There is no need to learn any mapping, since again on the other end there is only one remote end router. If I have time later on today I will going to set up a little lab and get back to you with the outputs. Active Inactive Deleted Static. If you encounter a technical issue on the site, please open a support case. Communities: Chinese Japanese Korean. All Rights Reserved. The Cisco Learning Network. View This Post.
Edited by Admin February 16, at AM. Top Rated Answers. Hey Vipin! Also check this out for more info. All Answers. Inverse ARP is enabled by default. Hi Vipin, Inverse-ARP is enabled by default on physical interfaces, but has no effect on point-to-point subinterfaces, because there is no Inverse ARP for point-to-point subinterfaces.
Regards, Aref. It is effect of design in a topology put a router no cisco, by example Best regards! Good luck! Hi Sandeep, That would be because a router would send the frames out on its DLCI and at the other end there is only one another rotuer that would receive them. Hi Vipin, vipin ha scritto: if you disable inverseARPin physical interface then we have to do manuall mapping. Current configuration : bytes!
Log In to Answer. Related Questions Nothing found. More locations. The serial interfaces support the following serial encapsulation methods:.
To define the encapsulation method, use the following command in interface configuration mode. Encapsulation methods are set according to the type of protocol or application you configure in the Cisco IOS software.
You can use the physical-layer async command to change the interface mode from the default synchronous mode to asynchronous mode. Specifies the mode of a low-speed interface as either synchronous or asynchronous. Note You cannot use the physical-layer async command for frame-relay encapsulation. When you make a transition from asynchronous mode to synchronous mode in serial interfaces, the interface state becomes down by default.
You should then use the no shutdown option to bring the interface up. This example shows how to configure frame relay encapsulation on a serial interface. This example shows how to configure Multilink PPP on a serial interface.
This example shows how to configure a serial interface on asynchronous mode. Skip to content Skip to search Skip to footer.
Book Contents Book Contents. Find Matches in This Book. PDF - Complete Book 1. Updated: February 6, Chapter: Configuring the Serial Interface. OFF Shows that the line protocol is down. OFF Indicates that loopback is not configured. PPP supports the following authentication protocols, which require a remote device to prove its identity before allowing data traffic to flow over a connection: Challenge Handshake Authentication Protocol CHAP —CHAP authentication sends a challenge message to the remote device.
The remote device encrypts the challenge value with a shared secret and returns the encrypted value and its name to the local router in a response message. Password Authentication Protocol PAP —PAP authentication requires the remote device to send a name and a password, which are checked against a matching entry in the local username database or in the remote security server database.
Frame Relay Encapsulation When Frame Relay encapsulation is enabled on a serial interface, the interface configuration is hierarchical and comprises the following elements: The serial main interface comprises the physical interface and port.
If you are not using the serial interface to support Cisco HDLC and PPP encapsulated connections, then you must configure subinterfaces with permanent virtual circuits PVCs under the serial main interface. Frame Relay connections are supported on PVCs only. Serial subinterfaces are configured under the serial main interface. A serial subinterface does not actively carry traffic until you configure a PVC under the serial subinterface. Layer 3 configuration typically takes place on the subinterface.
Point-to-point PVCs are configured under a serial subinterface. You cannot configure a PVC directly under a main interface. A single point-to-point PVC is allowed per subinterface. PVCs use a predefined circuit path and fail if the path is interrupted.
PVCs remain active until the circuit is removed from either configuration. Specifying a Synchronous Serial Interface Required Specifying Synchronous Serial Encapsulation Optional Specifying a Synchronous Serial Interface To specify a synchronous serial interface and enter interface configuration mode, use the following commands in global configuration mode. The serial interfaces support the following serial encapsulation methods: HDLC Frame Relay PPP To define the encapsulation method, use the following command in interface configuration mode.
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