems.

------------------------------
TAC recommended codes for AireOS WLC's   and   TAC recommended codes for 9800 WLC's
Best Practices for AireOS WLC's   and   Best Practices for 9800 WLC's
Cisco Wireless compatibility matrix
Field Notice: FN-63942 APs and WLCs Fail to Create CAPWAP Connections Due to Certificate Expiration
Field Notice: FN-72424 Later Versions of WiFi 6 APs Fail to Join WLC - Software Upgrade Required
Field Notice: FN-72524 - During Software Upgrade/Downgrade IOS APs Might Remain in Downloading State
     after 4 Dec 2022 Due to Certificate Expiration - Fixed in 8.10.185.3 and latest 9800 IOS-XE releases
     also fixed in 8.5.182.11 (8.5 mainline) and 8.5.182.108 (8.5 IRCM) if you can't upgrade to 8.10
     TAC confirmed that Mobility Express AP TFTP download is not affected so ME 8.5.182.0 still works but see FN-74035 below
Field Notice: FN-70479 Out-Of-The-Box AP Fails to Join WLC or Joins with Single Radio due to Country Mismatch - RMA required
How to avoid boot loop due to corrupted image on Wave 2 and Catalyst 11ax Access Points (CSCvx32806)
Field Notice: FN-74035 - Wave2 APs DFS May Not Detect Radar After Channel Availability Check Time
     fixed in 8.10.185.3 and see the field notice for 8.5, Mobility Express and other fixed releases
Check your WLC config with Wireless Config Analyzer using "show tech wireless" output (9800) or "config paging disable" then "show run-config" output (AireOS) and use Wireless Debug Analyzer to analyze your WLC client debugs
Leo Laohoo's list of bugs affecting 2800/3800/4800/1560 APs
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