Environment

• Nautobot version: 2.4.x
• nautobot-device-onboarding version: 4.2.6a0

Proposed Functionality

Currently, only primary IP addresses of a network device (I am using Cisco devices) are added to an interface of a device. Secondary IP addresses are completely ignored. This means that many IP addresses are not included in IPAM. This may even lead to errors: If the management IP address is configured as “Secondary” on a device, it is unassigned in nautobot. After running the app, the device no longer has a primary address configured.

In general, it should be possible to assign a role to an IP address. I think there will be numerous use cases for this.

The command mapper of Cisco XE uses 'show interfaces' to gather the IP-addresses. To get the secondary IP-Adresses you have to use 'show ip interface' instead.

Use Case

I assume that many users use secondary IP addresses, especially when migrating networks. Secondary IP addresses are certainly used more often.

What to do

I have had a look at the whole thing and with a few changes it should work. I have changed the following:

• In sync_network_data_models.py I have aded the role to 'class SyncNetworkDataIPAddress'. I have modified create and update so that the role is considered.

• In sync_network_data_adapters.py I have modified 'load_ip_addresses' in 'class SyncNetworkDataNautobotAdapter' and in 'class SyncNetworkDataNetworkAdapter'

• In 'diffsync_utils.py' I have modiefied 'get_or_create_ip_address'
  and in jinja_filters.py I have added a parser 'parse_cisco_xe_show_ip_interface'

I have forked the code and added my changes. The code seems to work. I haven't contributed code to an open source project yet. Also, the tests now seem to have problems with the new role. I am wondering how I could best contribute the code. It is also difficult for me to adapt the tests. Is there any way that someone can help me with this?