Geo vision - set network gateway not working correctly about device-onvif-camera HOT 3 OPEN

Set network default gateway does not work on Hikvision-DS-2DE2A404IW-DE3 camera as well. Gives invalid ip address error (even if try to update with same/existing gateway ip address).
{
"apiVersion": "v2",
"message":"request failed, status code: 500, err: {"apiVersion":"v2","message":"error writing DeviceResourece NetworkDefaultGateway for HIKVISION-DS-2DE2A404IW-DE3-099f4000-4d50-11b4-82c8-c06ded544d95 -> failed to execute write command, <nil> -> failed to execute the request for the function 'SetNetworkDefaultGateway' of web service 'Device'. Onvif error: fault reason: Invalid address, fault detail: set ip error, fault code: env:Sender ter:InvalidArgVal ter:InvalidGatewayAddress","statusCode":500}",
"statusCode": 500
}

attached is api output screenshot on hikvision camera

from device-onvif-camera.

Update:
On hikvision camera, setting up network gateway works correctly after changing api body to below

{
"NetworkDefaultGateway": {
"IPv4Address": "192.168.1.2"
}
}

from device-onvif-camera.

Issue reproducible with V3 code

from device-onvif-camera.