containernetworking / plugins / 20085283303

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master: 55%

Pull #1217

github

sbr: Add test for preserveDefaultRoutes option

Add test that verifies the preserveDefaultRoutes option correctly maintains
subnet routes in the main routing table with source IP hints for destination-
based routing.

The test verifies:
- Source-based routing rules are created (table 100)
- Subnet routes exist in main table with source hints
- Subnet routes also exist in table 100
- Default routes exist in table 100

This enables both explicit source routing (ping -I) and destination-based
routing (plain ping) to work simultaneously.

Signed-off-by: David Whyte-Gray <40244437+dagrayvid@users.noreply.github.com>

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