https://community.cisco.com/t5/network-access-control/coa-request-and-ack/m-p/3076548#M22862 <P>Hi,</P> <P></P> <P>Do you now if CoA ACK message must use the same source IP address than the CoA request destination IP address ?</P> <P></P> <P>In my case ISE send a CoA request to the IP address 192.168.1.100 and the switch answers (CoA ACK) with another source IP address. &nbsp;</P> <P></P> <P>In the logs I have this message :</P> <P></P> <P>11213 No response received from Network Access Device after sending a Dynamic Authorization request</P> <P></P> <P>I am working with Third Party Devices....</P> <P></P> <P>Thank you</P> <P></P> <P></P> <P></P> <P></P> <P></P> <P></P> Mon, 11 Mar 2019 07:42:49 GMT Thibault BRISSE 2019-03-11T07:42:49Z https://community.cisco.com/t5/network-access-control/coa-request-and-ack/m-p/3076548#M22862 <P>Hi,</P> <P></P> <P>Do you now if CoA ACK message must use the same source IP address than the CoA request destination IP address ?</P> <P></P> <P>In my case ISE send a CoA request to the IP address 192.168.1.100 and the switch answers (CoA ACK) with another source IP address. &nbsp;</P> <P></P> <P>In the logs I have this message :</P> <P></P> <P>11213 No response received from Network Access Device after sending a Dynamic Authorization request</P> <P></P> <P>I am working with Third Party Devices....</P> <P></P> <P>Thank you</P> <P></P> <P></P> <P></P> <P></P> <P></P> <P></P> Mon, 11 Mar 2019 07:42:49 GMT https://community.cisco.com/t5/network-access-control/coa-request-and-ack/m-p/3076548#M22862 Thibault BRISSE 2019-03-11T07:42:49Z