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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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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Top Questions from Customers and Solutions

Top Questions from Customers and Solutions

No.

Question

Solution

1

What Are the Causes for L2TP VPN Establishment Failure?

What Are the Causes for L2TP VPN Establishment Failure?
2

What Are the Reasons for L2TP VPN Service Interruptions?

What Are the Reasons for L2TP VPN Service Interruptions?
3

What Are the Possible Causes of L2TP Dialup Failure on a PC?

What Are the Possible Causes of L2TP Dialup Failure on a PC?
4

Can an L2TP-Capable Device Allocate Fixed IP Addresses to Terminals?

Can an L2TP-Capable Device Allocate Fixed IP Addresses to Terminals?
5

What Are the Causes for a GRE Tunnel Establishment Failure?

What Are the Causes for a GRE Tunnel Establishment Failure?
6

Why Cannot I Configure the GRE Protocol for a Tunnel Interface When Configuring a GRE Tunnel?

Why Cannot I Configure the GRE Protocol for a Tunnel Interface When Configuring a GRE Tunnel?
7

An AR Device Cannot Ping the Remote End After a VPN Instance Is Created on the AR

An AR Device Cannot Ping the Remote End After a VPN Instance Is Created on the AR
8

How Do I Configure Site-to-Site IPSec VPN?

How Do I Configure Site-to-Site IPSec VPN?
9

How Do I Configure Site-to-Multisite IPSec VPN?

How Do I Configure Site-to-Multisite IPSec VPN?
10

How Do I Configure L2TP over IPSec?

How Do I Configure L2TP over IPSec?
11

How Do I Configure GRE over IPSec/IPSec over GRE?

How Do I Configure GRE over IPSec/IPSec over GRE?
12

How Do I Set Up an IPSec VPN Tunnel Between an AR That Uses PPPoE Dialup and an AR That Has a Fixed IP Address?

How Do I Set Up an IPSec VPN Tunnel Between an AR That Uses PPPoE Dialup and an AR That Has a Fixed IP Address?
13

How Do I Set Up an IPSec VPN Tunnel Between Two ARs That Both Use PPPoE Dialup?

How Do I Set Up an IPSec VPN Tunnel Between Two ARs That Both Use PPPoE Dialup?
14

How Do I Set Up an IPSec VPN Tunnel Between a Public Network and a Private Network?

How Do I Set Up an IPSec VPN Tunnel Between a Public Network and a Private Network?
15

How Do I Configure IPSec VPN If the Peer Device Does Not Have a Fixed IP Address or If There Are Multiple Peer Devices?

How Do I Configure IPSec VPN If the Peer Device Does Not Have a Fixed IP Address or If There Are Multiple Peer Devices?
16

How Do I Determine Whether Data Flows Are Transmitted over an IPSec Tunnel?

How Do I Determine Whether Data Flows Are Transmitted over an IPSec Tunnel?
17

Does IPSec VPN Requires a License?

Does IPSec VPN Requires a License?
18

How Do I Configure IPSec-Protected Data Flows

How Do I Configure IPSec-Protected Data Flows
19

What Are the Possible Causes for Slow Service Access, Intermittent Service Access, and Service Interruptions After an IPSec Tunnel Is Established?

What Are the Possible Causes for Slow Service Access, Intermittent Service Access, and Service Interruptions After an IPSec Tunnel Is Established?
20

How Are Packet Statistics Collected When Both NAT and IPSec Are Deployed?

How Are Packet Statistics Collected When Both NAT and IPSec Are Deployed?
21

Why Statistics About IPSec-Protected GRE Packets Are Collected During Firewall Traffic Statistics Collection?

Why Statistics About IPSec-Protected GRE Packets Are Collected During Firewall Traffic Statistics Collection?
22

How Can I Configure L2TP?

How Can I Configure L2TP?
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Updated: 2019-05-10

Document ID: EDOC1000079719

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