There is an error message on NEC IX router using telnet

SUMMARY

I want to make a telnet connection to the NEC IX router and execute the command, but an error is returned immediately. The prompt to be set, the user name, and the password match, but I would like advice including how to write a playbook.

ISSUE TYPE

Bug Report

COMPONENT NAME

telnet

ANSIBLE VERSION

-sh-4.2$ ansible --version
ansible 2.10.5
config file = None
configured module search path = ['/home/kuemura/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
ansible python module location = /usr/local/lib/python3.6/site-packages/ansible
executable location = /usr/local/bin/ansible
python version = 3.6.8 (default, Nov 16 2020, 16:55:22) [GCC 4.8.5 20150623 (Red Hat 4.8.5-44)]
-sh-4.2$

COLLECTION VERSION

# /usr/local/lib/python3.6/site-packages/ansible_collections
Collection Version
------------------------- -------
amazon.aws 1.3.0
ansible.netcommon 1.4.1
ansible.posix 1.1.1
ansible.windows 1.3.0
arista.eos 1.2.0
awx.awx 14.1.0
azure.azcollection 1.3.1
check_point.mgmt 1.0.6
chocolatey.chocolatey 1.0.2
cisco.aci 1.1.1
cisco.asa 1.0.4
cisco.intersight 1.0.10
cisco.ios 1.2.1
cisco.iosxr 1.2.0
cisco.meraki 2.1.3
cisco.mso 1.1.0
cisco.nso 1.0.2
cisco.nxos 1.3.1
cisco.ucs 1.6.0
cloudscale_ch.cloud 1.3.1
community.aws 1.3.0
community.azure 1.0.0
community.crypto 1.4.0
community.digitalocean 1.0.0
community.docker 1.2.0
community.fortios 1.0.0
community.general 1.3.5
community.google 1.0.0
community.grafana 1.1.0
community.hashi_vault 1.0.0
community.hrobot 1.1.0
community.kubernetes 1.1.1
community.kubevirt 1.0.0
community.libvirt 1.0.0
community.mongodb 1.1.2
community.mysql 1.2.0
community.network 1.3.1
community.okd 1.0.1
community.postgresql 1.1.0
community.proxysql 1.0.0
community.rabbitmq 1.0.1
community.routeros 1.1.0
community.skydive 1.0.0
community.vmware 1.6.0
community.windows 1.2.0
community.zabbix 1.2.0
containers.podman 1.4.1
cyberark.conjur 1.1.0
cyberark.pas 1.0.5
dellemc.os10 1.0.2
dellemc.os6 1.0.6
dellemc.os9 1.0.3
f5networks.f5_modules 1.7.1
fortinet.fortimanager 1.0.5
fortinet.fortios 1.1.8
frr.frr 1.0.3
gluster.gluster 1.0.1
google.cloud 1.0.1
hetzner.hcloud 1.2.1
ibm.qradar 1.0.3
infinidat.infinibox 1.2.4
junipernetworks.junos 1.2.1
mellanox.onyx 1.0.0
netapp.aws 20.9.0
netapp.elementsw 20.11.0
netapp.ontap 20.12.0
netapp_eseries.santricity 1.1.0
netbox.netbox 1.2.1
ngine_io.cloudstack 1.1.0
ngine_io.exoscale 1.0.0
ngine_io.vultr 1.0.0
openstack.cloud 1.2.1
openvswitch.openvswitch 1.1.0
ovirt.ovirt 1.2.4
purestorage.flasharray 1.5.1
purestorage.flashblade 1.4.0
servicenow.servicenow 1.0.3
splunk.es 1.0.2
theforeman.foreman 1.5.1
vyos.vyos 1.1.0
wti.remote 1.0.1

CONFIGURATION

-sh-4.2$ ansible-config dump --only-changed
-sh-4.2$

OS / ENVIRONMENT

-sh-4.2$ cat /etc/redhat-release CentOS Linux release 7.9.2009 (Core) -sh-4.2$ -sh-4.2$ -sh-4.2$

STEPS TO REPRODUCE

---
- name: telnet connect
  hosts: all
  gather_facts: no
  connection: local

  tasks:
    - name: telnet_connect
      telnet:
        user: username
        password: password
        login_prompt: "login"
        password_prompt: "Password"
        prompts:
          - "[$|>|#]"
        command:
          - show version

EXPECTED RESULTS

Executing show version command and no error occurs.

ACTUAL RESULTS

fatal: [Router]: FAILED! => {"changed": true, "msg": "Telnet action failed: telnet connection closed", "output": []}

ansible-collections / ansible.netcommon

There is an error message on NEC IX router using telnet #315