One might need to check which MPLSoGRE/UDP/VXLAN tunnel is used to reach a specific prefix on a vrouter.
There are few steps needed to find it out after logging in to a compute node running a VM/contrainer with an interface of interest (its prefix or prefix reachable via it) :
- 1. List all interfaces and see which vrouter VRF a specific interface maps to:
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vif --list |
- 2. Use the VRF id to dump routes in a routing table for this VRF and check a prefix in question and its next-hop id:
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rt --dump <VRF_ID> |
- 3. Check next-hop id parameters with:
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nh --get <NH_ID> |