Wrong IP Address Name label for Public IP address in Routed VPC Network

##### ISSUE TYPE

* Improvement Request

##### COMPONENT NAME

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VPC
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##### CLOUDSTACK VERSION

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4.20.0
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##### CONFIGURATION

Advanced Networking

##### OS / ENVIRONMENT

##### SUMMARY

In a Routed VPC Network, the Public IP address associated with the Virtual Router’s north interface is incorrectly labeled as “Source NAT.” This is misleading since the Source NAT service is not applicable in Routed VPC mode.

This IP address functions as the external gateway, enabling communication between the upstream router and instances with public IP addresses inside the VPC. The label should be updated to reflect its actual role, with suggestions such as “External Gateway” or another appropriate name indicating its function for routing upstream traffic.

##### STEPS TO REPRODUCE

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1. Create a VPC network with Routed mode enabled.
2. Navigate to the “Public IP Addresses” tab.
3. Observe the Public IP address labeled as “Source NAT.”
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##### EXPECTED RESULTS

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The IP address should have a label that accurately represents its function, such as “External Gateway.”
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##### ACTUAL RESULTS

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The Public IP address is labeled as “Source NAT,” which is misleading in the context of Routed VPC mode.
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