Proxy ARP & Gratuitous ARP: Advanced ARP Patterns is part of the Pro tier — advanced networking topics including BGP routing, Zero Trust, DDoS attacks, QUIC, TLS certificate chains, and more.
This scenario covers
How Proxy ARP extends ARP across subnets — a router responds to ARP requests on behalf of remote hosts, allowing hosts with misconfigured subnet masks to reach remote networks. Plus Gratuitous ARP for IP change notification and its use in VRRP failover.
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