Decrypt juniper bgp password

IPsec is a general-purpose security mechanism that addresses all these weaknesses there is also an improved version of the MD5 password system. For normal packets, the TTL is set to something like 60, and then every router that forwards the packets decrements the TTL by one.

When the TTL reaches zero, the packet is dropped. The receiving router then checks if the TTL is still 1. If not, something bad must have happened so the BGP session is torn down. This system is also extensively used for IPv6 packets that are only intended for local use. This is how to configure it on Cisco:. Save my name, email, and website in this browser for the next time I comment. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search.

I am trying to backup my configuration on a Juniper m OS version I would prefer not to use the archival server configuration because a custom application will kick off backup and not the router itself. My user's login class is "super-user" and therefore should have all permission bits set including "secret" unless I have misunderstood something.

In either case, the root and user account passwords are encrypted in the output. What should I do? I appreciate your help! The string shown in the password field of user and root accounts in the Junos configuration is not the password encrypted, but a salted MD5 hash of the password.

A hash by nature is a one-way function - in other words, there is no functional way to take a hash and convert it back to the original password. When you log into the box, the password you enter is run through the same hashing algorithm with the salt for that user account applied and the results are compared - if they match, then Junos knows that the password you entered must be the same as the one that generated the hash that is stored in the configuration.

Regarding the secret permission bit in Junos: this allows you to view sections of the configuration that contain these hashes - if you do not have the secret permission bit set, you will not see any of them - it does not show the original passwords. I'm not sure why you need to see the password in plaintext format even if you are backing up configuration? If you restore a backed up configuration to the box, the hash will remain the same and your password will continue to work.

The sending peer identifies the current authentication key based on a configured start time and then generates a hash value using the current key. The receiving peer examines the incoming TCP-enhanced authentication option, looks up the received authentication key, and determines whether the key is acceptable based on the start time, the system time, and the tolerance parameter.

If the key is accepted, the receiving peer calculates a hash and authenticates the update message. Initial application of a keychain to a TCP session causes the session to reset. However, once the keychain is applied, the addition or removal of a password from the keychain does not cause the TCP session to reset. Also, the TCP session does not reset when the keychain changes from one authentication algorithm to another. In Release In releases before Junos OS Release Starting in Junos OS Release All BGP protocol exchanges can be authenticated to guarantee that only trusted routing devices participate in autonomous system AS routing updates.

By default, authentication is disabled. When you configure authentication, the algorithm creates an encoded checksum that is included in the transmitted packet. This example includes the following statements for configuring and applying the keychain:. Each key within a keychain must be identified by a unique integer value. The range of valid identifier values is from 0 through The key can be up to characters long.

The clock-skew tolerance is applicable to the receiver accepting keys for BGP updates. The configurable range is 0 through ,, seconds. During the tolerance period, either the current or previous password is acceptable.

This example defines one keychain: bgp-auth. You can have multiple keychains on a routing device. This password can be entered in either encrypted or plain text format in the secret statement. It is always displayed in encrypted format. Control gets passed from one key to the next.

Start times are specified in the local time zone for a routing device and must be unique within the keychain. You associate a keychain and an authentication algorithm with a BGP neighboring session.

This example configures a keychain named bgp-auth. Key 0 will be sent and accepted starting at Key 1 becomes active one year later at A clock-skew tolerance of 30 seconds applies to the receiver accepting the keys.