Routers

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A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

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I have a wi-fi router in my home, and have been less than careful in allowing guests to login with my password.  Is there any way they can maliciously access my personal data through my wi-fi router?  Or through my modem (which has the same password)?

Thanks,

Phil
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I have a small business office from which the following network activity occurs:
1) I provide VPN access from the outside world into a server in my office
2) I have wired devices in my home/business network.
3) I have wireless devices in my home/business network.
4) I connect from my home/business network via a VPN to a remote network.

Relative to Item 1):  My ISP supplies a COMTREND modem for internet connectivity.  I have a Static Public IP for this device.  It has been placed in full bridged mode.  Behind it I have installed a new Linksys LRT214 VPN gigabit modem.  It has a PPPoE connection to the COMTREND device and has been configured correctly with the help of Linksys support personnel.  To provide access to the server via a VPN connection, this Linksys has an “OpenVPN” setup menu.  All pertinent info that allows connectivity is entered into the correct fields and a config file is automatically created.  This, too, has been accomplished with the help of Linksys personnel.  This config file is installed on the client pc’s that will reach the server I provide to them.  This has been tested and the client pc’s reach the server on my network with no problems.
The LRT214 is distributing addresses to all devices plugged in to it with the following addressing scheme:  192.168.3.xxx.  It’s own settings are as follows:
Static IP address:  192.168.3.1
Subnet Mask:        255.255.255.0
Gateway:                72.xx.xxx.xx   (Hidden for obvious reasons, but given to me …
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I am doing some discovery on a spoke of a DMVPN. I don't have access to the hub/hubs.
In the configuration seen below I have several ip nhrp map multicast statements and ip nhrp.
Is this indicating that this spoke has six different hubs to which it *could* register if the first one goes down? Thank you.

 ip nhrp map multicast 66.66.8.129
 ip nhrp map 10.77.126.1 66.66.8.129
 ip nhrp map multicast 66.66.8.130
 ip nhrp map 10.77.126.2 66.66.8.130
 ip nhrp map multicast 66.66.8.136
 ip nhrp map 10.77.126.3 66.66.8.136
 ip nhrp map multicast 66.66.8.138
 ip nhrp map 10.77.126.5 66.66.8.138
 ip nhrp map multicast 66.66.8.134
 ip nhrp map 10.77.126.7 66.66.8.134
 ip nhrp map multicast 66.66.8.131
 ip nhrp map 10.77.126.9 66.66.8.131
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This is driving me batty.   I just had my internet upgraded to 1GBPS.   All of my devices (with the exception of my gaming machine).   connection speed.Doing a speed test from my router to the internet I am getting 924mbps down and 30mbps up.  Which is correct.
I have a 6000$ gaming machine with a built in Intel gigabit ethernet adapter getting 1GBS connection and I can only get 130mbps down.
I thought maybe it was the card so I bypassed it and connected an ethernet to USB adapter ASIX AX88179 USB 3.0 to gigabit adapter same issue (yes its in the 3.0 slot)
I have had the modem in router and bridge mode made no difference.
I totally removed my linksys wireless router and connected directly to the back of the modem which is a Hitron no matter what port and still only get 130mbps down.  Verified in the modem itself it was getting a 1gbps connection as well.  
My phone is getting 300-400mbps on 5g why the heck cant my machine get more than 130mbps down?  On 2 different nic interfaces!!   Rebooted the modem, factoried the modem its in bridge mode on my router working just fine.   This is driving me crazy!
Also I have tried duplexing full mode and auto negotiate no difference!   Even my cell phone on 5G is getting 300-400mbps down.  I have tested this in several browsers as well including IE11 as well as totally disabling my NIC in the bios only using the external USB to Ethernet connection.   The router has the latest firmware as well. Both Ethernet cards have the …
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I have a remote site that is connected to our main site using a WAN between two Cisco routers. The Cisco GRE tunnel is up and stable.
At the remote site I have a mix of Windows 7 and Linux PCs on a single 192.168.37.x subnet with mask 255.255.255.0. The gateway is 192.168.37.10.

At my central site I have two RDS servers on a single subnet. The servers IPs are 192.168.39.246 and 192.168.39.222. with subnet mask 255.255.255.0. I use EIGRP and RIP across both subnets and the route tables in the routers are good. The gateway is 192.168.39.10.

At the remote site all of the Windows 7 PCs can remote access both servers using mstsc.exe.
At the remote site only some Linux PCs can access both servers using rdesktop/ping.

I have three out of five Linux PCs at the remote site that can only access the server with IP address 192.168.39.222. They cannot reach the server address 192.168.39.246 using rdesktop or even ping. The server firewalls are the same. The Linux installations are identical, having been cloned from the same image.  This was working until about a week ago.  Now these three machines can only see the one server. There are no ACLs on the Cisco routers that would cause this. There are no firewall settings on the Linux boxes that I can see.  I have numerous Linux PCs on the central site - all can see both servers. If I try reaching the remote PCs from the ~246 server, only the two that can reach it can be pinged or accessed using VNC. The Linux PCs that cannot see …
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hi,
got a dlink layer3 switch
got vlan1- management
got vlan2- voice
got vlan3- data
switch is doing the inter vlan routing.
and got default route  going to router ip

the part I want to know : - —— how do I connect the dlink switch to the router ???  the port in switch should I make it trunk ? In router what am I doing ?
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hi guys,

At the place I work at, we have a primary internet line and a secondary internet line. The secondary isn't being used as it is a failover. However, the primary line  with a Cisco 1941 has got its CPU usage to almost 90% every single day. The secondary line is not being utilised at all. That also has a Cisco 1941.

We have a change freeze window coming up for almost 2 months! So we can't do anything from this Friday onwards.

The future plans will be to upgrade WAN bandwidth and change the Cisco routers. But for now, if I wanted the secondary line to become utilised, would you use a Meraki Mx68 to do the load balancing? So that it would sit in front of the two routers and it would load balance the traffic to one or the other to turn it into an SD-WAN capable system?

Are there any other ways that you can think of?

Thanks for helping
Yash
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I'd like to pipe my router logs into Splunk which I will use for educational reasons.  I know how to ingest the data into Splunk properly, but would like to know where on my routers interface where I could redirect the logs so that AIO (all-in-one) can ingest them and index them into Splunk where I can read them.  So the questions isn't really about Splunk, it's only about where i can I found my router logs at once I've logged into it's interface?

I'm running a Sagemcom F@st 5260 WIFI router.
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We wish to monitor vpn dial in access, we are currently doing this using VPN Graph under diagnostics which is giving us what we need but unfortunately it only shows data for the past week or so. Is there a way to monitor long term vpn access. We have connected a usb stick to the draytek to record logs but this doesn't seem to record vpn access.
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Experts;
We are going to be getting 1000Base-LX from provider but customer is all cabled up w/ MMF wiring and MMD SFP on router, the device is at around 100Mts from the demarc. Can you please shine some light if this setup will work, the change is going to cost and was wondering if there is a real need for a change?

Thanks;
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Hi,

I've been working on an Edgerouter X for the past week trying to get a VPN client to connect to it.  I've tried everything I can think of but I cannot get either a Windows 10 client to connect and an iPhone VPN to connect.  I'm sure that I have something set incorrectly on my Edgerouter.  Just now I upgraded the firmware from 1.10.1 to 1.10.10.  I don't dare go to 2.0.6 as I've had a lot of problems with that firmware.  Here is what I programmed into my Edgerouter (I've removed the sensitive data):

set firewall name WAN_LOCAL rule 30 action accept
set firewall name WAN_LOCAL rule 30 description ike
set firewall name WAN_LOCAL rule 30 destination port 500
set firewall name WAN_LOCAL rule 30 log disable
set firewall name WAN_LOCAL rule 30 protocol udp

set firewall name WAN_LOCAL rule 40 action accept
set firewall name WAN_LOCAL rule 40 description esp
set firewall name WAN_LOCAL rule 40 log disable
set firewall name WAN_LOCAL rule 40 protocol esp

set firewall name WAN_LOCAL rule 50 action accept
set firewall name WAN_LOCAL rule 50 description nat-t
set firewall name WAN_LOCAL rule 50 destination port 4500
set firewall name WAN_LOCAL rule 50 log disable
set firewall name WAN_LOCAL rule 50 protocol udp

set firewall name WAN_LOCAL rule 60 action accept
set firewall name WAN_LOCAL rule 60 description l2tp
set firewall name WAN_LOCAL rule 60 destination port 1701
set firewall name WAN_LOCAL rule 60 ipsec match-ipsec
set firewall name WAN_LOCAL rule 60 log disable

Open in new window

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Client has a /16 and wants to advertise a /24 within the /16 via a new carrier at one of their smaller sites. Are there any things I need to discuss with the current carrier or the new carrier to make sure the new peering doesn't interfere with the existing route advertisements? Any other gotchas to consider in this operation? Thanks!
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Hi Anyone know why the command "transport output none" cannot work? That means i still can ssh from R1 to any other device based on the below config. Did I miss some command? Thank you!


R1
line vty 0 4
 login
 transport input telnet ssh
transport output none
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I have 2 routers that I need to feed into a single 16 port switch but only one router at any point in time.  I want to be able to choose which router is active on the Lan based off of an A/B switch.  One router is for normal day to day activity the other is used if the primary provider goes offline for any reason.

Does a device like this exist and if it does what is it called

Thanks
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Hello All,

I've been tasked with getting clock equipment working on our campus network. I need to have these touch screen stations in the same broadcast domain as the master server ....but the server reside under server block.

Server block access switches are connected to a distribution switch and DSW are connected to Core Switch over L3 links
Clock devices are connected to access switch trunked to Core switch
 
What's the best way to span a layer 2 broadcast domain over a layer 3 routed uplink??
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Hello experts,

I am having BGP rib failure after doing a bgp with a new ISP. Please see my config below

sh ip bgp summ
BGP router identifier 185.151.4.X, local AS number 202XXX
BGP table version is 12558, main routing table version 12558
11 network entries using 1584 bytes of memory
12 path entries using 960 bytes of memory
5/4 BGP path/bestpath attribute entries using 800 bytes of memory
4 BGP AS-PATH entries using 96 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 3440 total bytes of memory
BGP activity 28/17 prefixes, 33/21 paths, scan interval 60 secs

Neighbor        V           AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
87.201.148.XX   4        15802     317     356    12558    0    0 05:12:20        1
91.72.200.XXX   4        65120   48869   49332    12558    0    0 4w2d            7
151.253.77.XX   4   4275002636    3892    3054    12558    0    0 05:31:17        2


sh ip bgp
BGP table version is 12558, local router ID is 185.151.4.X
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
              x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

     Network          Next Hop            Metric LocPrf Weight Path
 *>  …
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I have a list of Routers, ASA's and Switches that include their names and IP addresses.

Instead of adding each one individually to Putty, is there a way to to a mass insert on one of its system files?

This will include approx 150 routers and Firewalls so using excel / csv would be ideal.

I have seen the information out there on updating a registry key, but it didnt seem to align with my needs.
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FileZilla-Server-Connection-Issues-.docxFileZilla Server SFTP connection issue from outside network. I need help resolving issues with sftp connection to filezilla server from outside network. Please see attachment for details for my current Router, FileZilla Server, and FileZilla Client configurations.
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Hello
It is better to have  two 24-port patch panels or one 48-port panel?.  We are making a single IDF closet for 4 floor building and all UTP cables will run to single closet. As per cabling contractor, the cables are under 90m length.
IDF is currently designed to have 12x24 patch panels and 7 access switches.
Also is it good idea to have single IDF closet ?

Any thoughts ?
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Budget: $200 or less

There will be about 20-30 wireless devices using the router habitually.  I also work from home some days.  I currently have an Apple Airport, but was looking to replace it after the 5 years I've had it.  Apple doesn't make them anymore (I heard that somewhere) so was curious what others recommend nowadays.  I've used Netgear, DLink and Linksys in the past.  I'm down for whatever really.  I'll probably be purchasing it on Amazon unless Newegg or something else has a better price that you know of?

Thank you so much.
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We have a motel with WRT54GL routers for wireless access running WDS.  The "hub" site router seems a bit flaky and is being rebooted fairly frequently - so it needs replacement.  Additionally, the owner wants to add another WDS spoke to cover a corner area with poor signal.

I figure there are a couple of options:

1) Buy a couple of old WRT54GL units to replace the hub and to add the spoke.  I've already tried a WRT54 v4 and it doesn't work with the others.  So, I suppose matching the models is pretty important.  Inexpensive to try....

2) Replace the existing 2 routers and add a 3rd with a newer router model.  I've done a bit of looking and I'm not much impressed by the lack of WDS information that I found.  I've had good luck with ASUS routers for WiFi but getting them to differentiate their routers re: WDS has proven to be difficult.

Any comments would be appreciated.  If #2, then which (newer) router would you bring into service?  These must have detachable antennas so we can connect to the existing antenna system.

(Yes, I know that Ethernet is best - but thanks for the thought!)
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I need modem/router for 4G mobile connection.  It must have ethernet or/and USB ports and accept AT commands for sending and receiving SMS
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I am visiting a client tomorrow (50 WAPs, 5 Switches) to assist them in their wireless dropout issues.
They have cordless wireless phones which were on 2ghz, they upgraded it 5ghz, it didnt resolve the issue.
They have meraki switches and waps, and cisco asa.
Meraki waps they are using are MR 42;
https://meraki.cisco.com/products/wireless/mr42 

I have worked on Meraki SWs and WAPs but never had any issues with them.
Should i start with disabling SSIDs and enable one by one?
Which tools / apps i can install on my computer to diagnose an issue like this?
Thanks.
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I am looking to develop an automation tool that can assist a NOC operation with WAN outage recovery without technician interaction. The automation tool will run in the lan environment (with no external access) and interact directly with the WAN interface. Please note this tool will not interact with any third party devices outside of the WAN environment. The test environment has Cisco Routers/Switches and uses Spectrum Monitoring.  Looking for suggestions on use cases and example event flow to develop on.
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Hi Expert,

Need advise on how to configure mobile device to connect exchange LAB environment using my home router?

Currently i have setup the exchange lab, i'm able to access my exchange OWA using my mobile data through browser, but how can i test the mobile active sync?

I tried to export self signed cert from my exchange server and installed the cert into my iphone, but still couldn't receive email through outlook mobile apps.

Is it possible to be configure/test?

Thanks.
0

Routers

48K

Solutions

30K

Contributors

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.