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Questions tagged [router]

A device that connects two or more networks and is capable of forwarding data packets to a destination based on information contained within a packet and internal routing tables.

Routers are devices that connect networks and make decisions on where to send incoming data packets, based on the address information contained in the packet and internal routing information.

The most common form are SoHo routers, which connect home or small office networks to the internet and provide routing for all devices on the home/office network. More advanced routers connect large office networks, and at the high end of the scale routers connect large segments of telecommunication networks all over the world at high speed.

Routers are not limited to TCP/IP networks, they can be found in any kind of network.

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Unified Threat Management

This might be a simple question: On what layers of the OSI model does Unified Threat Management work? And what devices do you recommend for using this? Thanks, Dempsey
Dempsey FoxDie Van Assche
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Broadband router with builtin cellular backup

At my dad's workplace they often have internet outages that cause them to lose business. My dad wants to have a 3G internet connection as backup to their primary connection. They want to have it automatically kick in when the primary connection is…
Ram Rachum
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How to configure a Windows Server 2008 along with a router?

I have network setup like the following diagram, how do I set the DHCP in server so that user can access Windows share and also access internet? [server]<========> [client1]<=======>[network…
fxam
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Routing DSL modem to web server

I am using "D-LINK DSL-2520U ADSL2+ ETHERNET/USB COMBO ROUTER" broadband modem. I hosted a web site using a web server in my PC (port 80). When I tried to access my external IP from my mobile, it took me to the DSL router admin screen. I tried to…
yottabrain
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DDWRT/iptables - block outgoing connections on ALL ports except 80 and 443

A bit lost with ddwrt here... It's actually straight-up iptables but I can't figure it out. All I need to do is: Block ALL outgoing connections on ALL ports, except 80 and 443. Block ALL incoming connections -- nobody should be able to connect…
ezuk
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How do I resolve a DHCP issue with a fon router?

I don't know how many people are familiar with fon (this is totally not a plug, because it basically doesn't work ever) but I've been using a WRT54G router from fon with the final fon firmware for 4 years now, and a Fonera (1) for 3 years. I never…
dlamblin
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How to change port mappings in SBS 2008

For some unknown reason, my SBS 2008 port mappings are incorrect! My SBS 2008 server uses the (static) IP address 192.168.0.10, but important ports (80, 443, 4125) are pointing to 192.168.0.20. My router (NETGEAR WPN824v2) is managed by SBS 2008 and…
Philipp Schmid
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Why two addresses in configuring a GRE tunnel?

As I can find in this support document, in order to configure a GRE tunnel between two routers R1 and R2, I issue the following sets of commands (mtu and mss omitted), R1 R1(config)# interface Tunnel1 R1(config-if)# ip address 172.16.1.1…
Masroor
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Debian router drops connection

I have a home network with a debian server running kernel 3.8 setup as a router, doing DHCP, DNS-caching, samba and Squid. The motherboard is a Gigabyte GA-Z77X-UD5H with two ethernet ports, one Intel and one Atheros. After the upgrade to kernel 3.8…
prinsen
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Juniper Router - Load Balancing

I have a single Juniper router which is connected to multiple external ASs. I am looking to load balancing for best way to automatically move traffic away from one link the others (without hardcoded static routes) and have a few questions about the…
Programster
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Use LAN DNS server when unqualified domain names are requested

I'd like to be able to serve unqualified domain names like "pos" or "website" from my DNS server on my LAN and have regular DNS queries like "google.com" be served from my router. On my router, under "DHCP" settings, I can assign a primary and…
JakeTheSnake
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Slow internet connection - what to do?

These are the network specifications: 6 desktops, all with Windows XP Professional SP2 3 of these desktops have wireless cards 3 of them are connected through Ethernet cable to router Router: LinkSys WRT54G Bill says "3 Megas Broadband…
Maria Ines Parnisari
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how to connect two different lans

I have in my office two different LANS with two different ISP. Lan A is faster than Lan B. We want to share files and printers and everything as if it was only one LAN, the thing is that we don't want to share the fast ISP. I have a linksys…
franko_camron
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Can I use a software router to filter traffic coming from a Cisco router?

I have the following topology working but i would like to be able to filter the traffic using a software router such as Zentyal. Current [INTERNET] === [Cisco 2600] ===[Cisco Switch] === [Machines] Proposed [INTERNET] ===[Zentyal] === [Cisco 2600]…
Z Holt
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Restricted cone NAT

If two hosts X and Y are connected to the Internet with NAT. Both NATs are of cone-restricted type. Now assume there's a server Z which stores all translated public addresses of X and Y. Both X and Y can get each other's translated public IP address…
sc1013
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