If you need to check from which IP address the VNC connection has been established and other details, please log in to the selected node, view /var/log/messages and find the line pattern:
N accepting connection from
For example, where x.x.x.x is the IP address:
Mar 3 14:23:09 vhs socat[353584]: N accepting connection from AF=2 x.x.x.x:63200 on AF=2 x.x.x.x:5906
Mar 3 14:23:09 vhs socat[353584]: N forked off child process 355424
Mar 3 14:23:09 vhs socat[353584]: N listening on AF=2 0.0.0.0:5906
Mar 3 14:23:09 vhs socat[355424]: N opening connection to AF=10 [0000:0000:0000:0000:0000:0000:0000:0001]:5906
Mar 3 14:23:09 vhs socat[355424]: N successfully connected from local address AF=10 [0000:0000:0000:0000:0000:0000:0000:0001]:42824
Mar 3 14:23:09 vhs libvirtd: 2022-03-03 11:23:09.353+0000: 5557: info : qemuMonitorLogEventThrottled:1386 : vm=vm-1, mon=0x7f545c153fd0 event=VNC_CONNECTED data={"server":{"auth":"vnc","family":"ipv6","service":"5906","host":"::1","websocket":false},"client":{"family":"ipv6","service":"42824","host":"::1","websocket":false}}
Mar 3 14:23:09 vhs socat[355424]: N starting data transfer loop with FDs [7,7] and [5,5]