2012年2月10日星期五

Cisco Firewalls Security, Essential for Business’s Safety


Owing to weak defense for net virus, firewall security plays a vital role in internet safety, so a reliable network asa 5520 aip 20 k9 helps your company or home net keep unauthorized visitors from accessing valuable business resources.

Instead of providing only point products that set a base level of security, Cisco embeds network firewall security throughout the network and integrates security services in all its products. As a result, network firewall security becomes a transparent, scalable, and manageable aspect of the business infrastructure.

As a leading designer and manufacturer of networking solutions, Cisco is always providing reliable integrated network firewall solutions with high performance to help secure various network environments.

Email and web Security, network Security, cisco asa5505 bun k9  secure access Control, secure mobility, security management, all these have been considered in designing a best solution to protecting your business’ net safety.

Cisco firewall security includes popular Cisco ASA 5500 series, Cisco PIX firewall security, Cisco IPS 4200 Series Sensor, etc.

More about Cisco ASA 5500 Series
Cisco ASA 5500 Series adaptive security appliances are purpose-built solutions that combine best-of-breed security and VPN services with the innovative Cisco Adaptive Identification and Mitigation (AIM) architecture.

Designed as a core component of the Cisco Self-Defending Network, the Cisco ASA 5500 Series provides proactive threat defense that stops attacks before they spread through the network, controls network activity and application traffic, and delivers flexible VPN connectivity. The result is a powerful multifunction network security appliance family that provides the security breadth and depth for protecting home office, branch office, small and medium-sized business, and enterprise networks while reducing the overall deployment and operations costs and complexities associated with providing this new level of security.

More info of Cisco asa5510 aip10sp k8 and other Cisco firewalls security you can see routerswitch.com or cisco.com to check. Price and purchasing details are also offered at Cisco firewall security at router-switch.com. 

More Notes:
Network Firewall: Keep Intruders Out
A reliable network firewall helps your company keep unauthorized visitors from accessing valuable business resources.

Instead of providing only point products that set a base level of security, Cisco embeds network firewall security throughout the network and integrates security services in all its products. As a result, network firewall security becomes a transparent, scalable, and manageable aspect of the business infrastructure.

Network Firewall: An Integrated Approach
Cisco offers several integrated network firewall solutions to help secure various network environments:
  • ASA 5500 Series: Controls network access at the WAN edge or within the LAN
  • Cisco IOS Firewall: Helps control application traffic
  • Firewall Services Module (FWSM) for Catalyst 6500 Series Switches and 7600 Series Routers: Allows a port to act as a firewall and protect traffic within the LAN or at the network perimeter
  • Embedded Firewall Services in the ASR 1000 Series Routers: Adds firewall functions at the network perimeter to protect network services
  • Web Application Firewall: Helps XML-based application traffic securely reach its destination

You can deploy these firewalls separately or combine them for a layered, defense-in-depth approach. Each network firewall is designed in accordance with the best practices and guidance developed for real-world solutions in the Cisco asa 5500 SAFE Architecture.

2012年1月16日星期一

How to Reset Password on a Cisco Router

How do I reset the password on my Cisco 1841 Router?
I bought a Cisco 1700 router from an auction, but there is a password. How can I reset the router to original factory specifications?

Sky sagem wireless router reset password I just got this sky wireless router second hand and it has a password set on it. i tried to press the reset button at the back but it does not do anything, it still comes as a password is set.

How to reset password on dlink wireless router I have a dlink wireless router model number DIR 825. It works well but I am trying to access internet on my ipod and the password i have set is incorrect, this also happened when i tried to access internet on my laptop. When i first set up my ps3 i don’t recall having to put a password in but this was when i first got the router. How do i reset the router password or find out what the password is AND if i reset the password or reset my router will my ps3 have to be reconnected or will it stay

How to reset password on a router I recently acquired a linksys CISCO1841-T1-V2 router (used) and need to know how to reset the password so that I can use it. Also, is there any way to modify a router to be useful as a cellwifi blocker, or as a signal booster?
...
----From Yahoo Answers

To reset password on a Cisco, D-link, Linksys, Netgear router is a very common problem among people who want a secure network environment for surfing on the internet. If you are confused with the complicated procedure to reset or change the password on a router, or if you are trying to configure a Cisco router, but a password is blocking you from enable mode, don't worry, just do the steps as follows, password reset on a router is no longer upset to everyone.

First, be informed that what you need
.Cisco Router
.Computer
.Internet Connection
.Blue Serial Cable

Guide for You to Reset Password on a Cisco Router
1. Download a program called Putty from the first resource site below. PuTTy is a terminal emulator application which can act as a client for the SSH, Telnet, rlogin, and raw TCP computing protocols (PuTTy on Wikipedia).httpen.wikipedia.orgwikiPuTTY

2. Connect one end of the blue serial cable to the cisco 1900 series router and the other to your computer. Open up the Putty program on your computer and select the radio button next to serial on the right-hand side of the start window. Click on the Open button in the bottom right-hand corner of the Putty start window to open the terminal.

3. Power the Cisco Router on. As soon as the router begins loading in the green and black Putty terminal window, press the Ctrl and Break keys simultaneously until its going into rommon mode.

4. Once in rommon mode, you have to change the configuration register number to make the router boot from a blank configuration file. For the 2800 series Cisco Routers, the command confreq 0x2142, changing the register number to 2142, worked. Search on cisco.com for information on your particular Cisco Router Series.

5. Type the restart command in rommon mode, which is reset. This will boot the router up again. When it is finished, you should be able to type en to get into enable mode without a password.

6. Once you change the running-config in RAM and save it to the startup-config in NVRAM, remember to change the configuration register number back to its default (usually 0x2102). This is important if you change anything on the running-config.  ---by Gabe

Easy five steps help you finish resetting password on a Cisco 1841 picture. Easy instruction, easy to follow.

2011年12月20日星期二

Cisco WS-C3560G-24TS-S, Ideal Cisco Switch Designed For Enterprise

l ws c3560x 48p l, belonging to Cisco Catalyst 3560 Switch family, is a fixed configuration, enterprise-class switch that provides availability, security, and quality of service (QoS) to enhance network operations. TheWS-C3560G-24TS-S is an ideal access layer switch for small enterprise wiring closets or branch office environments that are using their LAN infrastructure for the deployment of new products and applications such as IP telephones, wireless access points, video surveillance, building management systems, and remote video kiosks.

Cisco 3560 users can deploy network-wide intelligent services, such as advanced QoS, rate limiting, access control lists (ACLs), multicast management, and high-performance IP routing - while maintaining the simplicity of traditional LAN switching.

Basic Features of Cisco ws c3560x 24t s catalyst
Device Type    Switch - 24 ports - L3 - Managed
Enclosure Type    Desktop - 1U
Ports    24 x 10/100/1000 + 4 x Gigabit SFP
Performance    Forwarding performance (64-byte packet size) : 38.7 mpps
MAC Address Table Size    12K entries
Routing Protocol    RIP-1, RIP-2, HSRP, static IP routing, RIPng
Remote Management Protocol    SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, HTTP, SSH-2
Authentication Method    Kerberos, RADIUS, TACACS+, Secure Shell v.2 (SSH2)
Features    Full duplex capability, Layer 3 switching, Layer 2 switching, auto-sensing per device, IP-routing, DHCP support,datasheet ws c3560x 24t s auto-negotiation, ARP support, trunking, MPLS support, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, traffic shaping, manageable, Spanning Tree Protocol (STP) support, Rapid Spanning Tree Protocol (RSTP) support, Multiple Spanning Tree Protocol (MSTP) support, DHCP snooping, Dynamic Trunking Protocol (DTP) support, Port Aggregation Protocol (PAgP) support, Trivial File Transfer Protocol (TFTP) support, Access Control List (ACL) support, Quality of Service (QoS), DHCP server, Virtual Route Forwarding-Lite (VRF-Lite), MLD snooping, Dynamic ARP Inspection (DAI), Time Domain Reflectometry (TDR), Per-VLAN Spanning Tree Plus (PVST+), Cisco EnergyWise technology, Uni-Directional Link Detection (UDLD), Link Aggregation Control Protocol (LACP)
Compliant Standards    IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s
RAM    128 MB
Flash Memory    32 MB Flash
Status Indicators    Port transmission speed, port duplex mode, system, RPS (Redundant Power Supply), link/activity
Interfaces    24 x 10Base-T/100Base-TX/1000Base-T - RJ-45 ¦ 1 x console - RJ-45 - management ¦ 4 x SFP (mini-GBIC)
Power Device    Power supply - internal
Voltage Required    AC 120/230 V ( 50/60 Hz )
Power Consumption Operational    100 Watt
Features    Redundant Power System (RPS) connector
MTBF    230,700 hour(s)
Compliant Standards  c3560x switch CE, FCC Class A certified, TUV GS, GOST, BSMI CNS 13438 Class A, CISPR 24, cUL, NOM, VCCI Class A ITE, EN55024, EN55022 Class A, CISPR 22, CSA 22.2 No. 60950, CB, AS/NZS 60950-1, AS/NZ 3548 Class A, EMC, FCC Part 15, MIC, UL 60950-1, IEC 60950-1, EN 60950-1
Software Included    Cisco IOS IP Base
Service & Support    Limited lifetime warranty
Service & Support Details    Limited warranty - lifetime

Price and Purchasing Info
Product detail: Cisco Catalyst switch 3560 24 10/100/1000T + 4 SFP + IPB Image Conditions: New Sealed List Price: US$4,795.00
Wholesale Price: US$2,110.00
You Save: US$2,685.00 (56.00% OFF)
Supplier Available: YEJIAN TECHNOLOGY / RouterSwitch.com
MSN: cisco@router-switch.com
Tel: +852-3174-6166 (Hong Kong)
Fax: +852-3050-1066 (Hong Kong)
Email: cisco@router-switch.com (Sales Inquiries)
Website:http://www.router-switch.com/

2011年11月17日星期四

Cisco Catalyst 3560 Series Switches

The Cisco3560 switch is a line of fixed-configuration, enterprise-class switches that include IEEE 802.3af and Cisco prestandard Power over Ethernet (PoE) functionality in Fast Ethernet and Gigabit Ethernet configurations.

As an ideal access layer switch for small enterprise LAN access or branch-office environments, the Cisco Catalyst 3560combinesboth 10/100/1000 and PoE configurations for maximum productivity and investment protection while enabling the deployment of new applications such as IP telephony, wireless access, video surveillance, building management systems, and remote video kiosks.

Customers can deploy network wide intelligent services-such as advanced quality of service (QoS), rate limiting, access control lists (ACLs), multicast management, and high-performance IP routing-while maintaining the simplicity of traditional LAN switching.

The Cisco Catalyst 3560 is part of a larger and more scalable family of Cisco Catalyst switches that includes the Cisco Catalyst 3560-E Series switches, the Cisco Catalyst 3750 and 3750-E Series switches with Cisco StackWise technology, and the Cisco Catalyst 4500 and Catalyst 6500 modular switches. United by Cisco IOSSoftware, the entire family offers industry-leading availability, integrated security, optimized delivery, and manageability.

Software
The Cisco3560 series switch is available with one of two software images:
IP Base software includes advanced quality of service (QoS), rate limiting, access control lists (ACLs), Open Shortest Path First (OSPF) for routed access, and IPv6 functionality.
IP Services software provides a broader set of enterprise-class features, including advanced hardware-based IP Unicast and IP Multicast routing, as well as policy-based routing (PBR).

Simple Network Management
Available for the Catalyst 3560 Series, the Cisco Network Assistant is a centralized management application for switches, routers, and wireless access points. Free of charge, the application provides configuration wizards that greatly simplify the implementation of converged networks and intelligent network services.

Quick Look at Some Cisco Catalyst 3560 Models
WS-C3560V2-48TS-S:Port Speed: 10/100 with IEEE 802.3af and Cisco pre-standard PoE
48 ports
Uplinks: 4 SFP-based ports
Software Image: IP Base
WS-C3560G-48PS-S:Port Speed:10/100/1000 with IEEE 802.3af and Cisco prestandardPoE
24 ports
Uplinks: 4 SFP-based ports
IP Base
WS-C3560G-24PS-S:Port Speed: 10/100/1000
48 ports
Uplinks: 4 SFP-based ports
Software Image: IP Base
WS-C3560G-48TS-S:Port Speed: 10/100/1000
       24 ports
       Uplinks: 4 SFP-based ports
       Software Image: IP Base

More Cisco 3560 Switch Related
Cisco Catalyst 3560-E Series Switches:an enterprise-class line of standalone access and aggregation switches that ease the deployment of secure converged applications.
These switches combine 10/100/1000 and Power over Ethernet (PoE) configurations with uplinks that easily upgrade from 1 Gb Ethernet to 10 Gb Ethernet. They enhance worker productivity by enabling applications such as IP telephony, wireless, and video.
Features:
  • Ten-second 10 Gb upgrade
  • Support for 802.11n devices
  • Configurations with up to 20W PoE on all 48 ports
  • Modular fan and power supply for aggregation models
  • Highly available operation: dual hot-swappable modular power supplies and fans for fixed aggregation switches
  • Secure unified network services
  • Cisco EnergyWise technology

For further Cisco 3560 series switches’ specs, price, software, configuration, service, etc. Please visit Cisco Catalyst 3560 Series Switch at router-switch.com…

2011年10月19日星期三

What Cisco 1841 is Proud of?


The rauter cisco 1841 Integrated Services router is designed by Cisco for teleworkers, small to medium-sized businesses, small offices, and enterprise branches and head offices. The Cisco features two WAN slots, two fast Ethernet slots, IP BASE, 28 MB of DRAM and 32 MB of Flash memory.

Architecture
The roteador 1841 is based on the Cisco 1700 Series routers. According to Cisco, the 1841 has aa five-fold performance increase, compared to the 1700 series of routers. The Cisco 1841 features one internal Advanced Integration Module (AIM) slot, which allows users to connect additional hardware-accelerated encryption modules. The router supports two high-speed WAN interface card (HWIC) slots, which increase its data capability to up to 800 Mbps. The router also comes with dual high-speed Ethernet LAN ports.

Scalability and Flexibility
Cisco 1841, like other Cisco products, offers a high degree of scalability and flexibility. The router can be connected with a wide range of other Cisco products, or modules, via LAN and WAN connectors and interface cards. According to Cisco, the cheap cisco 1841 supports more than 30 existing modules and interface cards, and, furthermore, is designed to support those that are expected to appear in the marketplace in the near future.

Security Features
The router is equipped with advanced integrated security features that are incorporated into what Cisco calls the Cisco Self defending Network. The Cisco Selfdefending Network provides tight coupling among security and routing services throughout the network. The cisco 1841 integrated services router price comes with a built-in firewall. The device also supports Triple Data Encryption Standard, or 3DES, Advanced Encryption Standard, or AES, 128, 192, and 256, and DES cryptology.

2011年9月30日星期五

Cisco 1841 Router, Hot Sales Product Cisco 1800 Business Router


The Cisco 1841 routeris designed for secure data connectivity and provides significant additional value compared to prior generations of Cisco 1700 Series routers by offering more than a fivefold performance increase and integrated hardware-based encryption enabled by an optional Cisco IOS Software security image.

The Cisco 1841 dramatically increase interface card slot performance and density over the Cisco 1700 Series while maintaining support for more than 30 existing WAN interface cards (WICs) and multiplex trunk cards (voice/WICs [VWICs]-for data only on the cisco 1841 IOS).

The Cisco 1841 router offers embedded hardware-based encryption enabled by an optional Cisco IOS Software security image; further enhancement of VPN performance with an optional VPN acceleration module; an intrusion prevention system (IPS) and firewall functions; interfaces for a wide range of connectivity requirements, including support for optional integrated switch ports; plus sufficient performance and slot density for future network expansion and advanced applications as well as an integrated real-time clock.

Product Description
Cisco 1841 router
Device Type
Router
Form Factor
External - modular - 1U
Dimensions (WxDxH)
34.3 cm x 27.4 cm x 4.75 cm
RAM
128 MB (installed) / 384 MB (max) - SDRAM
Flash Memory
32 MB (installed) / 128 MB (max)
Data Link Protocol
Ethernet, Fast Ethernet
Network / Transport Protocol
IPSec
Remote Management Protocol
SNMP
Digital Signaling Protocol
ADSL over ISDN
Features
Cisco IOS IP Broadband , firewall protection, 128-bit encryption, hardware encryption, VPN support, VLAN support, Intrusion Prevention System (IPS), 256-bit encryption
Power
AC 120/230 V ( 50/60 Hz )
System Requirements
Microsoft Windows 98 Second Edition

P.S. If you would like a new sealed cisco 1841 modules, the competitive price offered at RouterSwitch.com is US$586.00 per. Visit Cisco 1841 to see more…

Notes: Router-switch.com is a World's Leading Cisco Supplier, founded in 2002. It sells new, used andrefurbished Cisco network equipment including Cisco routers 800/1800/1900/2800/2900/3800/3900 series, Cisco switches, Cisco Firewalls Security, Cisco IP Phones VOIP,etc.

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Cisco 1841 Details
Device TypeRouter
Enclosure TypeDesktop - modular - 1U
Data Link ProtocolEthernet, Fast Ethernet
Network / Transport ProtocolIPSec
Remote Management ProtocolSNMP, HTTP, SSH-2
FeaturesFirewall protection, cisco 1841 configuration hardware compression, VPN support, VLAN support, Intrusion Detection System (IDS), Intrusion Prevention System (IPS), wall mountable, Dynamic Multipoint VPN (DMVPN), Network Admissions Control (NAC)
PowerAC 120/230 V ( 50/60 Hz )
Dimensions (WxDxH)34.3 cm x 27.4 cm x 4.4 cm
Weight2.7 kg

2011年9月22日星期四

DoS Protection on Cisco 7600 Routers


The Cisco7600 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…