Dell X1000 Networking X-Series Switches User Guide - Page 222

Active, Network Administration &gt, Route Settings, IPv6 Routes Settings, ISATAP Tunnel, ISATAP

Page 222 highlights

FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\Dell Astute\User Guide\Dell_Astute_Network_Admin_RouteSettings.fm When enabling ISATAP on a tunnel interface, an explicit IPv4 address is configured as the tunnel source, or an automatic mode exists, where the lowest IPv4 address is assigned to an IP interface. This source IPv4 address is used for setting the tunnel interface identifier according to ISATAP addressing conventions. When a tunnel interface is enabled for ISATAP, the tunnel source must be set for the interface in order for the interface to become active. An ISATAP address is represented using the [64-bit prefix]:0:5EFE:w.x.y.z, where 5EFE is the ISATAP identifier and w.x.y.z is a public or private IPv4 address. Thus, a Link Local address will be represented as FE80::5EFE:w.x.y.z After the last IPv4 address is removed from the interface, the ISATAP IP interface state becomes inactive and is represented as Down, however the Admin state remains Enabled. When defining tunneling, note the following: • An IPv6 Link Local address is assigned to the ISATAP interface. The initial IP address is assigned to the interface, and the interface state becomes Active. • If an ISATAP interface is active, the ISATAP router IPv4 address is resolved via DNS by using ISATAP-to-IPv4 mapping. If the ISATAP DNS record is not resolved, the ISATAP host name-to-address mapping is searched in the host name cache. • When an ISATAP router IPv4 address is not resolved via the DNS process, the status of the ISATAP IP interface remains Active. The system does not have a default gateway for ISATAP traffic until the DNS procedure is resolved. • In order for an ISATAP Tunnel to work properly over an IPv4 network, an ISATAP router must be set up.. To define an IPv6 ISATAP tunnel: 1 Click Network Administration > Route Settings > IPv6 Routes Settings > ISATAP Tunnel. 2 Click Edit and enter the fields: - ISATAP Status - Enable/disable the status of ISATAP on the device. - IPv4 Address Type- Select the type of the tunnel source IPv4 address used by the tunnel. The options are: DELL CONFIDENTIAL - PRELIMINARY 8/9/16 - FOR PROOF ONLY 222 Network Administration: Route Settings

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222
Network Administration: Route Settings
FILE LOCATION:
C:\Users\gina\Desktop\Checkout_new\Dell Astute\User
Guide\Dell_Astute_Network_Admin_RouteSettings.fm
DELL CONFIDENTIAL – PRELIMINARY 8/9/16 - FOR PROOF ONLY
When enabling ISATAP on a tunnel interface, an explicit IPv4 address is
configured as the tunnel source, or an automatic mode exists, where the
lowest IPv4 address is assigned to an IP interface. This source IPv4 address is
used for setting the tunnel interface identifier according to ISATAP
addressing conventions. When a tunnel interface is enabled for ISATAP, the
tunnel source must be set for the interface in order for the interface to
become active.
An ISATAP address is represented using the [64-bit prefix]:0:5EFE:w.x.y.z,
where 5EFE is the ISATAP identifier and w.x.y.z is a public or private IPv4
address. Thus, a Link Local address will be represented as FE80::5EFE:w.x.y.z
After the last IPv4 address is removed from the interface, the ISATAP IP
interface state becomes inactive and is represented as Down, however the
Admin state remains Enabled.
When defining tunneling, note the following:
An IPv6 Link Local address is assigned to the ISATAP interface. The initial
IP address is assigned to the interface, and the interface state becomes
Active
.
If an ISATAP interface is active, the ISATAP router IPv4 address is resolved
via DNS by using ISATAP-to-IPv4 mapping. If the ISATAP DNS record is
not resolved, the ISATAP host name-to-address mapping is searched in the
host name cache.
When an ISATAP router IPv4 address is not resolved via the DNS process,
the status of the ISATAP IP interface remains Active. The system does not
have a default gateway for ISATAP traffic until the DNS procedure is
resolved.
In order for an ISATAP Tunnel to work properly over an IPv4 network, an
ISATAP router must be set up..
To define an IPv6 ISATAP tunnel:
1
Click
Network Administration >
Route Settings
>
IPv6 Routes Settings
>
ISATAP Tunnel
.
2
Click
Edit
and enter the fields:
ISATAP Status
— Enable/disable the status of ISATAP on the device.
IPv4 Address Type
— Select the type of the tunnel source IPv4 address
used by the tunnel. The options are: