Comprehensive Analysis of Two Cisco access routers

Access routers are currently one of the most popular routes, and their performance and features have been recognized by many people. Here we mainly analyze Cisco access routers with many applications. Both Cisco 1721 and 1720 adopt Cisco IOS software, which can provide a low-cost solution for small branches of small and medium enterprises and enterprises so that they can be simply designed, provides comprehensive functions to e-commerce applications.

The Cisco 1720 and 1721 routers are part of Cisco's end-to-end VPN solution. VPN can establish secure connections over the Internet to connect geographically dispersed Office organizations, business partners, and remote users, it also provides the same security, traffic priority setting, management, and reliability as the dedicated network.

By supporting industry-standard IPSec, L2 Tunneling Protocol L2TP), DES, and 3DES, Cisco Access Router technology provides powerful VPN solutions to ensure data confidentiality, integrity, and authenticity. The optional VPN hardware encryption module of the Cisco Access Router further optimizes the VPN encryption performance. By detaching an encryption task to the VPN Module, the Cisco Access Router processor can be released to handle other operations. The VPN Module can speed up encryption and transmit secure data, which is very important when 3DES encryption is used.

Cisco access routers provide integrated security functions, including status detection firewall and IDS. The latter is an optional Cisco IOS software feature. With the Cisco IOS software firewall, customers do not need to purchase or manage multiple devices, which simplifies network management and reduces operation costs. Cisco IOS software firewall security features include access control list AS), user authentication, authorization and billing, such AS password authentication protocol/Challenge Handshake Authentication Protocol [PAP/CHAP]), TACACS +, and remote access dialing user service RADIUS ). These security features provide users with the highest level of firewall protection.

Hardware VPN encryption module

All Cisco 1700 modules are equipped with an internal expansion slot to support an optional hardware VPN encryption module that can be installed on site. The VPN encryption module can take over the encryption tasks of the Cisco 1700 series server guard and provide performance up to T1/E1. VPN encryption module MOD 1700-VPN) supports up to 100 remote access tunnels.

Cisco IOS software feature set

The Cisco Access Router supports all Cisco IOS functions, including multi-protocol routing, QoS, VPN, firewall/IDS, traditional IBM protocols, and currently used applications. Cisco 1720 and 1721 Cisco access routers only provide basic Cisco IOS feature sets at the time of release. They can support IP routing and standards, such as network address translation NAT ), open Shortest Path First Protocol (OSPF), RADIUS, remote monitoring RMON), VLAN routing, weighted fair sequence of basic QoS functions), and next hop parsing Protocol [NHRP].

The Cisco ios ip enhancement feature set includes L2TP, L2F, and Border Gateway Protocol BGP) RSVP, Ethernet client-based PPP, NetFlow, Netware Link Service protocol NLSP), simple Multicast Routing Protocol SMRP), Web Cache Control Protocol WCCP) and Network Timing protocol NTP ). It also supports enhanced QoS functions such as LLQ, FRTS, CEF, WRED, DiffServ, MLPP, and LFI ).

In Special encryption feature sets, enhanced IP Sec 56 and enhanced IPSec 3DES can be provided. To create an ip vpn, we recommend that you use an IP/firewall function to enhance IPSec 56 or an IP/firewall to enhance IPSec 3DES. You can find a more detailed list of features and memory requirements for a given feature group in the Cisco IOS 1700 release notes. CiscoView is part of CiscoWorks2000 and is a Web-based tool that provides the real-time status of Cisco 1721 and 1720 in a graphical manner. It displays the monitoring information on the interface in detail, and provides dynamic status, statistical data, and comprehensive configuration information.

CiscoWorks small network management solution (SNMS) is a comprehensive Web-based network management solution that provides a powerful set of monitoring, configuration, and management tools, allows you to simplify the management of up to 20 Cisco network products, including switches, Cisco access routers, hubs, and access servers, for small and medium-sized enterprise networks and working groups. CiscoWorks SNMS is an ideal solution for enterprises that need to monitor servers from a single application and manage network optimization performance and improve network efficiency. With CiscoWorks SNMS, Cisco can provide a low-cost, interface-optimized solution to help Cisco users use their resources in the best way.