1. **Keychain Configuration**: While earlier EIGRP configurations used keychains for authentication, modern practices often leverage more advanced security mechanisms such as IPsec for authentication and encryption. This provides stronger protection compared to the older keychain approach.
2. **Masking Requirements**: In newer configurations, particularly with Cisco ASA devices and modern routing protocols, the need to specify subnet masks has been streamlined. For instance, EIGRP configuration on newer systems might use classless routing or automated summarization, reducing the need for manual mask specifications.
Overall, modern practices emphasize enhanced security, automation, and integration of advanced features to simplify configuration and management.
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