DoS Protection on Cisco 7600 Routers

The Cisco router is one of the most versatile High End routing machines. It is one of enterprise’s networking devices. If you take a look at Cisco website under the Routers Product Category, you will notice that the Cisco 7600 can be used in Data Centers, in Service Provider networks, in WAN aggregation or as Internet Edge router. In Service Providers can be used as Provider Edge (PE) in IP MPLS networks aggregating many Customer Edge (CE) router devices. Its modularity and high port capacity allows the 7600 to work as both Layer2 aggregation and as Layer3 high performance router.

In Service Provider networks one of the main concerns of network administrators is to protect the networking infrastructure from Denial of Service attacks. These DoS attacks are actually the most serious and popular security threat against Service Providers. buy used router Botnets are frequently the main source of such attacks. ICMP flooding, UDP flooding, spoofed addresses DoS, SYN attacks etc are a few examples of DoS or DDos (Distributed Denial of Service) attacks. Fortunately the Cisco 7600 router has many robust features and mechanisms to protect itself from such attacks.

In the company that I work (Service Provider) we have already implemented several security protection features on 7600 which are really effective against DoS attacks. A summary of the DoS protection mechanisms on 7600 follows below:

• Security Access Control Lists (ACL): Applied on interfaces to block traffic at Layer3/4 layers.
• QoS Rate Limiting: Using class-maps and policy-maps you can apply rate limiting to specific type of traffic (e.g ICMP)
• uRPF (unicast Reverse Path Forwarding): protects against spoofing attacks. sell cisco routers
• Traffic Storm Control: Protects against broadcast storm attacks.
• TCP Intercept: Protects against SYN attacks.
• Hardware-Based Rate Limiters: Work on PFC3 engines. These rate limiters protect the MSFC routing engine from various packets that can overload its CPU (configured with the mls rate-limit command)
• Control Plane Policing (CoPP): Again used for protection of the MSFC routing engine by applying rate limiting to packets that flow from the data plane to the control plane.

Of course in addition to the above you must not forget other important security mechanisms such as strong password policy, proper Authentication and Accounting, refurbished cisco router logging, SNMP security, Routing Protocols security (MD5 authentication in OSPF, BGP etc) etc. All of these technical issues must be based on a thorough and carefully written security policy.

Tips: If you need to know more about Cisco 7600 series, such as key features, specs, related software and price, or wannato buy cisco refurbished routers, you can visit router-switch.com to see more news and info of Cisco network equipment. Also,Cisco blog at router-switch.com share all kinds of news and info related to Cisco, computer and technology, hardware, networking, CISCO network equipment, cloud computing, etc. with all the Cisco fans and networking lovers…

How Much You Know about Cisco, Cisco Router?

Cisco Systems, Inc. is the worldwide leader in networking for the Internet. Cisco's Internet Protocol-based (IP) networking solutions are the foundation of the Internet and most corporate, education, and government networks around the world.

Cisco router provides the broadest line of solutions for transporting data, voice and video within buildings, across campuses, or around the world. Today, the Internet and computer networking are an essential part of business, learning and personal communications and entertainment.

Virtually all messages or transactions passing over the Internet are carried quickly and securely through Cisco equipment. Cisco solutions ensure that networks both public and private operate with maximum performance, security, and flexibility. In addition, Cisco solutions are the basis for most large, complex networks used by corporations, public institutions, telecommunication companies, and are found in a growing number of medium-sized commercial enterprises.

The company's tradition of innovation continues today with buy Cisco router creating leading products and key technologies that will make the Internet more useful and dynamic in the years ahead. These technologies include: advanced routing and switching, voice and video over IP, optical networking, wireless, storage networking, security, broadband, and content networking. In addition to technology and product leadership, Cisco is recognized as an innovator in how business is conducted. The company has been a pioneer in using the Internet to provide customer support, sell products, offer training, and manage finances.

Drawing upon the company's own Internet best practices and core-value of customer focus, Cisco has established the Internet Business Solutions Group (IBSG) dedicated to helping top business leaders transform their own businesses into e-businesses.

Cisco’sPopular Routers Now

Cisco 800 Series:Cisco 800 router, mainly including Cisco 860, Cisco 870, Cisco 880, Cisco 890, etc. have some common features below to check:

•       Built-in security, including content filtering

•       Cisco Configuration Professional for simplified management

•       WAN connection with multiple access options

•       Business Continuity with primary and backup connections on the Cisco 880 router, including 3G and ISDN

•       Four 10/100 Mbps Fast Ethernet managed switch ports with optional PoE on two switch ports

•       Up to 20 VPN tunnels

•       Integrated access point based on the IEEE 802.11n draft 2.0 standard that uses MIMO (Multi-Input, Multiple-output) to improve coverage for existing 802.11 b/g clients and new 802.11n clients

•       Cisco Unified Wireless Management Solution

•       Business continuity for both data and voice

•       Universal software image eases expansion capabilities with software activation

Cisco 1800 Series: Cisco 1800 has several models including 1801, 1802, 1803, 1811, 1812, 1841(most popular), 1861, all of them have some common features: a. Designed for small businesses or branch offices and to offer secure wireless networking; b. Multiple performance options based on local, remote, or broadband connections; c. Integrated security including encryption and protection against hackers; d. Virtual private networks for linking to partners, suppliers, and remote offices; e. Multiple options for adding reliability and option for reduced costs by using power from network cabling; f. Software upgrades to add new features and functions, and integrated switching capabilities.

Cisco 1900 Series: Cisco 1900 offers unparalleled total cost of ownership savings and network agility through the intelligent integration of market leading security, unified communications, wireless, and application services. This Cisco 1900 series integrated services router offers embedded hardware encryption acceleration, optional firewall, intrusion prevention, and application services. In addition, the platforms support the industries widest range of wired and wireless connectivity options such as T1/E1, xDSL, 3G, and GE.

Cisco 2800 Series: The Cisco 2800 Series routers, ideal for small to medium-sized businesses and enterprise branch offices, offer secure, wire-speed delivery of concurrent data, voice, and video services; offer features such as hardware-based VPN encryption acceleration, intrusion-protection and firewall functions, and optional integrated call processing and voice mail; offer a wide variety of network modules and interfaces, voice digital signal processor (DSP) slots, high-density interfaces for a wide range of connectivity requirements, and sufficient performance and slot density for future network expansion requirements and advanced applications.

More: The Cisco 2800 Series comprises four platforms: Cisco 2801, Cisco 2811, Cisco 2821, and Cisco 2851.

Cisco 2900 Series:As a type of router for small to medium enterprise with high performance, Cisco 2900 series ISRs offer embedded hardware encryption acceleration, voice- and video-capable digital signal processor (DSP) slots, optional firewall, intrusion prevention, call processing, voicemail, and application services. In addition, the platforms support the industries widest range of wired and wireless connectivity options such as T1/E1, XDSL, copper and fiber GE.

Cisco 3800 Series: The Cisco 3800 Integrated Services Routers extends Cisco Systems' leadership in multiservice routing, providing customers with unparalleled network agility, cisco 3800 series router performance, and intelligence. The Cisco 3800 routers feature embedded security processing, significant performance and memory enhancements, and new high-density interfaces that deliver the performance, availability, and reliability required for scaling mission-critical security, IP telephony, business video, network analysis, and Web applications in the most demanding enterprise environments. Built for performance, the 3800 series router deliver multiple concurrent services at wire-speed T3/E3 rates. cisco 3800 router

Cisco 3900 Series: Cisco 3900 router offers embedded hardware encryption acceleration, voice- and video-capable DSP slots, optional firewall, intrusion prevention, call processing, voicemail, and application services. In addition, the platforms support the industry's widest range of wired and wireless connectivity options such as T1/E1, T3/E3, xDSL, copper, and fiber Gigabit Ethernet.

Cisco 7200 Series: Cisco 7200 series router delivers exceptional performance and price, cisco 3800 price modularity, and scalability in a compact form factor with a wide range of deployment options. To support a wide range of density, performance, and service requirements, the Cisco 7200 Series offers exceptional price/performance (the new NPE-G2 Network Processing Engine aggregates services at up to 2 Mpps); a wide range of connectivity options and numerous features including serviceability and manageability; increased VPN performance with the new VPN Services Adapter; increased scalability and flexibility with the new Port Adapter Jacket Card.

Cisco 7600 Series: The Cisco 7600 Series is the industry's first carrier-class edge router to offer integrated, high-density Ethernet switching, carrier-class IP/MPLS routing, and 10-Gbps interfaces, benefiting enterprises and helping enable service providers to deliver both consumer and business services over a single converged Carrier Ethernet. cisco 3800 router price

Ideal for Enterprise WAN aggregation or service provider environments, Cisco 7600 series is the industry's first carrier-class edge router to offer integrated, high-density Ethernet switching, carrier-class IP/MPLS routing, and 10-Gbps interfaces, benefiting enterprises and helping enable service providers to deliver both consumer and business services over a single converged Carrier Ethernet network.

More info will be seen from http://www.router-switch.com/

Router? Switch? Be Clear the Difference Between Router and Switch.

When someone talk about wholesale Cisco router and switch with me, I’m very confused about this. Router Switch? What are they? What are they used for? Oh, My Lady Gaga, complicated.
However, after I have found some details of switch router, it seems a little interesting. Because both router and switch are tightly related to network, to internet. If you have PCs, if you need to email to somebody, or if you want to chat with friends, they are necessarily contained. Haha, eager to get more information of router and switch. I search many details and “the difference between routers cisco and switch” through Google. Now, I’d like share some key info about router and switch.

 
What’s a router-switch? A router is a more sophisticated network device than either a switch or a hub. It is a device that forwards data packets across computer networks, and perform the data "traffic directing" functions on the Internet. On the Internet or on a large corporate network, for example, routers serve as intermediate destinations for network traffic. These routers receive TCP/IP packets, look inside each packet to identify the source and target IP addresses, then forward these packets as needed to ensure the data reaches its final destination. Routers for home networks (often called broadband routers) also can join multiple networks. These routers are designed specifically to join the home (LAN) to the Internet (WAN) for the purpose of Internet connection sharing. In contrast, neither hubs nor switches are capable of joining multiple networks or sharing an Internet connection.
And switch? A network switch or switching hub is a computer networking device that connects network segments. The term commonly refers to a multi-port network bridge that processes and routes data at the data link layer (layer 2) of the OSI model. By paying attention to the traffic that comes across it, it can "learn" where particular addresses are. For example, if it sees traffic from machine A coming in on port 2, it now knows that machine A is connected to that port and that traffic to machine A needs to only be sent to that port and not any of the others.
The two pieces of equipment (router and switch) look so similar and perform some similar functions, but each has its own distinct function to perform on a network. To be simple, switches create a network. Routers connect networks. A router links computers to the Internet, so users can share the connection. A router acts as a dispatcher, choosing the best path for information to travel so it's received quickly.
So what do you need? Buy cisco router or switch? After got these above, you can make sure that which you need. And more information of Cisco sale, you can visit RouterSwitch.com

Cisco Linksys E4200 wireless router

cisco router  Linksys E4200 router is aimed at advanced users, but we nevertheless found it easy to set up and use.

It uses the fastest 802.11n wireless network standard and can work in both the normal 2.4GHz wireless frequency and the less-congested 5GHz frequency simultaneously to improve your in-home signal.

Computers with suitable equipment can connect at even faster speeds but only Intel Ultimate Wifi Link adapters support this at present (see the end of this review for a list of laptops with the adapters built-in).

The two-tone case is discreet: the antennas are housed inside so nothing pokes out, the only part at the front is a white-illuminated logo to indicate status, and even the lights on the four rear network ports can be turned off. It's intended for cable internet users or those with a separate broadband modem with a network socket, so ADSL users will have to use it alongside their existing modems or routers.

It includes the excellent cisco871 Connect software that made setup and configuration easy and provided quick access to the main features. The router can also be used without this software by accessing its configuration pages in a web browser. Previous versions of this program had some annoying quirks but these have now all been fixed.

Running Cisco Connect launches an illustrated wizard that shows users how to plug in the router, and then automatically discovers and configures it. This only took a few minutes, and it worked equally well over wireless or a network cable. Even complete novices should have no trouble getting up and running.

When setup had finished the Cisco Connect main screen let us add computers, printers and other devices to the network. For PCs, an Easy Setup Key containing the router's wireless security details can be created on a USB memory key. Each connected PC can then be assigned parental controls, restricting the times of web access or blocking specific websites.

Another useful feature is the guest wireless network, a separate network that is perfect for allowing visiting friends or family to use the internet while keeping your PCs secure.

There is also a link to the advanced settings that open in a web browser and allow advanced users to configure features such as the USB storage. Any USB disk or memory key can be plugged into the router's USB socket and shared over the network or the internet, but setting this up was not easy and it's a shame it wasn't included in the  cisco 871 Connect software. Disappointingly, you cannot plug a printer or webcam into the USB socket and have it shared.

The E4200 is an expensive router but the fast networking, parental controls and USB sharing are worth paying for.