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1. Overview The configuration file of the network devices needs to be backed up in a timely manner to ensure device security, reliability, and availability of services. In case of a fault occurs on a device, the backup configuration file can be restore to the device to quickly for the…
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1. Overview To achieve the high availability purpose of site-to-site IPSec VPN between head office and remote branch offices, we need to combine Hot Standby Router Protocol (HSRP) with IPSec protocol. VPN devices at the remote branch offices will peer with virtual IP address of HSRP in head office….
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1. Overview To achieve the high availability purpose of site-to-site IPSec VPN between head office and remote branch offices, we need to combine Hot Standby Router Protocol (HSRP) with IPSec protocol. VPN devices at the remote branch offices will peer with virtual IP address of HSRP in head office….
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1. Overview Virtual Router Redundancy Protocol (VRRP) is the open standard version of Cisco proprietary protocol called HSRP, so it can support products from different vendors. VRRP works exactly the same as HSRP in providing a gateway using one virtual IP address. One of the routers will work as…
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1. Overview Hot Standby Router Protocol (HSRP) is a Cisco proprietary protocol developed for a gateway redundancy of a subnet. HSRP use multiple routers together to serve as one gateway using one virtual IP address. One of the routers will work as the active gateway, and in case the…
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1. Overview In the previous article we had implemented IPSec VPN site-to-site between head office and branch office. Normally as the business grow, there are more branch offices to be created. So, we need to configure another IPSec VPN site-to-site between head office and the new created branch office….
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1. Overview The price of Cisco ASA firewall appliance is very expensive comparing to Cisco router. Due to budget limitation, some companies would prefer to use Cisco router as a VPN gateway instead of Cisco ASA firewall appliance. In this article will demonstrate how to configure site-to-site IPSec VPN…
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1. Overview In the previous article we had talked about configuring IPSec VPN site-to-site between head office and branch office with two Cisco ASA firewall appliances. Sometime, there is a case that both sites are not using the same devices. In this article will show you how to configure…
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