Billion BiGuard VPN Client

Chapter 5: Troubleshooting

Introduction

The goal of this section is to help IT Managers, system administrators or users facing VPN configuration issues of their IPSec VPN network. All information concerning VPN connection state, VPN trace or VPN Logs can be found in the "Console" Window of BiGuard VPN Client.

Tools in case of trouble

Configuring an IPSec VPN tunnel can be a hard task. One missing parameter can prevent a VPN connection from being established. Some tools are available to find source of troubles during a VPN establishment.

A good network analyzer: ethereal

Ethereal is free software that can be used for packet and traffic analysis. It shows IP or TCP packets received on a network card. This tool is available on website: http://www.ethereal.com/. It can be used to follow protocol exchange between two devices. For installation and use details, read its specific documentation.

VPN IPSec Troubleshooting

« PAYLOAD MALFORMED » error (wrong Phase 1 [SA])

114915 Default sysdep_app_open: Init Connection for : Cnx-Cnx-P2 Cnx-remote-addr

114915 Default sysdep_app_open: IPV4_SUBNET Network 192.168.1.1

114915 Default sysdep_app_open: IPV4_SUBNET Netmask 255.255.255.0 114920 Default (SA Cnx-P1) SEND phase 1 Main Mode [SA][VID] 114920 Default (SA Cnx-P1) RECV phase 1 Main Mode [NOTIFY] 114920 Default exchange_run: exchange_validate failed

114920 Default dropped message from 195.100.205.114 port 500 due to notification type PAYLOAD_MALFORMED

114920 Default SEND Informational [NOTIFY] with PAYLOAD_MALFORMED error

If you have an « PAYLOAD MALFORMED » error you might have a wrong Phase 1 [SA], check if the encryption algorithms are the same on each side of the VPN tunnel.

« INVALID COOKIE » error

115933 Default message_recv: invalid cookie(s) 5918ca0c2634288f 7364e3e486e49105 115933 Default dropped message from 195.100.205.114 port 500 due to notification type INVALID_COOKIE

115933 Default SEND Informational [NOTIFY] with INVALID_COOKIE error

If you have an « INVALID COOKIE » error, it means that one of the endpoint is using a SA that is no more in use. Reset the VPN connection on each side.

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Chapter 5: Troubleshooting

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Billion Electric Company CO1 user manual Introduction, Tools in case of trouble, VPN IPSec Troubleshooting

CO1 specifications

Billion Electric Company, also known as CO1, has established itself as a prominent player in the global market, particularly in the fields of telecommunications, energy management, and smart technology solutions. Founded in the late 1980s in Taiwan, the company has grown from a local manufacturer of electronic components to a significant provider of advanced technological solutions. Its commitment to innovation has enabled it to stay ahead in an ever-evolving industry characterized by rapid changes and competitive pressures.

One of the main features of Billion Electric Company is its extensive product portfolio, which includes networking equipment, broadband devices, and energy management systems. The company is particularly well-known for its high-quality routers, modems, and gatekeepers that support various broadband access technologies, such as DSL, fiber-optic, and wireless communications. This wide range of products demonstrates Billion’s capability to cater to diverse market needs, making it a preferred choice for service providers and enterprises globally.

Billion Electric has also made significant strides in the field of smart energy technologies. The company offers innovative solutions that enhance energy efficiency and promote sustainability. Its energy management systems facilitate real-time monitoring and control of energy consumption, helping businesses reduce costs while minimizing their environmental impact. This alignment with global sustainability goals has further solidified Billion's reputation as a responsible technology partner.

In terms of technology, Billion Electric Company employs cutting-edge research and development practices to drive its innovation agenda. The company invests heavily in R&D to develop next-generation products that meet the demands of the smart city ecosystem. Technologies like IoT (Internet of Things), AI (Artificial Intelligence), and cloud computing are some of the cornerstones of Billion's product development strategy. These technologies enable seamless connectivity and intelligent decision-making, which are essential for modern networking and energy management systems.

Billion Electric Company is also characterized by its dedication to customer satisfaction. The company engages closely with its clients to understand their requirements and provide tailored solutions. This customer-centric approach is evident in its robust support systems, which ensure that clients receive timely assistance and training on products.

In summary, Billion Electric Company CO1 stands out in the realms of telecommunications and energy management through its diverse product offerings, commitment to innovation, and focus on customer satisfaction. As the world continues to embrace digital transformation and sustainable practices, Billion Electric is well-positioned to contribute to a more connected and energy-efficient future.