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Prestige 202H User’s Guide
26-18 VPN/IPSec Setup
26.11 Configuring IKE Settings
This may be unnecessary for data that does not require such security, so PFS is disabled (None) by default in
the Prestige. Disabling PFS means new authentication and encryption keys are derived from the same root
secret (which may have security implications in the long run) but allows faster SA setup (by bypassing the
Diffie-Hellman key exchange).
Figure 26-7
Menu 27.1.1.1 IKE Setup
Table 26-8 Menu 27.1.1.1 IKE Setup
FIELD DESCRIPTION EXAMPLE
Phase 1
Negotiation
Mode
Press [SPACE BAR] to choose from Main or Aggressive and then press
[ENTER]. Multiple SAs connecting through a secure gateway must have the
same negotiation mode.
Main
Pre-Shared Key Prestige gateways authenticate an IKE VPN session by matching pre-shared
keys. Pre-shared keys are best for small networks with fewer than ten nodes.
Enter your pre-shared key here. Enter up to 31 characters. Any character
may be used, including spaces, but trailing spaces are truncated. Multiple
SAs connecting through a secure gateway must have the same pre-shared
key.
Menu 27.1.1.1 - IKE Setup
Phase 1
Negotiation Mode= Main
Pre-Shared Key= ?
Encryption Algorithm = DES
Authentication Algorithm = MD5
SA Life Time (Seconds)= 28800
Key Group= DH1
Phase 2
Active Protocol = ESP
Encryption Algorithm = DES
Authentication Algorithm = SHA1
SA Life Time (Seconds)= 28800
Encapsulation = Tunnel
Perfect Forward Secrecy (PFS)= None
Press ENTER to Confirm or ESC to Cancel: