Configure
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Alcatel-Lucent
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OmniAccess 5740 Unified Services Gateway Web GUI Users Guide
Figure 119: VPN IPSec: IPSec Wizard - VPN (IPSec) Settings 
1. Select the predefined PFS group in PFS drop-down list. Default PFS group is 
group2 (1024 bit).
2. Enter the IPSec SA lifetime in the Lifetime (Sec) and Lifetime (KB) fields.The 
default lifetime for IPSec SA is 28800 seconds.
3. By default, Use Default Transform-set check box is enabled.
A transform set ‘default’ is created in your system. If a Transform-set is not 
configured, the ‘default’ Transform-set policy is applied to the IPSec profile. 
Following are the default values for transform-set ‘default’: 
• esp-sha1-des
• esp-md5-des
Retain the default values or configure as required.
4. Configure Transform-set as required. To do the same, unselect the Use Default 
Transform-set check box.
• Here you have two options: Configure a new Transform-set or use an already 
created Transform-set.