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This section describes the function and displays the syntax of each STUN command. For more information about defaults and usage guidelines, see the corresponding chapter of the Router Products Command Reference publication.
Use the encapsulation stun interface configuration command to enable STUN encapsulation on a specified serial interface.
locaddr-priority-list list-number address-number queue-keyword
no locaddr-priority-list
Use the locaddr-priority-list interface configuration command to establish queuing priorities based upon the address of the logical unit (LU). Use the no form of this command to cancel all previous assignments.
| list-number | Arbitrary integer between 1 and 10 that identifies the LU address priority list. |
| address-number | Value of the LOCADDR= parameter on the LU macro, which is a 1-byte address of the LU in hexadecimal. |
| queue-keyword | Priority queue type: high, medium, normal, or low. |
[no] priority-group list-number
Use the priority-group interface configuration command to assign a priority group to an interface. Use the no form of this command to remove assignments.
| list-number | Priority list number assigned to the interface. |
[no] priority-list list-number protocol ip queue-keyword tcp
tcp-port-number
Use the priority-list global configuration command to establish STUN queuing priorities based on the TCP port. Use the no form of this command to revert to normal priorities.
| list-number | Arbitrary integer between 1 and 10 that identifies the priority list selected by the user. |
| queue-keyword | Priority queue type: high, medium, normal, or low. |
| tcp-port-number | STUN port and priority settings are as follows: high (1994), medium (1990), normal (1991), and low (1992). |
[no] priority-list list-number stun queue-keyword address
group-number address-number
Use the priority-list stun address global configuration command to establish STUN queuing priorities based on the address of the serial link. Use the no form of this command to revert to normal priorities.
| list-number | Arbitrary integer between 1 and 10 that identifies the priority list selected by the user. |
| queue-keyword | Priority queue type: high, medium, normal, or low. |
| group-number | Group number that is used in the stun group command. |
| address-number | Address of the serial link. For an SDLC link, the format is a 1-byte hex value (for example, C1). For a non-SDLC link, the address format can be specified by the stun schema command. |
Use the show stun privileged EXEC command to display the current status of STUN connections.
Use the show stun sdlc EXEC command to display the status of the STUN interfaces using SDLC encapsulation and whether proxy polling is enabled for that interface.
Use the stun cos-enable global configuration command to prioritize traffic by allowing the router to read SNA Format Identification 4 (FID 4) frames. Use the no form of this command to disable COS.
Use the stun group interface configuration command to place each STUN-enabled interface on a router in a previously defined STUN group. Use the no form of this command to remove an interface from a group.
| group-number | Integer in the range 1 through 255 |
Use the stun keepalive-count global configuration command to define the number of times to attempt a peer connection before declaring the peer connection to be down.
| count | Number of connection attempts. The range is between 2 and 10 retries. |
[no] stun peer-name ip-address
Use the stun peer-name global configuration command to enable STUN on IP addresses. Use the no form of this command to disable STUN on an IP address.
| ip-address | IP address by which this STUN peer is known to other STUN peers |
stun protocol-group group-number {basic | sdlc | schema} [sdlc-tg]
no stun protocol-group
Use the stun protocol-group global configuration command to create a protocol group. Use the no form of this command to remove an interface from the group.
| group-number | Integer in the range 1 through 255. |
| basic | Indicates a non-SDLC protocol. |
| sdlc | Indicates an SDLC group. |
| schema | Indicates a custom protocol. |
| sdlc-tg | (Optional) Used in conjunction with the sdlc keyword.Identifies the group as part of an SNA Transmission Group. |
stun remote-peer-keepalive seconds
no stun remote-peer-keepalive
Use the stun remote-peer-keepalive global configuration command to enable detection of the loss of a peer.
| seconds | Keepalive interval, in seconds. The range is 1 to 300 seconds. The default is 30 seconds. |
stun route address address-number interface serial interface-number
[direct]
no stun route address address-number interface serial
interface-number
Use the stun route address interface serial interface configuration command to forward all HDLC traffic of a serial interface. Use the no form of this command to disable this method of HDLC encapsulation.
| address-number | Address of the serial interface. |
| interface-number | Number assigned to the serial interface. |
| direct | (Optional) Forwards all HDLC traffic on a direct STUN link. |
[no] stun route address address-number tcp ip-address [local-ack]
[priority]
Use the stun route address tcp interface configuration command to specify TCP encapsulation and optionally establish SDLC local acknowledgment (SDLC Transport) for STUN. Use the no form of this command to disable this method of TCP encapsulation.
| address-number | Number that conforms to TCP addressing conventions. |
| ip-address | IP address by which this STUN peer is known to other STUN peers that are using the TCP as the STUN encapsulation. |
| local-ack | (Optional) Enables local acknowledgment for STUN. |
| priority | (Optional) Establishes the four levels used in priority queuing: low, medium, normal, and high. |
stun route all interface serial interface-number [direct]
Use the stun route all interface serial interface configuration command to encapsulate and forward all STUN traffic using HDLC encapsulation on a serial interface.
| interface-number | Number assigned to the serial interface. |
| direct | (Optional) Indicates that the specified interface is also a direct STUN link, rather than a serial connection to another peer. |
Use the stun route all tcp interface configuration command to use TCP encapsulation and forward all STUN traffic on an interface regardless of what address is contained in the serial frame.
| ip-address | IP address by which this remote STUN peer is known to other STUN peers. Use the address that identifies the remote STUN peer that is connected to the far serial link. |
[no] stun schema name offset constant-offset length address-length
format format-keyword
Use the stun schema offset length format global configuration command to define a protocol other than SDLC for use with STUN. Use the no form of this command to disable the new protocol.
| name | Name that defines your protocol. It can be up to 20 characters long. |
| constant-offset | Constant offset (in bytes) for the address to be found in the frame. |
| address-length | Length (in bytes) in one of the following address formats: decimal (4 bytes) hexadecimal (8 bytes) octal (4 bytes) |
| format-keyword | Format to be used to specify and display addresses for routes on interfaces that use this STUN protocol. The allowable format keywords are: decimal (0 through 9) hexadecimal (0 through F) octal (0 through 7) |
Use the stun sdlc-role primary interface configuration command to assign the router the role of SDLC primary node. Primary nodes poll secondary nodes in a predetermined order.
Use the stun sdlc-role secondary interface configuration command to assign the router the role of SDLC secondary node. Secondary nodes respond to polls sent by the SDLC primary by transmitting any outgoing data they might have.
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