Unable to set a link-local IPv6 address with yang + restconf

Philippe Latu — Thu, 11 Jun 2020 14:08:05 GMT

Hello,

This is a "what am I doing wrong?" question. Any hint would be appreciated ;))

The code works fine as long as I set GUA IPv6 addresses, but when I try to set a link-local IPv6 address with the code below, I get the following error :

$ python3 ./lab2.5-p2.py
ERROR CODE 400, reply {
    "errors": {
        "error": [
            {
                "error-message": "inconsistent value: Device refused one or more commands",
                "error-path": "/ietf-interfaces:interfaces/interface=Loopback99",
                "error-tag": "invalid-value",
                "error-type": "application"
            }
        ]
    }
}

Here is the source code :

import json
import requests

requests.packages.urllib3.disable_warnings()

api_url = "https://172.16.13.4/restconf/data/ietf-interfaces:interfaces/interface=Loopback99"

headers = { "Accept": "application/yang-data+json",
            "Content-type": "application/yang-data+json"
        }

basicauth = ("etu", "-etu-")

yangConfig = {
        "ietf-interfaces:interface": {
            "name": "Loopback99",
            "description": "WHATEVER99",
            "type": "iana-if-type:softwareLoopback",
            "enabled": True,
            "ietf-ip:ipv4": {
                "address": [
                    {
                    "ip": "99.99.99.99",
                    "netmask": "255.255.255.0"
                    }
                ]
            },
            "ietf-ip:ipv6": {
                "address": [
                    {
                    "ip": "2001:db8:99::99",
                    "prefix-length": "64"
                    },
                    {
                    "ip": "fe80::99",
                    "prefix-length": "64",
                    }
                ]
                }
        }
    }

resp = requests.put(api_url, data=json.dumps(yangConfig), auth=basicauth, headers=headers, verify=False)

if (resp.status_code >= 200 and resp.status_code <= 299):
    print("STATUS OK: {}".format(resp.status_code))
else:
    print("ERROR CODE {}, reply {}".format(resp.status_code, json.dumps(resp.json(), indent=4)))

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Unable to set a link-local IPv6 address with yang + restconf