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Apple 034-2351_Cvr manual IPv6 Enabled Services, IPv6 Addresses in the Server Admin, Notation

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IPv6 Enabled Services

The following services in Mac OS X Server support IPv6 in addressing:

•DNS (BIND)

•IP Firewall

•Mail (POP/IMAP/SMTP)

•SMB

•Web (Apache 2)

Additionally, there are a number of command-line tools installed with Mac OS X Server that support IPv6 (for example, ping6, and traceroute6).

IPv6 Addresses in the Server Admin

The services above don’t support IPv6 addresses in the user interface. They can be configured with command-line tools to add IPv6 addresses, but those same addresses will fail if entered into address fields in Server Admin.

IPv6 Addresses

IPv6 addresses are different than IPv4 addresses. In changing addresses, there are changes in address notation, reserved addresses, the address model, and address types.

Notation

While IPv4 addresses are 4 bytes long and expressed in decimals, IPv6 addresses are 16 bytes long and can be expressed a number of ways.

IPv6 addresses are generally written in the following form:

xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx

Pairs of IPv6 bytes are separated by a colon and each byte is represented as a pair of hexadecimal number, as in the following example:

E3C5:0000:0000:0000:0000:4AC8:C0A8:6420

or

E3C5:0:0:0:0:4AC8:C0A8:6420

IPv6 addresses often contain many bytes with a zero value, so a shorthand notation is available. The shorthand notation removes the zero values from the text representation and puts the colons next to each other, as follows:

E3C5::4AC8:C0A8:6420

Chapter 7 IPv6 Support

Image 84

Apple 034-2351_Cvr manual IPv6 Enabled Services, IPv6 Addresses in the Server Admin, Notation

Contents

Mac OS X Server Network Services Administration For Version 10.3 or LaterApple Computer, Inc 2003 Apple Computer, Inc. All rights reserved034-2351/9-20-03 Contents How to Use This GuideUsing This Guide Setting Up Mac OS X Server for the First TimeNAT Service Configuring NAT ServiceMonitoring NAT Service VPN ServiceHow to Use This Guide Using This GuideWhat’s Included in This Guide PrefaceSetting Up Mac OS X Server for the First Time Getting Help for Everyday Management TasksGetting Additional Information DHCP Service Before You Set Up DHCP ServiceUsing Static IP Addresses Creating SubnetsAssigning IP Addresses Dynamically Locating the DHCP ServerSetting Up DHCP Service for the First Time Using Multiple DHCP Servers on a NetworkInteracting With Other DHCP Servers Assigning Reserved IP AddressesManaging DHCP Service Starting and Stopping DHCP ServiceCreating Subnets in DHCP Service Step 2 Set up logs for DHCP serviceChanging Subnet Settings in DHCP Service To change subnet settingsDeleting Subnets From DHCP Service Setting the DNS Server for a DHCP SubnetChanging IP Address Lease Times for a Subnet To delete subnets or address rangesSetting LDAP Options for a Subnet Setting WINS Options for a SubnetTo set LDAP options for a subnet Monitoring DHCP Service To disable a subnetDisabling Subnets Temporarily Viewing the DHCP Status OverviewSetting the Log Detail Level for DHCP Service To set up the log detail levelViewing DHCP Log Entries Viewing the DHCP Client ListWhere to Find More Information DNS Service Before You Set Up DNS Service Setting Up DNS Service for the First TimeSetting Up Multiple Name Servers DNS and BINDStep 2 Learn and plan Step 3 Configure basic DNS settings Step 6 Set up a mail exchange MX record optionalStep 8 Start DNS service Step 4 Create a DNS ZoneManaging DNS Service Starting and Stopping DNS ServiceTo start or stop DNS service To enable or disable zone transferTo enable or disable recursion Managing ZonesAdding a Master Zone MasterAdding a Slave Zone To add a master zoneTo add a slave zone Adding a Forward Zone Duplicating a ZoneTo add a forward zone To duplicate a zoneManaging Records Modifying a ZoneDeleting a Zone To modify a zoneAdding a Record to a Zone To add a recordModifying a Record in a Zone Deleting a Record From a ZoneTo modify a record To delete a recordViewing DNS Service Status Viewing DNS Service ActivityTo view DNS service status To view DNS service activityChanging DNS Log File Location Viewing DNS Usage StatisticsTo change the log detail level To change the log detail levelSecuring the DNS Server DNS SpoofingServer Mining To see DNS usage statisticsDNS Service Profiling Denial-of-ServiceDoSTo specify zone transfer IP addresses To alter BIND’s version responseService Piggybacking optionsallow-recursion 127.0.0.0/8 Setting Up MX Records Configuring DNS for Mail Service To enable MX recordsEnabling Redundant Mail Servers Setting Up Namespace Behind a NAT Router To enable backup or redundant mail serversSetting Up a Private TCP/IP Network Network Load Distribution aka Round RobinConfiguring BIND Using the Command Line What Is BIND?BIND Configuration File BIND on Mac OS X ServerPractical Example Zone Data FilesSetting Up Sample Configuration Files To set up the sample filesConfiguring Clients Using DNS With Dynamically Assigned IP Addresses Check Your ConfigurationRequest For Comment Documents Where to Find More InformationPage IP Firewall Service Chapter 3 IP Firewall Service What is a Filter? Understanding Firewall FiltersIP Address Subnet MaskChapter 3 IP Firewall Service Number of addressesCIDR Corresponds to NetmaskUsing Address Ranges Rule Mechanism and PrecedenceMultiple IP Addresses SampleSetting Up Firewall Service for the First Time Step 2 Start firewall serviceStep 1 Learn and plan Step 4 Add filters to the IP filter listManaging Firewall Service Starting and Stopping Firewall ServiceOpening the Firewall for Standard Services Step 5 Save firewall service changesTo open the firewall for standard services Creating an Address GroupTo create an address group Editing or Deleting an Address Group Duplicating an Address GroupCreating an Advanced IP Filter for TCP ports To edit or delete an address groupCreating an Advanced IP Filter for UDP Ports To create an IP filter for TCP portsTo create an IP filter for UDP ports Changing the Default Filter To change the Default settingEditing Advanced IP Filters To edit advanced IP filtersMonitoring Firewall Service Setting Up Logs for Firewall ServiceTo set up logs To view the log for firewall serviceViewing Denied Packets Viewing Packets Logged by Filter RulesLog Example To view denied packetsBlock Access to Internet Users Practical ExamplesBlock Junk Mail To do thisAllow a Customer to Access the Apple File Server To do thisTo do this Preventing Denial-of-ServiceDoS Attacks To prevent ping denial-of-serviceattacksControlling or Enabling Peer-to-PeerNetwork Usage Advanced Configuration Controlling or Enabling Network Game UsageBackground Precautions Creating IP Filter Rules Using ipfwReviewing IP Filter Rules Creating IP Filter RulesChapter 3 IP Firewall Service Rule numberPort Reference Deleting IP Filter RulesChapter 3 IP Firewall Service TCP portUsed for ReferenceChapter 3 IP Firewall Service TCP portUsed for ReferenceFor more information about ipfw Where to Find More InformationRequest For Comment Documents man ipfwNAT Service Starting and Stopping NAT ServiceTo start NAT service Configuring NAT Service Monitoring NAT ServiceTo configure NAT service Viewing the NAT Status OverviewTo view the NAT divert log For more information about natdWhere to Find More Information Request For Comment DocumentsPage VPN Service Authentication Method VPN and SecurityTransport Protocols Point to Point Tunneling Protocol PPTPBefore You Set Up VPN Service Managing VPN ServiceStarting or Stopping VPN Service Enabling and Configuring L2TP Transport ProtocolEnabling and Configuring PPTP Transport Protocol To enable L2TPTo enable PPTP Configuring VPN Network Routing Definitions To configure addition network settingsTo set routing definitions Monitoring VPN Service Setting the Log Detail Level for VPN ServiceSetting the VPN Log Archive Interval To set up the log archive intervalViewing the VPN Log Viewing VPN Client ConnectionsTo view the log To view client connectionsPage NTP Service How NTP WorksUsing NTP on Your Network Setting Up NTP ServiceTo set up NTP service Configuring NTP on Clients To configure NTP on clientsWhere to Find More Information Request For Comment DocumentsPage IPv6 Support IPv6 Enabled Services IPv6 Addresses in the Server AdminIPv6 Addresses NotationIPv6 Reserved Addresses IPv6 Addressing ModelIPv6 Address Types Where to Find More Information Request For Comment DocumentsGlossary GlossaryGlossary LDAP Lightweight Directory Access Protocol A standard client-serverprotocol for accessing a directory domain name server See DNS Domain Name System search path See search policy UCE unsolicited commercial email See spam Page Page Index IndexIndex Index