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11.6.20 Diagnosis of VPN certificate connections............................................................................763
11.6.21 Addition(s) to LCOS 8.00....................................................................................................764
11.6.22 Addition(s) to LCOS 8.50....................................................................................................764
11.7 Multi-level certificates for SSL/TLS........................................................................................................767
11.7.1 Introduction.........................................................................................................................767
11.7.2 SSL/TLS with multi-level certificates......................................................................................768
11.7.3 VPN with multi-level certificates...........................................................................................768
11.8 Certificate enrollment via SCEP............................................................................................................768
11.8.1 SCEP server and SCEP client.................................................................................................768
11.8.2 Distributing certificates........................................................................................................769
11.8.3 Configuring SCEP.................................................................................................................770
11.9 NAT Traversal (NAT-T)..........................................................................................................................773
11.10 Extended Authentication Protocol (XAUTH)........................................................................................775
11.10.1 Introduction.......................................................................................................................775
11.10.2 XAUTH in LCOS..................................................................................................................776
11.10.3 Configuring XAUTH............................................................................................................776
11.11 Backup via alternative VPN connection..............................................................................................777
11.11.1 Introduction.......................................................................................................................777
11.11.2 Backup-capable network infrastructure..............................................................................778
11.11.3 Configuring the VPN backup..............................................................................................780
11.12 Specific examples of connections.......................................................................................................782
11.12.1 Static/static........................................................................................................................783
11.12.2 Dynamic/static...................................................................................................................783
11.12.3 Static/dynamic (with LANCOM Dynamic VPN)....................................................................784
11.12.4 Dynamic/dynamic (with LANCOM Dynamic VPN)................................................................784
11.12.5 VPN connections: High availability with VPN load balancing..............................................785
11.13 How does VPN work?.........................................................................................................................786
11.13.1 IPSec—The basis for LANCOM VPN...................................................................................787
11.13.2 Alternatives to IPSec..........................................................................................................787
11.14 The standards behind IPSec...............................................................................................................788
11.14.1 IPSec modules and their tasks............................................................................................788
11.14.2 Security Associations – numbered tunnels.........................................................................788
11.14.3 Encryption of the packets – the ESP protocol.....................................................................789
11.14.4 Authentication – the AH protocol......................................................................................790
11.14.5 Key management – IKE......................................................................................................791
11.15 Addition(s) to LCOS 8.00....................................................................................................................792
11.15.1 VPN Pathfinder..................................................................................................................792
11.16 Addition(s) to LCOS 8.60....................................................................................................................795
11.16.1 Improved phase 1 rekeying................................................................................................795
11.16.2 MPPE encryption for PPTP tunnels.....................................................................................795
11.17 Addition(s) to LCOS 8.62....................................................................................................................796
11.17.1 Default proposals for IKE and IPSec...................................................................................796
11.17.2 myVPN...............................................................................................................................796
11.18 Addition(s) to LCOS 8.80....................................................................................................................814
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Reference Manual
Contents
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