General Information about this Cisco ASA5520-BUN-K9
- Manufacturer: Cisco
- Model Number or SKU# ASA5520-BUN-K9
- Product Series: 5500
- Product Model: ASA 5520
- Product Name: ASA 5520 VPN/Firewall
- Product Type: Network Security/Firewall Appliance
Technical Information of Security Appliance
- 280000 x Concurrent Session
- 750 x IPSec VPN Peer
- 2 x Web VPN Peer
- 750 x Web VPN Peer
- 9000 x Concurrent Session
- 20 x Security Context
- 2 x Security Context
Interfaces/Ports for 5 Ports Security Appliance
- Total Number of Ports: 5
- USB: Yes
- Management Port: Yes
Network & Communication of Firewall Appliance
- Ethernet Technology: Fast Ethernet
- Network Standard: 10/100Base-TX
- Network Standard: 1000Base-T
- Number of Total Expansion Slots: 2
- Expansion Slot Type: SSM
- Number of SSM Slots: 1
Management & Protocols
- Manageable: Yes
- Standard Memory: 512 MB
- Memory Technology: DRAM
- Flash Memory: 64 MB
- Memory Card Supported: CompactFlash (CF) Card
Dimensions & Weight
- Height 1.8 Inch
- Width 17.5 Inch
- Depth 13.2 Inch
- Weight (Approximate) 20 lb
About Refurbished Products
Firewalls are used within a network to monitor both incoming and outgoing traffic by applying a set of rules/firewall policies to all data packets. Network firewall is an essential security device that is used to stop unauthorized access to private networks with access to the internet. Firewalls are particularly important for intranets, where they are configured to have all data entering or leaving a network passing through it.
Traffic emanating from nefarious or unsecured sources will be analyzed carefully and blocked to prevent the entry of viruses and malicious code. Firewalls act as frontline guards where information exchange with external devices occurs. A firewall ensures that a trusted source addresses reach the final destination. For example, source address 18.104.22.168 is allowed to reach destination 22.214.171.124 over port 22. The traffic is further filtered to ensure that only designated traffic reaches certain destination ports.
We have software and hardware firewalls, encryption accelerator modules, firewall expansion modules to ensure that your network and all its components are secured. A software firewall is installed on a computer and helps to regulate traffic through ports and applications. A software firewall is provided by an OS or network device manufacturer and will not be effective against sophisticated network breaches. The hardware networking firewall is actually physical equipment that is installed to act as protection between a network and the gateway. It could be a standalone product typically designed for corporate/enterprise networks or as a built-in component in a router or other networking devices. Hardware firewalls will have a minimum of 3 ports to allow connection to multiple systems. Bigger firewalls including 5 port, 6 port, and 8 port options or more are available depending on need and network configuration.
You can choose from any of the following types of firewalls according to your needs and network configuration.
Packet filtering firewalls: These are the most popular types of network firewall solutions. They work by analyzing data packets and allowing or blocking them per the established ruleset. Packets that match the source IP address and the destination IP addresses are allowed into the network. There are two types of packet filtering firewalls: stateful firewalls and stateless firewalls. Stateful firewalls are considered more secure and remember the information of previously passed packets. Stateless firewalls lack context and analyze packets independently, which predisposes them to hackers.
Next-generation (NGFW) firewalls: They offer deep packet inspection as well as additional functions including intrusion prevention, encrypted traffic inspection and antivirus. The deep packet inspection function goes beyond examining packet headers and will inspect data in the packet to ensure users can identify, categorize and stop packets containing malicious data.
Proxy firewalls: The proxy firewalls act as intermediaries between two systems and help filter network traffic at the application level. Clients must make a request to the firewall so that it is evaluated against the set security rules before being blocked or permitted. Specifically, proxy firewalls evaluate network traffic for HTTP and FTP protocols and employ deep packet inspection for purposes of identifying and stopping malicious traffic.
Network address translation (NAT) firewalls: These firewalls are used with multi-device setups and will allow all independent network addresses to use a single IP address to connect to the internet. The individual IP addresses are concealed for security purposes since attackers cannot capture the individual network addresses. NAT firewalls also act as intermediaries between multiple devices and external traffic.
Stateful multilayer inspection firewalls: SMLI firewalls filter packets at the transport, application layer, and network layer and compare them to trusted packets. SMLI firewalls work in a similar manner to NGFW firewalls by performing deep packet analysis and allowing a packet to pass only after passing each individual layer. Just as the name suggests, the firewall will ascertain the state of the communication to ensure it is taking place between trusted sources.
We help match businesses with the most suitable network firewall to establish full-spectrum security, ensure uninterrupted network availability, and allow robust access to applications on the cloud.
Here, you can check more available conditions of your desired product ASA5520-BUN-K9 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.
Other Available Conditions for this Part
ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.
What does ALLHDD.Com warranty cover?
30-days to 3 years warranty:
Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.
What is not covered by our warranty?
The reason why our warranty does not cover any problem caused by the following conditions:
(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;
(b) any misuse outside the instructions in the user manual for any specific product;
(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.
What is the Manufacturer/Brand Warranty?
In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).
For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.
We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.
Individual product warranty mentioned on each item product description page/detail page.
Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.
Shipping Options and Estimated Delivery Time
UPS Shipping Options:
FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days
UPS 3 Day Select®
Estimated delivery time: 3 business days
UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM
UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.
UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM
UPS Next Day Air® First Overnight - Early A.M
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UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday
FedEx Shipping Options:
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.
FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states
FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)
FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states
FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states
Worldwide Shipping Options:
UPS®/FedEx® International Economy
Estimated delivery time: 4-7 business days
UPS®/FedEx® International Priority
Estimated delivery time: 2-4 business days
UPS®/FedEx® Ground Shipping Canada
Estimated delivery time: 5-8 business days
- The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
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