Dell PowerEdge VRTX User Manual

Page 113

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FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\Dell Plasma\User

Guide\Plasma_UGSystemConfig.fm

D E L L CO N F I D E N T I A L – P R E L I MI N A RY 4/ 1 8 /1 3 - F O R PR O O F O N LY

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 is must be set up.

To define an IPv6 ISATAP tunnel:

1 Click System > IP Addressing > ISATAP Tunnel in the tree view to

display the ISATAP Tunnel page.

2 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:

Auto — Use the dynamic address.

None — Disable the ISATAP tunnel

Manual — Use the manual address assigned.

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