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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Viptela in network have a lot router's function and also is used as edge router connected to ISP. It looks like Viptela has very similar function with regular router. And router such as ASR1K is used as edge router connected to ISP and it also has same function as Viptela. I wonder due to what function of Viptela we use Viptela instead of ASR1K? Thank you
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I discussed about Velocloud SDWAN w/ Aaron Tomosky in past and he provided a great deal of insights. This time my question is very brief:

Can VEP 4600 Device for Velocloud SWDAN accept a fiber handoff, our internet provider can only provide optical handoff.

Thanks;
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Hi,

I have a client who needs a fast router/firewall as they will be hosting an App from their office.

This is a start up so money is tight, ensuring I put in a business grade router/firewall what is my best option for speed and security.

Thanks
Gareth
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Access-List a L2 Switch

I would like to know if we can apply ACL on L2 Cisco switch  based host IP address as well as on Host IP address + Port number.
An Example will be more helpful

Thank you
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Hello, I am working on a Linksys EA6300 router when I connect to it using the 5G wifi connection the highest speed I can get is 25mb and the 2.4Ghz around 10mb but if I use the Xfinity Model: TG1682G router wifi connection 5Ghz I get around 250Mps down and the 2.4Ghz is getting about 20mb down. The customer has been using two router on separate networks just to extend the coverage but this is becoming a problem due to the speed of the Linksys ea6300. My question the Linksys has 10/100/1000 connections so I was thinking the connections should be a bit faster than this? Any suggestions? I know this is a poor man's way to have it set up but it has been working for them over the past few years
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Our customer is connected to internet via a static route to ISP, now they want to advertise a subnet to internet, is it possible to do that, please help.
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I just recently installed an Edgerouter 4. It was working for a week and now, I cannot get any device to connect to the Internet that's connected to the Edgerouter. I used the Basic Setup Wizard. I've updated the firmware to 2.0.6. I've plugged only the PC into Eth2 and also tried Eth3 and Eth4. The computer gets the IPV4 that the router gave it. I can connect to the router. I see that the router is getting a WAN IP on eth0. I see Tx and Rx on that interface. Right now it's at 10.4 Kbps Tx and 6.25 Kbps Rx. It shows connected but it doesn't matter what device I connect up to it--they cannot access the Internet. I've reset the Edgerouter 4 a few times and tried a few different configs in the wizard but everything doesn't get the devices on the Net. I can connect any device directly up to the CABLE modem and get an external IP similar to the WAN IP on eth0 and those devices can browse the Internet. Can you please suggest any other troubleshooting ideas? From the device, I can ping the WAN IP and get 1ms responses. If I try to use the Ping tool, it doesn't have any responses. It just says 0 packets sent and 0 received. Thanks in advance for your help!
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Hi.  I have a question about some firewall settings on our router that don't quite make sense to me.

I'm no expert when it comes to router configs, but I can make sense of all of the entries but two.
2019-08-16-13_42_39-FortiGate---TG3_.png
#10 seems to allow any interface from any source through to the lan.
2019-08-16-13_48_17-FortiGate---TG3_.png
#12 then seems to disallow any interface from any source through to the lan.
2019-08-16-13_48_43-FortiGate---TG3_.png
Is this common/best practice...if so can you explain the logic behind this?  The previous entries are there to allow traffic through on specific ports, then the next entry seems to just open the flood gates...has me confused.  Thanks!!
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Hi,

I have a Synology router MR2200ac  which doesn't reach some places in the house (upstairs).
Don't have an UTP cable up there, otherwise I could buy an extra MR2200ac. How do I extend the network, WITHOUT needing to login again to another access point? The mobile phone should just switch over to strongest nework.

Please advise.
J.
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I would like to use Mikrotik RB3011 router with Ruckus R510 Ap.
I don't know if this is possible? If yes please advice or event better provide any link with info /tutorial ...
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Hello, I am aware that classful network addressing is a thing of the past and there are 5 classes.
            Prefix
Class A       0
Class B       10
Class C       110
Class D       1110
Class E       1111

If we wanted 9 Classes I’m trying to find the leading bits. Is this possible?

Thanks.
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Hi I have a Asus RT-AC3200, or a few of them, I wanted to setup that IMesh from Asus on it, but it looks like it is omited.  

Question, is there a work around to get IMesh on the Asus RT-AC3200?

Thanks all, if not I don't mind, just wanted to know.
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need to block port 500 and port 443 on linksys e900 router and sonic wall soho.  cant seem to figure out how on either one.  any ideas?  thanks  :-)
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Issue with Cisco kit with a customer where their main  LAN connected devices on default VLAN1 can access Guestwifi on a separate VLAN

Whats best way to troubleshoot and rectify this?

Is it just a case of using access lists to deny ip ranges?

Whats best practice way to plan and implement it?
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Dear Experts, we are testing the new switch Cisco SG350 but could not know how to change the default native VLAN of it?

Can anyone suggest? Many thanks!
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I have a Linksys ac1200 hooked up currently to my modem router combo from my isp.

I getting a new ac2200 Linksys today . how do I hook that up to my ac1200 to expand my network .
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Hello,

We're considering moving to a co-working space and I had a conversation about network security with the person that manages the network.

We were discussing different options and he made a statement that seemed odd to me.  I had asked about MAC spoofing as a potential way to circumvent a solution he had proposed (can't remember exactly what it was but I don't think it matters).  His response was something like "...no, our routers are able to detect MAC spoofing."  They are using a Meraki MX-84.

When I asked him how the router was able to detect MAC spoofing, he wasn't able to answer.  I know that doesn't mean the router isn't capable of it, but it piqued my interest enough to post here and see what you all had to say.

Is this something that the router is able to detect?  If so, what is the mechanism it uses to identify it (i.e., how the heck does it know)? :D  

Thanks in advance for any help.
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BGP Route Reflector

I have the topology below:
r
all routers are n the same AS1, I had to configure Route-Reflector on R2  to get R1 able to ping R3 loopback interface and the other way around
in another LAB I have configured R3 in AS2  while R1 and R2 left in AS1 , in that Lab I did not have to configure Route-Reflector in R2 and was able to reach Loopbacks of R1 and R3 from R1 and R3

Any explanation about that ?

Thank you
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EBGP Configuration

In the topology below:
b
The configuration on R1,R2,R3

What I would like to know Why R1 BGP table can see R3 loopback 3.3.3.3 though it is not reachable, the same for R3 that can see R1  loopback 1.1.1.1 but it is not reachable.
I know  using  an IGP such as EIGRP or OSPF or RIP will resolve the issue..but in my thoughts if a route shows in a routing table means it is reachable


R1#sh run | sec bgp
router bgp 1
 bgp log-neighbor-changes
 network 1.1.1.1 mask 255.255.255.255
 neighbor 192.168.12.2 remote-as 1
R1#

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R2#sh run | sec bgp
router bgp 1
 bgp log-neighbor-changes
 network 2.2.2.2 mask 255.255.255.255
 neighbor 192.168.12.1 remote-as 1
 neighbor 192.168.12.1 next-hop-self
 neighbor 192.168.23.3 remote-as 2
 neighbor 192.168.23.3 next-hop-self
R2#

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R3#sh run | sec bgp
router bgp 2
 bgp log-neighbor-changes
 network 3.3.3.3 mask 255.255.255.255
 neighbor 192.168.23.2 remote-as 1
R3#

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R3#sh ip route bgp

      1.0.0.0/32 is subnetted, 1 subnets
B        1.1.1.1 [20/0] via 192.168.23.2, 00:14:54
      2.0.0.0/32 is subnetted, 1 subnets
B        2.2.2.2 [20/0] via 192.168.23.2, 00:14:54
R3#

Open in new window



R1#sh ip route bgp


      2.0.0.0/32 is subnetted, 1 subnets
B        2.2.2.2 [200/0] via 192.168.12.2, 00:20:26
      3.0.0.0/32 is subnetted, 1 subnets
B        3.3.3.3 [200/0] via 192.168.12.2, 00:13:03
R1#

Open in new window

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The user would like all web traffic from all devices to go through what I'll call a privacy VPN connection.  They have a SonicWall Security Device as a router.  
I have set up VPN connections on the SonicWall
I have also set up Routing Policies

Is there a privacy VPN service that they could connect to?  

As I see it, a single connection from the SonicWall Router, along with a Routing Policy, would take care of providing privacy for all computers and devices.

Thanks.
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Dear Experts
We have data center in head office where the web based applications are hosted and now we are setting up branch office at remote location but wired MPLS connection is not feasible at branch office hence the only option we have is to go for RF (antenna with line of sight) MPLS network, to establish the connection between head office and branch office site location. The topology I am planning is hub and spoke connectivity between two locations and managed mpls network.
I am planning for link redundancy with one more MPLS setup from a different ISP however they too offer with RF and same hub and spoke connection between head office and remote branch office spoke location, please suggest is this best network design as the up-time between 2 locations connectivity is critical for us.
1.Please suggest is the above network is good to go or please recommend best practice.
2.If we have to go with 2 ISP’s MPLS vpn connectivity, then what type of gateway device we have to procure to achieve automatic link fail over/link redundancy i,e if any one link goes down automatically other link should serve us to continue our work, please suggest the network design and the gateway device that we have to procure. Thanks in advance.
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I have two Zyxel 1100 routers and about two months ago, I set up a site to site IPSecVPN between two sites.  It set up quickly and worked perfectly.

Today, I logged in to bring a third site online, but I noticed that the VPN between site 1 and site 3 is down.  I disconnected, deactivated and then reactivated and reconnected, but still I can't ping from site 1 to site 2.  It's strange...the VPN shows up and connected, but I can't ping between the two sites.

Short of breaking the VPN and rebuilding it, which I have not tried to do yet, is there something else someone can suggest for getting this reconnected?

Thanks
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Here's a rather basic question for you experts I've never been sure I totally understand. I recently installed a new controller for my sprinkler system which also comes with it's own app.
The controller is in the garage. My Netgear R9000 router is on the opposite side of the house. Also, the controller only accepts 2.4G.

I purchased an extender to boost the signal to the garage which puts out both 2.4G and 5G. My iPhone is set to 5G from my router.

Can I connect the controller to the extender at 2.4G while my iPhone is connected to the router at 5G or do I have to connect my iPhone to the extender at 2,4 too?
1
We have a yealink IP SIP phone that needs to connect from the outside.  We have set up the phone and tested it internally and it's good so we moved it externally.  

In the phone, we edited the account and put in the public IP of our router (a Sonicwall NSA4600) and waited for the phone to register.  It fails to register.

I've checked the ports and I DO have the right ports open on the Sonicwall but I've also read a lot of posts about people having trouble with SW and SIP phones.  So, after reading, I have made the changes suggested on the posts I've read and still no joy.  

I'm using https://www.yougetsignal.com/ to test 5060 and it reports that it's closed.

Does anyone have any insight into how to make the SW work well with the SIP phone?

PS:  An alternate port scanning tool tells me the port is filtered.  So, I'm looking up how to turn filtering off in the sonicwall for this service.

Thanks
0

Routers

47K

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.