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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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Routers vs. Switches

I know the difference between a router and a switch, but there are a few fuzzy spots in my understanding. When you uplink one switch into another, do they share mac address tables? Or is this a vendor specific function? If they don't share, how do…
Ryan Michela
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Restrict Computer or Users from Internet but allow access to intranet and Windows Update / ePO?

So this may be impossible but I've been asked to try and find something about it. So far nothing I have found is possible. I need to restrict specific machines or user accounts from regular Internet access but let them have access to the intranet…
MoSiAc
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IPv6 - How does my ISP know how to route traffic to my delegated subnet?

My question is somewhat related to this question: What ISP needs to provide in order to route native IPv6 /56 range to several VLANs Where that question focused on the private side of a router, my question focuses on the public side and is related…
ADS103
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Seamless transition from internet to local network

I'm setting up a NAS server for my company. From the outside it is accessible through mydomain.dyn.com, from the local network it can be accessed through its local IP address. The problem is that I can't connect to the server using domain name from…
CodeBreaker
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Can only some machines on a network have a public IP addresses?

Is it possible for some computers on a network to have their own public IP addresses and serve content over the internet while other computers on the same network only have private IP addresses but still have the ability to make requests over the…
Chris Dutrow
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Port forwarding in pfSense not working

I recently set up a pfSense router and can't get any port forwarding to work from outside my own LAN. I have the following forwarding rule to a local server located at 10.0.1.2: Note that if I enable NAT reflection for this rule, then ssh -p 993…
Conor Taylor
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OSS Router firmwares

DD-WRT, Open WRT , Tomato or Third-party firmware projects ? What are the compelling reasons to choose between these? I used to be a great DD-WRT fan until I realized that the author was deceiving users by publishing it as a OSS, but made it…
Cherian
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Clients unable to access certain websites, pages half loading, intermittent internet

All the PC's on my network are having trouble accessing a certain website (https://frontapp.com/) we need. The main page of the site will load partially, but the text and page will look strange. The 'sign in' page will not load at all, just give a…
user2757902
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Is enabling https on a Cisco router a considerable security risk?

I would like to use Cisco's Network Assistant to manage my Cisco routers (I know there are other solutions for this, but for now I've decided to use CNA). It requires the HTTP or HTTPS service to be running on routers being managed. Where I work I…
red888
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ADSL router happily accepts IPv6 packets of 2K in size

As I understand IPv6 fragmentation, the routers do not perform fragmentation, only the end-to-end nodes do. And when any router along the path receives a packet larger than the MTU of the link to its next hop, it'll discard it and reply to the…
Mansour
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Can I tail the log on a Cisco Router?

Can I tail the log on a Cisco Router? I have 'logging buffered 51200' and a debug running. I can see the packets with 'show log'. Can I tail this?
Kyle Brandt
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Best solution for Multi-WAN failover (inside & out)?

Looking for a way to setup 2 ISPs in failover mode, for both incoming & outgoing traffic, for our small (<100 devices) network. The leading contender for now seems to be the Peplink Balance 310. However, a reseller I spoke with said it's great for…
Sean O
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Two routers on different subnets - will this configuration work?

I'm hoping a network guru can help me out here. I have a network installation project at a client site and I've mentally mapped out how I plan to set it up. They already have a Verizon router set up and it must stay configured as the first…
tinghino
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Why can't I have the same subnet on WAN and LAN?

I want to know why same IP with same mask on both WAN and LAN side could be a problem. I also want to know if setting different mask, but having same IPs will resolve the routing problem. Specifically are same IP addresses with different masks…
alpav
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Wireless router country codes: what issues can these actually cause?

Running the network diagnostics tool on my Mac, I get a messaging about "Conflicting Country Codes" stating that: "A nearby wireless router has been detected which is identifying itself as originating from a country which conflicts with your…
Neil Coffey
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