Two routers are connected via serial interfaces, for which the link-protocol is PPP. The network administrator wishes to configure PPP authentication to improve security on this link.
Which PPP authentication method provides a more secure solution?
Two routers are connected via serial interfaces, for which the link-protocol is PPP. The network administrator wishes to configure PPP authentication to improve security on this link.
Which PPP authentication method provides a more secure solution?
CHAP (Challenge Handshake Authentication Protocol) is a more secure PPP authentication method compared to PAP (Password Authentication Protocol). CHAP uses a three-way handshake and periodically verifies the identity of the peer using a three-way handshake which is more secure than the simple clear-text password transmission used by PAP. MD5 and SSH are not authentication methods specifically for PPP; MD5 is a hashing algorithm and SSH is a protocol for secure remote administration.
https://support.huawei.com/enterprise/en/doc/EDOC1000097193?section=k005#:~:text=PPP%20authentication%20is%20performed%20on,PAP%20authentication%20and%20CHAP%20authentication.