Dynamic Routing Over Tunnels: BGP and OSPF Through Encrypted Links
Run routing protocols over VPN tunnels on VyOS. Covers OSPF over GRE/IPsec, BGP over WireGuard, tunnel interface selection, and why routing over tunnels requires careful planning.
#routing
12 posts tagged with "routing"
BGP Dampening: Suppressing Route Flapping
Configure BGP route dampening on VyOS. Covers dampening parameters, penalty calculation, route suppression, reuse thresholds, and why dampening prevents unstable routes from destabilizing your network.
ECMP and Multipath: Load Balancing at the Routing Layer
Configure ECMP on VyOS for route-level load balancing. Covers equal-cost paths, multipath BGP, hash algorithms, troubleshooting uneven distribution, and why ECMP is simple but requires understanding.
Route Leaking Between VRFs: Controlled Connectivity
Configure route leaking between VRFs on VyOS. Covers import/export policies, selective leaking, shared services, and why route leaking provides controlled cross-VRF connectivity.
BGP Communities: Signaling Intent Across Networks
Master BGP communities on VyOS. Covers standard, extended, and large communities, common use cases, community-based filtering, and why communities are the language networks speak.
Policy Routing Debug: Why Traffic Takes the Wrong Path
Debug policy-based routing on VyOS. Covers rule evaluation order, mark verification, table inspection, common misconfigurations, and why PBR debugging needs systematic verification.
VRF & Segmentation: When VLANs Aren't Enough
Using VRF on VyOS for network isolation that goes beyond VLANs. Covers VRF creation, inter-VRF routing, route leaking, firewalling between VRFs, and maintaining a clear mental model of your segmentation.
RPKI/IRR Filtering Strategy: Practical, Not Academic
Real-world BGP route validation using RPKI and IRR on VyOS. Covers validator setup, policy storage, prefix validation workflow, and why filtering is a process, not a single configuration.
BGP on VyOS: Filters Are Not Optional
BGP fundamentals on VyOS using FRR. Covers eBGP/iBGP setup, prefix-lists, route-maps, communities, max-prefix protection, and why BGP without filtering is an incident waiting to happen.
OSPF on VyOS: When Details Break Everything
Practical OSPF configuration on VyOS. Covers areas, passive interfaces, authentication, MTU issues, and the small details that cause OSPF adjacencies to fail silently.
Multi-WAN on VyOS: Failover That Actually Works
Configuring reliable multi-WAN failover on VyOS with proper health checking. Covers dual ISP setup, weighted load balancing, SLA monitoring, and why failover without tracking is false confidence.
Policy-Based Routing on VyOS: Practical Patterns for Split Routing
How to route specific traffic through different gateways on VyOS. Covers routing by source, destination, domain, and application with real-world examples like split-tunnel VPN.