# Revision history [back]

Hi,

I found the mistake. If you want to send a packet through an interface/port and this packet has an ip/mac different from the interface/port one, you need to provide a new ip/mac pair to the interface/port settings. You can to this either with python-neutronclient or by using the REST api.
Rest example:
REST Endpoint for updating a port:
https://XX.XX.XX.XX:XXXX/v2.0/ports/<port-id>
JSON-Body:

{
"port": {
]
}
}


Hi,

I found the mistake. If you want to send a packet through an interface/port and this packet has an ip/mac different from the interface/port one, you need to provide a new ip/mac pair to the interface/port settings. You can to this either with python-neutronclient or by using the REST api.
Rest example:
REST Endpoint for updating a port:
https://XX.XX.XX.XX:XXXX/v2.0/ports/<port-id> URL:neutronPort/v2.0/ports/<port-id>
JSON-Body:

{
"port": {