M-SEARCH found the following (length 438 bytes):
HTTP/1.1 200 OK
CACHE-CONTROL: max-age=1800
DATE: Tue, 21 Nov 2023 19:32:53 GMT
EXT:
LOCATION: http://192.168.0.1:49153/IGDdevicedesc_brlan0.xml
OPT: "http://schemas.upnp.org/upnp/1/0/"; ns=01
01-NLS: 2f4379a0-88a0-11ee-94ec-86845e9bdfd5
SERVER: Linux/4.9.135-Prod_19.3, UPnP/1.0, Portable SDK for UPnP devices/1.6.22
X-User-Agent: redsonic
ST: upnp:rootdevice
USN: uuid:ebf5a0a0-1dd1-11b2-a90f-021018951e6c::upnp:rootdevice
M-SEARCH result:
<?xml version="1.0"?>
<root xmlns="urn:schemas-upnp-org:device-1-0">
<specVersion>
<major>1</major>
<minor>0</minor>
</specVersion>
<device>
<deviceType>urn:schemas-upnp-org:device:InternetGatewayDevice:1</deviceType>
<friendlyName>CGA6444VF</friendlyName>
<manufacturer>Technicolor</manufacturer>
<manufacturerURL>http://www.technicolor.com/</manufacturerURL>
<modelDescription>Docsis 3.1 Gateway</modelDescription>
<modelName>CGA6444VF</modelName>
<modelNumber>1.0</modelNumber>
<modelURL>http://www.technicolor.com</modelURL>
<serialNumber></serialNumber>
<UDN>uuid:ebf5a0a0-1dd1-11b2-a90f-021018951e6c</UDN>
<UPC>CGA6444VF</UPC>
<serviceList>
<service>
<serviceType>urn:schemas-upnp-org:service:Layer3Forwarding:1</serviceType>
<serviceId>urn:upnp-org:serviceId:L3Forwarding1</serviceId>
<SCPDURL>/Layer3ForwardingSCPD.xml</SCPDURL>
<controlURL>/upnp/control/Layer3Forwarding</controlURL>
<eventSubURL>/upnp/event/Layer3Forwarding</eventSubURL>
</service>
</serviceList>
<deviceList>
<device>
<deviceType>urn:schemas-upnp-org:device:WANDevice:1</deviceType>
<friendlyName>WANDevice:1</friendlyName>
<manufacturer>Technicolor</manufacturer>
<manufacturerURL>http://www.technicolor.com/</manufacturerURL>
<modelDescription>Docsis 3.1 Gateway</modelDescription>
<modelName>CGA6444VF</modelName>
<modelNumber>1.0</modelNumber>
<modelURL>http://www.technicolor.com</modelURL>
<serialNumber></serialNumber>
<UDN>uuid:ebf5a0a0-1dd1-11b2-a92f-021018951e6c</UDN>
<UPC>CGA6444VF</UPC>
<serviceList>
<service>
<serviceType>urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1</serviceType>
<serviceId>urn:upnp-org:serviceId:WANCommonIFC1</serviceId>
<SCPDURL>/WANCommonInterfaceConfigSCPD.xml</SCPDURL>
<controlURL>/upnp/control/WANCommonInterfaceConfig0</controlURL>
<eventSubURL>/upnp/event/WANCommonInterfaceConfig0</eventSubURL>
</service>
</serviceList>
<deviceList>
<device>
<deviceType>urn:schemas-upnp-org:device:WANConnectionDevice:1</deviceType>
<friendlyName>WANConnectionDevice:1</friendlyName>
<manufacturer>Technicolor</manufacturer>
<manufacturerURL>http://www.technicolor.com/</manufacturerURL>
<modelDescription>Docsis 3.1 Gateway</modelDescription>
<modelName>CGA6444VF</modelName>
<modelNumber>1.0</modelNumber>
<modelURL>http://www.technicolor.com</modelURL>
<serialNumber></serialNumber>
<UDN>uuid:ebf5a0a0-1dd1-11b2-a93f-021018951e6c</UDN>
<UPC>CGA6444VF</UPC>
<serviceList>
<service>
<serviceType>urn:schemas-upnp-org:service:WANIPConnection:1</serviceType>
<serviceId>urn:upnp-org:serviceId:WANIPConn1</serviceId>
<SCPDURL>/WANIPConnectionServiceSCPD.xml</SCPDURL>
<controlURL>/upnp/control/WANIPConnection0</controlURL>
<eventSubURL>/upnp/event/WANIPConnection0</eventSubURL>
</service>
</serviceList>
</device>
</deviceList>
</device>
</deviceList>
<presentationURL>http://192.168.0.1/</presentationURL></device>
</root>
UPnP device is available at http://192.168.0.1:49153/upnp/control/WANIPConnection0
Internal IP: 192.168.56.1
External IP: 31.18.189.13
Status: Connected
Last error: ERROR_NONE
Uptime router: 0 days 0 hours 0 minutes and 0 seconds
Error SetPortMapping
ResultCode: 500
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<s:Fault>
<faultcode>s:Client</faultcode>
<faultstring>UPnPError</faultstring>
<detail>
<UPnPError xmlns="urn:schemas-upnp-org:control-1-0">
<errorCode>402</errorCode>
<errorDescription>PAL_UPNP_SOAP_E_INVALID_ARGS</errorDescription>
</UPnPError>
</detail>
</s:Fault>
</s:Body>
</s:Envelope>
Error SetPortMapping
ResultCode: 500
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<s:Fault>
<faultcode>s:Client</faultcode>
<faultstring>UPnPError</faultstring>
<detail>
<UPnPError xmlns="urn:schemas-upnp-org:control-1-0">
<errorCode>402</errorCode>
<errorDescription>PAL_UPNP_SOAP_E_INVALID_ARGS</errorDescription>
</UPnPError>
</detail>
</s:Fault>
</s:Body>
</s:Envelope>