HP procurve 2500 Manuel D’Utilisation

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Enhancements in Release F.04.08
Configuring Secure Shell (SSH)

The two commands shown in figure 35 convert the displayed format of the switch’s (host) public key 
for easier visual comparison of the switch’s public key to a copy of the key in a client’s "known host" 
file. The switch always uses an ASCII version (without PEM encoding, or babble or fingerprint 
conversion) of its public key for file storage and default display format.

4. Enabling SSH on the Switch and Anticipating SSH Client Contact Behavior

T

he 

ip ssh command enables or disables SSH on the switch and modifies parameters the switch uses 

for transactions with clients. After you enable SSH, the switch can authenticate itself to SSH clients. 

Before enabling SSH on the switch you must generate the switch’s public/private key pair. If you have 
not already done so, refer to “2. Generating the Switch’s Public and Private Key Pair” on page 85.

When configured for SSH, the switch uses its host public-key to authenticate itself to SSH clients. If 
you also want SSH clients to authenticate themselves to the switch you must do one of the following: 

■

Configure SSH on the switch for client public-key authentication at the login (Operator) level, 
with (optionally) local, TACACS+, or RADIUS authentication at the enable (Manager) level.

■

Configure SSH on the switch for local, TACACS+, or RADIUS password authentication at 
the login and enable levels.

Hexadecimal "Hash" 
of the Same Switch 
Public Key

Phonetic "Hash" of 
Switch’s Public Key