Diameter over RADIUS
Diameter RADIUS
Failover Yes No
Transmission-level security IPsec (mandatory)
TLS (optional)
No replay attack prevention,
Public key encryption,
Reliable transport TCP, SCTP UDP
Capability negotiation Error handling No
Roaming support Secure and scalable roaming Not suitable for wide-scale
deployment
Peer discovery and
configuration
Dynamic discovery of peers
through DNS
Manually configure requiring name or
address
Agent support Proxies, Redirects, Relays No explicit support for agents
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