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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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logging HTTP traffic with tcpdump on a router

I have a linux box acting as a router between many clients and the internet, and i need to pull some statistics on usage: I need to log which internal IPs access which addresses externally. I use this to check which internal IPs access which…
Jarmund
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Cisco SSL VPN with Windows 7 Client?

I have a Cisco ISR model 1841 running IOS 12.4 I would like to replace my aged SonicWall pro2040 with it. The main problem I am trying to find a solution to is whether or not I am first create an SSL VPN server on the 1841. From what I found that is…
AtomicPorkchop
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Cisco router 877w local subnet route

i have a local network of 192.168.2.1-254 running on a device called MSONA (all in one small business solution), our internet gateway cisco router is on 192.168.0.253. If i want the router to backup its running config to a tftp server on…
user210774
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Connection Reliability of Router VM during VMotion

I've moved 'typical' virtual machines between hosts with VMware VMotion and not experienced any network related issues with clients accessing those vm's. Does anyone have comments about running a VM serving as a router(Vyatta, linux, BSD, etc) and…
Jeff Hengesbach
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Layer 3 Switches and VLAN

We're planning a new networking for the new office and, since I want to manage the three floor with 3 different VLAN Im planning to handle it with a layer 2 switch ( I looked for the cisco 200 series) . My question is if this layer 2 switches of…
0wn3r
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How to setup IP range given by ISP?

At work our ISP has given us a block of IPs and I was wondering how I go about mapping them. Currently out setup is that the ISPs fiber goes into out router which is then routed throughout the office. They have given us the following…
Chad Moran
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Dyndns name not being resolved from LAN

I've got following network in my place: ONT ---- Linksys E4300 @ DDWRT ---- Synology DS211J NAS (DynDNS client running) + 3 client WiFi machines Problem is following: When I run DynDNS on the router, IP is not getting updated. When I run DynDNS at…
Random
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IP Tables though Simple Router Machine

I have being setting myself up a router, for mainly for dns+dhcp functionality (mess about with alot of virtual machines). I have two interfaces eth0 and eth1. Eth0 can be see as the WAN with eth1 for the internal network. This is my current…
Simon Bennett
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Importance of loopback ip address

Why do we configure loopback IP address in router RIP and router OSPF configuration ? What is the significance of configuring it ?
pankmish
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Mara systems border firewall with pfSense

I just bought a used Mara systems Border firewall with pfSense installed on it. I want to reset it or reinstall pfSense because I cant reach the WebGUI or anything. Does anyone know how to go about doing this?
Jojje
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How do I configure dd-wrt to forward IP Protocol ID 50 & 51 traffic to an internal machine?

Please note, I'm not talking about TCP or UDP traffic. Rather IP traffic with the protocol ids of 50 and 51. The point of this being that I can then pass IPsec traffic thru to the internal machine where it would act as the VPN terminator.
jnman
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Best way to resolve locally-hosted server's IP addresses?

I'm planning to upgrade our office network architecture this week and have run into a slight issue. Right now we have a few servers that are accessible internally and externally, we'll call them server1 and server2. Externally, when I point to…
Matt McCormick
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Networking: Does slavedisk0 take over for disk0 in the event of a fault?

My bootvar is set to boot up images from disk0. The 6500 series switch has two redundant supervisors. Each supervisor has a PCMCIA card with the exact same IOS images in the 0 slot. The secondary supervisor is given the disk name slavedisk0 and…
user974896
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ubuntu set up as router lan pc can ping one direction and get shares but other direction can not ping or connect shares

I have ubuntu router questions. you can see tracert can complete on way but not other way. How to make that work? (a better visual layout exists here) http://ubuntuforums.org/showthread.php?p=12444760#post12444760 This way from second win7 works to…
Scott
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NAT Virtual Host setting in router not working

been working on this for past 1 week now, no break. So I have this local network with IP range 192.168.1.1 to 192.168.1.255 I have a apache server running on 192.168.1.90 on port 80 So I set up a NAT Virtual host in my router. Router setting Then I…
blas
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