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RiverMaster Administrator’s Guide
Configuring Tunnel Protocols Appendix B
ANG-3000/7000 Preconfiguration Stored on a Floppy Disk
4 Click the Encryption tab.
5 Do one of the following:
– To set IPSec encryption parameters, choose IPSec from the
Protocol menu. IPSec encryption parameters are shown in
Figure 125. Select the IPSec Encryption Algorithm that
determines how IPSec packets exchanged between Aurorean
Network Gateways are encrypted.
– To set PPTP encryption parameters, choose PPTP from the
Protocol menu. PPTP encryption parameters are shown in
Figure 125. Select the Microsoft Point-to-Point Encryption
(MPPE) algorithm that determines how PPTP packets exchanged
between ANGs are encrypted.
Table 18 IPsec Authentication Parameters
Parameter Explanation
None Disables the Signature Algorithm for IPSec packets; individual
packets are no longer signed and verified during transmission.
HMAC-SHA Enables hashing message authentication codes (HMAC) that are
generated using the SHA cryptographic hashing function. HMAC-
SHA is generally regarded as stronger, more secure cryptographic
function than HMAC-MD5.
HMAC-MD5 Enables hashing message authentication codes (HMAC) that are
generated using the Rivest MD5 message digest algorithm hashing
function. While not as strong cryptographically as HMAC-SHA,
HMAC-MD5 provides better performance.
Time Period Interval after which a new key is generated. Default value: 60
minutes.
Data
Transferred
Lifetime volume (in kilobytes) of the key after which a new key is
generated. Default value: Disabled.