IOS ACLs/Prefix List merge state issues a NO for pre-existing config which can break network and is not expected

[justjais]

SUMMARY

OS ACLs/Prefix List merge state issues a NO for pre-existing config which can break the network and is not expected

ISSUE TYPE

• Bug Report

COMPONENT NAME

ios_acls and prefix_lists

ANSIBLE VERSION

2.10+

CONFIGURATION

OS / ENVIRONMENT

mac os

STEPS TO REPRODUCE

# Before state:
# -------------
#
# vios#sh access-lists
# Extended IP access list 110
#    10 deny icmp 192.0.2.0 0.0.0.255 192.0.3.0 0.0.0.255 echo dscp ef ttl eq 10

- name: Merge provided configuration with device configuration
  cisco.ios.ios_acls:
    config:
    - afi: ipv4
      acls:
      - name: 110
        aces:
        - sequence: 10
          protocol_options:
            icmp:
              traceroute: true
        - grant: deny
          protocol_options:
            tcp:
              ack: true
          source:
            host: 198.51.100.0
          destination:
            host: 198.51.110.0
            port_protocol:
              eq: telnet
    state: merged


# Prefix List
# Before state:
# -------------
#
# router-ios#sh running-config | section ^ip prefix-list|^ipv6 prefix-list
# ipv6 prefix-list test_ipv6 description this is ipv6
# ipv6 prefix-list test_ipv6 seq 10 deny 2001:DB8:0:4::/64 ge 80
- name: Merge provided Prefix lists configuration
  cisco.ios.ios_prefix_lists:
    config:
      - afi: ipv6
        prefix_lists:
          - name: test_ipv6
            entries:
              - description: this is ipv6 merge test
              - action: deny
                prefix: 2001:DB8:0:4::/64
                ge: 80
                le: 100
                sequence: 10
    state: merged

EXPECTED RESULTS

The task fails with error that pre-existing ACLs/Prefix Lists cannot be merged

ACTUAL RESULTS

ACL:

# Commands fired:
# ---------------
#
# - ip access-list extended 110
# - no 10
# - 10 deny icmp 192.0.2.0 0.0.0.255 192.0.3.0 0.0.0.255 traceroute dscp ef ttl eq 10

Prefix_List:

#  Commands Fired:
#  ---------------
#
#   "commands": [
#         "no ipv6 prefix-list test_ipv6 seq 10 deny 2001:DB8:0:4::/64 ge 80",
#         "ipv6 prefix-list test_ipv6 seq 10 deny 2001:DB8:0:4::/64 ge 80 le 100",
#         "ipv6 prefix-list test_ipv6 description this is ipv6 merge test"
#     ]