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9.9.3 IP routing tables....................................................................................................................626
9.9.4 Separate views for the IPv4 and IPv6 firewalls.......................................................................628
9.9.5 IPv6 DNS hosts in the DNS list ..............................................................................................628
9.9.6 Configuring the IPv6 firewall rules.........................................................................................628
9.10 Tutorials...............................................................................................................................................639
9.10.1 Setting up IPv6 Internet access............................................................................................639
9.10.2 Setting up a 6to4 tunnel......................................................................................................648
9.11 Addition(s) to LCOS 8.82......................................................................................................................654
9.11.1 Reconfigure function of the DHCPv6 server..........................................................................654
9.12 Addition(s) to LCOS 8.84......................................................................................................................661
9.12.1 IPv6 prefix delegation from the WWAN to the LAN..............................................................661
9.13 Addition(s) to LCOS 9.00......................................................................................................................663
9.13.1 Dual-Stack Lite (DS-Lite).......................................................................................................663
9.13.2 IPv6 support for RAS services...............................................................................................670
9.13.3 RADIUS attribute extensions for IPv6 RAS services...............................................................678
9.13.4 Loopback addresses for IPv6................................................................................................679
9.13.5 Lightweight DHCPv6 relay agent (LDRA)..............................................................................681
9.13.6 Router advertisement snooping............................................................................................687
9.14 Addition(s) to LCOS 9.10......................................................................................................................689
9.14.1 Prefix-exclude option for DHCPv6 prefix delegation.............................................................689
10 Quality of Service..........................................................................................................691
10.1 Why QoS?............................................................................................................................................691
10.2 Which data packets to prefer?..............................................................................................................691
10.2.1 What is DiffServ?..................................................................................................................692
10.2.2 Guaranteed minimum bandwidths.......................................................................................692
10.2.3 Limited maximum bandwidths.............................................................................................693
10.3 The queue concept...............................................................................................................................693
10.3.1 Queues in transmission direction..........................................................................................693
10.3.2 Queues for receiving direction..............................................................................................695
10.4 Reducing the packet length.................................................................................................................695
10.5 QoS parameters for Voice over IP applications.....................................................................................696
10.6 QoS in sending or receiving direction...................................................................................................699
10.7 QoS configuration................................................................................................................................700
10.7.1 Evaluating ToS and DiffServ fields........................................................................................700
10.7.2 Defining minimum and maximum bandwidths.....................................................................702
10.7.3 Adjusting transfer rates for interfaces..................................................................................703
10.7.4 Sending and receiving direction...........................................................................................703
10.7.5 Reducing the packet length.................................................................................................704
10.8 QoS for WLANs according to IEEE 802.11e (WMM/WME)....................................................................705
11 Virtual Private Networks (VPN)....................................................................................706
11.1 What does VPN offer?..........................................................................................................................706
11.1.1 Conventional network infrastructure....................................................................................706
11.1.2 Networking via the Internet.................................................................................................707
11.1.3 Private IP addresses on the Internet?....................................................................................707
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Reference Manual
Contents
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