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AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
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The Device Incorrectly Forwards L2TP Packets

The Device Incorrectly Forwards L2TP Packets

Possible cause:

If the VT interface on the LNS is configured with a non-32-bit subnet mask, the VT interface forwards all the packets matching the network segment route if there is only one VPN dial-up user, even if the packets are not destined for end users. If there are multiple VPN dial-up users, the device does not forward the packets because it cannot determine the destined VPN user based on the network segment route.


Set the subnet mask of the VT interface to 32 bits.

Updated: 2019-05-10

Document ID: EDOC1000079719

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