topic Re: Poison ARP issue on Wireless controller in Wireless https://community.cisco.com/t5/wireless/poison-arp-issue-on-wireless-controller/m-p/723084#M149677 <HTML><HEAD></HEAD><BODY><P>This could be caused due to having DHCP Required enable under the wlan.</P></BODY></HTML> Mon, 09 Jul 2007 17:18:23 GMT murabi 2007-07-09T17:18:23Z Poison ARP issue on Wireless controller https://community.cisco.com/t5/wireless/poison-arp-issue-on-wireless-controller/m-p/723083#M149676 <P>I have configured a wireless LAN controller and am having issues with clients obtaining an IP address via DHCP. </P><P>The access points (1131AG) pickup an IP address from the DHCP server without a problem, the clients connect to the wireless network ok, but fail to get and IP address assigned, the error on the wireless controller is as follows </P><P>"Jul 02 10:01:17.036 dtl_net.c:1191 DTL-1-ARP_POISON_DETECTED: STA [00:19:d2:b2:0d:fa, 0.0.0.0] ARP (op 1) received with invalid SPA 172.17.7.4/TPA 172.17.7.1" </P><P>Can some one tell me anything about this error ? </P><P>Any help would be greatly appreciated </P> Sat, 03 Jul 2021 21:17:32 GMT https://community.cisco.com/t5/wireless/poison-arp-issue-on-wireless-controller/m-p/723083#M149676 mbonnamy 2021-07-03T21:17:32Z Re: Poison ARP issue on Wireless controller https://community.cisco.com/t5/wireless/poison-arp-issue-on-wireless-controller/m-p/723084#M149677 <HTML><HEAD></HEAD><BODY><P>This could be caused due to having DHCP Required enable under the wlan.</P></BODY></HTML> Mon, 09 Jul 2007 17:18:23 GMT https://community.cisco.com/t5/wireless/poison-arp-issue-on-wireless-controller/m-p/723084#M149677 murabi 2007-07-09T17:18:23Z