SSH Implementation on Cisco IOS

Cisco SSH Limitations

  • Cisco SSH Client cannot propose public key authentication method.

Cisco SSH Version 2 Enhancements

Note

Cisco SSH implementations of version 2 require a miminum key modulus size of 768-bits.

  • VRF-Aware
  • DH Group Exchange
  • Supports Keyboard-Interactive (RFC 4256) and Password-Based authentication
  • Supports RSA-based public key authentiation for client/server
  • SSH debug enhancements