#MODEM VS ROUTER FIREWALLS SOFTWARE#
#MODEM VS ROUTER FIREWALLS PASSWORD#
#MODEM VS ROUTER FIREWALLS TV#

The combination of these two types is usually safer and more efficient. The internal network does not communicate with outside network directly. Such firewalls are like a proxy server which interconnect the two networks.

#MODEM VS ROUTER FIREWALLS SOFTWARE#

Some other firewalls are software applications and services. So unwanted ports and IP addresses are forbidden. One common type of hardware firewall allows you define the blocking rules, such as by IP address, by Transmission Control Protocol (TCP) or User Diagram Protocol (UDP) of the port. While routers without firewall capability blindly pass traffic between two separate networks, firewalls monitor the traffic and block unauthorized traffic out.įigure 6: Internal firewall separates important data from others.

Generally, a network firewall protects an internal/private LAN from outside attack and prevents important data to leak out. Network firewall sets up a barrier between an intranet/LAN and the Internet. So the point of which device to use should consider its scalability, resiliency, software features, hardware performance, etc.įirewall-The One Who Safeguard Your Networkįirewalls are literally walls used to block fires in emergency. On the other hand, you can have switching modules on routers to make it work like a 元 switch according to your needs. An appropriate router can do the job well at a fair cost. On one hand, for instance, for a small network with 10-100 users, an 元 switch is an overkill with regard to the cost or the functionality. Every device has its own features and the choice depends on many factors. Someone may ask why not just use an 元 switch then you need no router at all. routers? Because Layer 3 switches are able to do routing. A router subdivides the network into two or more smaller networks that are connected by it, and it won’t allow the broadcast to flow between subnets.įigure 4: Broadcast storm occurs when there is a large amount of broadcasts. When the amount of broadcasts is too large, chaos can occur in the whole network. Without a router, a broadcast will go to every port of every device and be processed by every device. Routers can “translate” these packets from different networks so they can understand each other. The networks encapsulate data in different methods so they cannot communicate directly. Apart from the most commonly used Ethernet, there are many other different networks, such as ATM and Token Ring. Otherwise, the router cannot recognize which device is requesting what.

#MODEM VS ROUTER FIREWALLS TV#

However, the private IP addresses of your desktop, laptop, iPad, TV media box, network copier are completely different. When you browse the Internet, you’re identified to the outside world by the public IP address and your private IP address is protected. Your Internet provider assigns you one router IP address, which is a public IP address. Generally, your router is provided by your Internet Service Providers (ISP).

#MODEM VS ROUTER FIREWALLS PASSWORD#

Also set a new password for the (WAP)router and plug it into the switch.Figure 3: How routers route packets from the source to the destination. Set the WAP to no DHCP, LAN address 192.168.42.10, gateway 192.168.42.1, netmask to 255.255.255.0, your wireless encryption to WPA2, and a long messy password for the wireless. Set the LAN address of the router to 192.168.42.1, the netmask to 255.255.255.0, the DCHP range to 192.168.42.101 through 192.168.42.151 (or higher if you need more, but that seems unlikley), your wireless encryption to WPA2, and a long messy password for the wireless. So, for a concrete example with numbers (which are not cast in stone, but will work): pick 192.168.42.0/24 as your network, and think fondly of Douglas Adams. Some can actually be told that you are using them as a WAP, the rest work just fine if nothing is plugged into the WAN, they have an address of their own, and DHCP is turned off. It needs a unique LAN IP address in the correct range, and whatever wireless settings you'll set. Plug between the/a LAN port and the Switch. The router that you want to use only as a WAP should NOT have anything plugged into the WAN port, and should NOT have DHCP enabled. If you are using two routers, but want only one to act as the router while the other acts as a WAP (only) but is not a dedicated WAP (if you already happen to have two wireless routers - otherwise, buy a WAP if you are buying) the one acting as a router would be set up normally - you might or might not want to veer away from defaults a bit (ie, there are many, many private NAT networks - not all of them need to be 192.168.1.0 - there's plenty of options other than that particular one, but it's a common default.)

Modem vs router firewalls