Hello folks,
I am trying to install a rule in the switch that changes ip_proto of a
packet. For example from UDP to TCP. However, it does not work, once I
add the set_field ip_proto in the actions the rules does not get
installed in the ovs switch` (version 2.5.90).
To do that I am using the REST API provided in the ryu source code.
For example the code below should change from udp to tcp, right? Am I
doing something wrong?
{
"dpid": 1,
"cookie": 1,
"cookie_mask": 1,
"table_id": 0,
"idle_timeout": 0,
"hard_timeout": 0,
"priority": 100,
"flags": 1,
"match":{
"in_port":1, "udp_src":2, "udp_dst":10, "ipv4_src":"1.0.1.2",
"ipv4_dst":"1.0.3.2", "ip_dscp":0, "eth_type":2048, "ip_proto":17
},
"actions":[
{
"type": "SET_FIELD",
"field": "ipv4_src",
"value": "10.10.10.10"
},
{
"type": "SET_FIELD",
"field": "ipv4_dst",
"value": "1.0.3.2"
},
{
"type": "SET_FIELD",
"field": "tcp_src",
"value": 20
},
{
"type": "SET_FIELD",
"field": "tcp_dst",
"value": 25
},
{
"type": "SET_FIELD",
"field": "ip_dscp",
"value": 4
},
{
"type":"OUTPUT",
"port": 2
},
{
"type": "SET_FIELD",
"field": "ip_proto",
"value": 6
}
]
}
PS: You may ask why do I want to change the protocol. But is not a
problem since it will cross a second switch that will restore the
protocol to the original one before reaching the end host.
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