Dell PowerConnect 3524

456 Tunnel
Command Mode
Interface Tunnel Configuration mode.
User Guidelines
The configured source IPv4 address is used for forming the tunnel interface identifier. The interface
identifier is set to the 8 least significant bytes of the SIP field of the encapsulated IPv6 tunneled packets.
Example
The following example sets the local (source) tunnel interface IPv4 address.
tunnel isatap query-interval
The tunnel isatap query-interval Global Configuration mode command configures the interval between
DNS Queries (before the IP address of the ISATAP router is known) for the automatic tunnel router
domain name. Use the no form of this command to return to default.
Syntax
• tunnel isatap query-interval seconds
• no tunnel isatap query-interval
• seconds — Specify the number of seconds between DNS Queries. (Range: 10 – 3600)
Default Configuration
10 seconds.
Command Mode
Global Configuration mode.
User Guidelines
This command determines the interval of DNS queries before the IP address of the ISATAP router is
known. When the IP address is known the robustness level that is set by the tunnel isatap robustness
global configuration command determines the refresh rate.
Example
The following example configures the interval between DNS Queries for the automatic tunnel router
domain to 60 seconds.
Console (config)# interface tunnel 1
Console (config-tunnel)# tunnel source auto
Console (config)# tunnel isatap query-interval 60
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