Minimal Multi-WAN automatic failover script for OpenWRT
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Updated
Jul 16, 2026 - Shell
Minimal Multi-WAN automatic failover script for OpenWRT
Post-merger network integration in PNetLab: mutual OSPF/EIGRP/RIP redistribution (single-point design), OSPF & EIGRP stub, dual-ISP path preference with PBR, automatic ISP failover via IP SLA, and NAT. Includes the real bugs hit and how they were traced.
Real-world enterprise 3-tier HA lab in PNetLab (Zero-Downtime Bank Network): access (L2) / distribution (L3 SVIs + FHRP + ip helper) / core (OSPF backbone) with dual-ISP IP SLA failover and NAT on the ISP edge
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