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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Hi Experts,

This week I got a Panasonic ToughBook CF-33 and switched my ISP from Bell to Rogers.

Over Ethernet, using speed-test.net, download with Bell was 300Mbps, with Rogers is 500Mbps.

Over WiFi, the ToughBoook was 80Mbps and now <20Mbps.  On my iPhone, Rogers is getting 300Mbps.

Why is my ToughBook now  under 20Mbps?

One thing that I noticed now is that with Rogers my router is now Hitron CODA-4582U, and the SSID for 2.4GHz and 5GHz can't be the same, where on  Bell (Cisco) they were. The ToughBook now cannot detect the 5GHz SSID. Does the ToughBook CF-33 not support 5GHz?

To make matters even more interesting, my printer only has WiFi interface, which makes it on a different network because of the mismatched SSIDs

As I am typing this I am wondering should I purchase another Cisco router and make the Hitron only as modem?

Any help will be appreciated.
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6 Comments
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We have a legacy XP machine  that has custom software that  it uses for data collection of devices. The software upgrade is out of budget so we decided to put a firewall in the mix.

If we have 1 ASA and need to retain the IP address of the legacy XP machine with ports 400, 900, and 950 what would that config look like?
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Hi We need to add a few of APs(3500) to WLC.(5508). I wonder if we need to configure channel number manually in order to avoid Co-Channel Interference? or we just add these APs and then APs can automatically be assigned some best channel ? Thank  you
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7 Comments
I have a computer with two nic's installed.
N1 192.168.0.x 255.255.255.0 ; N2 172.18.135.x 255.255.255.0
I would like to route all outlook email traffic from N1 to N2
I have tried a lot of combination of the following "route" command
all with an invalid parameter error message. I'm using the CMD with
elevated admin.  any help would be appreciated.

ROUTE ADD 192.168.0.11 MASK 255.255.255.0 172.18.135.48 yields invalid param error
ROUTE ADD 192.168.0.11 255.255.255.0 172.18.135.48 yields invalid param error
ROUTE ADD 192.168.0.11 MASK 255.255.255.0 GATEWAY 127.0.0.1 172.18.135.48 yields invalid param error
ROUTE ADD 192.168.0.11 MASK 255.255.255.0 127.0.0.1 172.18.135.48 yields invalid param error
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4 Comments
Have Cisco 1900 serial router a HA function ?
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3 Comments
I have created new 26 vlan in cisco switch. But when i checked spanning tree instance for those vlan i see spanning tree instance only for 4 vlan for rest of vlan i did not see any instance.

Below is the message#

INND-S-D-01-AUS#sh spanning-tree vlan 626

Spanning tree instance(s) for vlan 626 does not exist.
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Dear Experts, we are moving our Data Center in the next 2 months. What should we consider and take note in order to move DC smoothly?

Our environment:
- 4 x Server ESXi6.5 (HP Gen9)
- 2 x Routers Cisco 3925
- 2 x Core Switch Cisco 3750/3560
- 1 x Firewall Sophos XG
- 10 x Access Switch Cisco CE500
- 5 x WAP Cisco Meraki MR18
- 5 x Physical Server IBM x3650

Many thanks!
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8 Comments
Peplink Balance One router/ap unit reporting latency issues with wired/hard wired network devices.  need to perform direct to the cable modem first but I like to have access and documentation later for if and when I have to troubleshoot this unit.   The site seems to be lacking a manual nor is as easy as reaching the gateway IP to access the GUI.

Anyone familiar with access to this unit?  Does anyone spot the manual?  I sent a troubleshooting ticket a month ago to Peplink and they have yet to respond.  They don't even have one phone number on their site anywhere.
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6 Comments
I have RV016 routers and the VPN on one of them is going bad.  I am looking at the RV345. I have several questions that no one can answer to my surprise.
Is the VPN compatible between the routers?
What PC client software should I use?  I have PC and MAC clients.

Thanks
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14 Comments
I'm trying to setup another SSID on a Cisco 2504 WLC. I've mirrored (I believe) the settings of an already existing SSID/network with the difference of subnet, etc. The traffic is routed through a Cisco 2811 and various switches. The switch that identifies the VLANs, has also been configured accordingly. Could be problems in multiple places since I've done this a number of times, but never came across this issue.

To start, I can't ping the interface IP of that newly created SSID from any device, including the switch that the controller is connected to.



This is the config of the switch that the controller is connected to where the other networks work:

2018-07-13_12-20-31.png
I figure if I can get to the interface IP (as usual), I'll be able to get to my DHCP server, get an address, and get to the internet.

Any assistance is greatly appreciated.
2018-07-13_12-16-47.png
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23 Comments
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Hey! I have a router problem. On last saturday, i got the new 1000mbit/s internet in my house. My ISP(called Digi, in Hungary .) Gave me a Huawei(Huawei EchoLife HG8242-B,) modem/router(?). I bought on monday a new TP link AC1200. BUt i was experiencing internet drop issues. (it lost connection after 30mins, and keeps doing that in that interval.) So I called my ISP, they came to my house on wednesday, and told that, the problem is in my router. So i took it back to the shop, and bought a new TP link AC1750 V4.0 on Thursday. But the problem still appear, and I've tried everything. Dhcp change, MTU size change, frimware upgrade/downgrade, DNS change but it still drops the connection on WIRED. The problem appears on every WIRED computer, at the same time. Before first my ISP came to my house, the Huawei was in Dinamic IP mode, but my ISP changed that to bridge mode, so now the connection is now, a PPOPE one. Problem still appears, every time, and ISP keep saying, there is no fault at their end. But it'S possible to get 2 wrong router? My ISP will come today too.  SO what should i change  to finally forget this problem?
The strange  thing is , from an old TP link 941N router, everything works fine.
Now, what could be the issue?
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I work for a school district and have three buildings each with roughly 300 computers.  We have two buildings in one network (ip scope) and the third in its own network.  We are thinking about closing the one school building and moving the 300 computers and users to the other campus of two building.  I am concerned about having so many devices on one broadcast domain.  Would one network with 1,000 devices be a bad idea in terms of traffic?
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4 Comments
Hell,
I have a mikrotik with pcc load balancing  for 2 wans...
I have some users that is but an access points after the mikrotik and they share internet to others
on the main of mangle I add two rule to block that :
 action forward - change ttl - decrement = 1  
 action prerouting - change ttl - decrement = 1
after I did that on the top on mangle rule the internet sharing issue was resolved  but the problem is with the load balancing rules and the others going to not work or effect !
so what I have to do ?
thanks.
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1 Comment
If you have the SNMP v3 r/w password - can you create an enable level user account or modify the password of an existing user account
on a Cisco ISR router? I have a device that I realized is not authenticating with radius and the local admin password is lost. But I see
that snmp v3 is working correctly.
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3 Comments
Hello,

I would like to know what security measures can be implemented at the ISP level for IPVPN Link ?

Is it compulsory to have Firewall at edge level for VPN Links?

Br
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3 Comments
Reset and Reload in Cisco Routers

I have seen Network Admins use the commands Reset (very rare) and Reload to reboot the router.
Are those commands dependent on the version of the IOS ?

Thank you
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6 Comments
Set up CCIE LAB on GNS 3

Setting up CCIE LAB  in GNS3 is possible for routers but not switches.
I would like to know if I can use Physical Switches and connect them to the Laptop where GNS3 is running and get the Lab Setup ?
if so , What are the components needed to get this Lab Setup ?

Thank you
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4 Comments
Sonic Wall 5600 XO is setup using 100mps, if I change the configuration to 1GPS, will this improve the network speed and can I do it when someone is using the router?

I also have 10 other interface that are not configured, I would like to dedicate each switch to it own interface, suggestions or comments please?
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2 Comments
Just upgraded a client from XFINITY internet to Hargray fiber.  The password to the sonicwall got lost so we reset the sonicwall to factory and set it back up with the new PPPOE settings for Hargray.  Everything seemed to be working fine until hours later when employees started having issues with a few certain websites.

Cannot reach some websites.  The main ones I have found are AOL.com, the local Tax Assessor website, and XFINITY email.

AOL.com and the Tax Assessor site gives : This site can't be reached ERR_TIMED OUT

XFINITY Email gives :  This site can't provide a secure connection    ERR_SSL_VERSION_OR_CIPHER_MISMATCH

Another issue I noticed after looking at their issues is that I can't get the sonicwall to register.  When I click Update your registration button, it will not connect.  It also says in the Status at the bottom:  Dynamic Update Connection Failure Detected.  Please refresh to re-activate dynamic updates.

Mysonicwall.com shows the device as offline.  It's like it can't connect back to the site.
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7 Comments
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How to configure the business hub router 6 so traffic coming from internet talks to port tcp 443 and udp 161.
I need to port forwarding all inbound  traffic on port tcp 443 and udp 161 so my webserver can access from internet .

Also web server needs all outbound traffic.

Also wi-fi seems works ok for internal users.

is this possible ?
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1 Comment
Hi,

I'm having issues factory resetting a Cisco Air Lap1042N-E-K9 Access point, I have tried all variations of resetting this from the mode button and write default-config have also tried deleting private-multiple-fs but I just comes back again after a reboot I can't seem to do a full reset no matter what I try.
Initially I could not access conf t but I managed to find a command line that allows this but even if I wri mem and issue a reload command this option is not saved, it appears to disregard anything I add after a reboot I'm completely lost :(
I'm not fully conversant in cli/console mode but I can just about get by if someone points me in the right direction as to what I'm doing wrong.
if you need me to upload the config then please let me know.

Thanks
Craig
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1 Comment
Hi,
I am trying to implement the static nat  on cisco router for inbound traffic.

Can anyone explain what is the exact different below two nat rules.
1. ip nat inside source static 10.216.128.14 81.128.XXX.XXX    (When I applied this nat all works ok no inbound and outbound traffic are blocks).

2.
ip nat inside source static udp 10.216.128.14 161 81.128.XXX. XXX 161

ip nat inside source static tcp 10.216.128.14 443 81.128.XXX.XXX 443

I reckon nat rule has allowed me 443 and 161 to be opened only ?

Regards
Nasim
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3 Comments
Hey, we have been having a strange problem with our Quickbooks POS ver 13 multi user installation in a club setup (4 machines). Customers have to recharge their accounts before ordering and the big problem we have is discrepancies between current and available balances. However,the sale transactions are posted in real time but the balances take seem time to synchronize(happens  to a random member account irregularly ) and we have changed the LAN routers and cabling and the problem is still persisting. The charge to account is posted after some delays of a few hours. We have integrated the solution to Quickbooks premier for financial exchange. Our company file is 500MB big and the connectivity tool doesn't post any errors. The environment is available for remote access any time. Any pointers?
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4 Comments
If you have two Internet feeds with BGP attracting traffic to your site and one goes out - should that interfere with ongoing uploads?
Say I had 200 uploads via sftp to my site. Provider A does some maintenance but Provider B stays up. Traffic load drops to 50
uploads. Since the connections are TCP/SFTP I would think they would just pause and then continue once the available path became
available. Or is it the case that the reconvergence/hold down timers are likely just too long to keep most of those conversations
alive?
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3 Comments
Hi,

i have a Domaincontroller on the network 10.1.1.x
on my home network i have the range 192.168.0.x

i have a vpn tunnel over my routers so that i can see both lan's.

how can i install a second domaincontroller on the network 192.168.0.x and let that sync with the first one.

the reason is that i want to add my home computer tot the same domain then on the office.
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9 Comments

Routers

47K

Solutions

36

Content

i
The collection of articles, videos, and posts on this topic.

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.

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