Routers

46K

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.

Share tech news, updates, or what's on your mind.

Sign up to Post

Hello,

I'm trying to understand the basic route concept on cisco router.

ip route 0.0.0.0  0.0.0.0  10.10.10.1

If I do the above command, would all the traffic will  forward it to 10.10.10.1 ?
0
Building an interactive eFuture classroom
Building an interactive eFuture classroom

Watch and learn how ATEN provided a total control system solution including seamless switching matrix switch, HDBaseT extenders, PDU, lighting control to build an interactive eFuture classroom.

Hello,

All the trunk port needs  be connected using cross over cable or depends on the switch? IF MDI is enabled then don't need it ?
0
1.  Can we configure IP address on  Layer  2 switch port ?
 
2.  Do  we need to have Layer 3 switch to configure IP on switch port?  

3.  Default gateway needs to be on router or switch ?
0
Understanding Host Address Range

I have this
host :10.65.211.46
Subnet : 255.255.254.0
Counting from left to right there will be 23 bits for Network and the 9 bits left will be for hosts

there will be (2^9)-2= 510 hosts

What I do not understand is how to determine the Host Address Range:
The first host will be on 10.65.210.1 and the last host will be on 10.65.211.254

How do you come up with that ?

Thank you
0
Hello,

Can we configure IP address on cisco router 2900?
0
Hello Experts

We are in discussion with our ISP to connect the remote branch office with the HQ. We have decided to go with MPLS IP VPN.
Hence, I need know what configuration I need to on the Customer Edge ( HQ and Branch). ISP will provide there router equipment on the branch side.
What information should be provided to ISP ? What IP Subnets and VLANs I need to setup on our layer 3 switches


Please advise me because this is the first time to take this service
0
Greetings,

The goal is to run dual internet connections simultaneously using an  AT&T PPoE DSL (yes, PPoE DSL) connection and a Verizon 3G/4G Wireless USB Modem and designate specific office computers to use a specific internet connection.
A few of the computers run remote backup jobs that we want to connect to the un-metered AT&T connection.
A few of the computers need to utilize the faster Verizon 3G/4G connection.

Planned Equipment purchases:
One Sonicwall TZ 300
One Verizon UML290 3G/4G wireless USB modem

Questions:
1. Can I achieve our goal with the equipment and WAN connections above?
2. Is there a another method that may accomplish the above? Any suggestions welcomed!

The Sonicwall is the desired device due to the ability to implement Gateway Security Services.

Thank you,

COM1
0
Greetings,

My goal is to allow a 3rd party vendor access to our internet but not to our internal LAN Subnet by using the DMZ port on our Sonicwall TZ300  connected to  their hardware  router (Linksys EA6400).

1. Is this possible?
2. Is this the easiest method since we already have both hardware routers?
3. Will this truly separate our access to each others LAN networks?

Thank you in advance.

COM1
0
We purchased a new company, they have firewall, sonicwLl and t1 fiber. How to connect new company to our existing company so that we can share the resources?
1
Hi,

I have two routers, one with a WIFi network that the children connect to via DHCP and another with one that the adults connect to, also via DHCP.

I want to be able to limit the bandwidth of each of the children's devices so that while I'm working, they don't suck the network dry. Asking them is out of the question so I need to do this automatically.

Their router, a Dreytek 2820 is set to:

IP: 192.168.19.100
DHCP Start: 192.168.19.126
Pool Count: 24
Gateway IP: 192.168.19.1

Our router: Dreytek 2860
IP: 192.168.19.1
DHCP Start: 192.168.19.101
Pool Count: 24
Gateway IP: 192.168.19.1

The trouble I'm having is that they are picking up an IP from our router .101 onwards rather than the router they are connecting to via WIFI which should be .126 onwards.

I had assumed that if they connected to the router, it would dish out the IP's.

I've tried Binding an IP to a MAC on ours which sometimes works but isn't 100% as they often revert back to the DHCP IP and therefore bypass the limits.

Where have I gone wrong on the set up here?

Thanks for your help.
0
Want Experts Exchange at your fingertips?
LVL 9
Want Experts Exchange at your fingertips?

With Experts Exchange’s latest app release, you can now experience our most recent features, updates, and the same community interface while on-the-go. Download our latest app release at the Android or Apple stores today!

I am looking for a software VPN. Main goal is to give my users a way to create a RDP session with their own computer.

At the moment I use Greenbow VPN and a Draytek router which is configured for VPN.

It is a lot of work to setup and maintain. When a modem is Exchanged the VPN does not work anymore.

Think of it like Teamviewer: that passes all routers and sets up a connection. I want to be able to do that with Microsoft RDP in a safe manner.
0
I have a web site on my IIS server, which was accessible on the LAN.  I have two initial goals:  
1)  put the IIS server in a DMZ
2) configure the router so that the web site is accessible from the outside world

I moved the IIS server from the LAN port on my router to the DMZ port.  The router initially had firewall rules allowing access to the DMZ for all traffic from Any to Any.  I created a rule that denies access to the DMZ for all traffic from Any to Any, and then created a rule that allows access to the DMZ for HTTP requests from Any to Any.

I then created a port forwarding rule to forward HTTP/ port 80 to the internal IP address of the server.

I still can't access the web site externally.  And I can't access or ping the server from the LAN.
Ideas on what I need to change here?
Cisco RV325 router

access rules
port forwarding
0
Hi Experts

We had one of our 3750's hardware fail, will not power on. Were currently purchased a new 3750 to replace. Would like some general guidelines on the steps to do so. the most important we want the vlan information to come across.
Do we backup the config on an existing switch and apply it on the new one? - We tried and received a lot of errors
Do we apply the vlan and other port information (below is our existing) to match what we already have.
How do we place the switch back in the stack, unpowered and connect all the stacking cables and then power it on?
What Impact will that have on the stack, will it power down?
What will and will not come across after we add the switch to the stack, do we need to set a password on the new switch, I know after you add the switch the master takes over and it applies some information - firmware.

The switches in the stack has a lower SW Version than the new switch being added will it be downgraded automatically or something we have to do manually.  (sw version of the switches in stack 12.2(25) SEB4 \ New Switch 12.2(55)SB


interface FastEthernet1/0/12
 switchport access vlan 10
 switchport voice vlan 20
 srr-queue bandwidth share 10 10 60 20
 srr-queue bandwidth shape  10  0  0  0
 mls qos trust device cisco-phone
 mls qos trust cos
 auto qos voip cisco-phone
 spanning-tree portfast



Thanks Much
0
Hi Experts,

 I have this router setup and ports 3 and 4 give me only 100mbps and those two are the only ports flashing red but I have connectivity on the workstations. The workstations do have 1GB nics but I only see them at 100mbps. Is there anything I need to change on the router to make these two ports supports 1000MBPS?
0
Hello Experts - I am running an internal web based application called Deltek Vision on an instance of Server 2012 R2.  I would like to be able to make this available over the internet.  My firewall is a Fortigate 90D.  I took a peek at how the Exchange server was configured and tried to duplicate the logic for the Vision server since both are using http.  I created an Object for the Vision server using it's IP address, created two virtual IPs which is forwarding a spare public IP address on ports 80 (http) and 1433 (SQL), then duplicated the policy for Exchange to allow traffic to flow.  So far I'm getting no response which is where I'm stuck.  I'm not sure if I'm missing something on the routing side or if there is something else in IIS that needs to be done to allow access from the internet.

I'd appreciate any advice getting this working!
0
I have an edgerouter configured with one port that is a trunk for different vlans. I want one other port to be dedicated to one of the vlans that is already on the trunk. How do i do that?
0
Dear all, is there any mechanism to set a timer on Cisco Router and Switch?

For example: shutdown/restart an interfaces on pre-defined schedule, change the default route on schedule,...

Many thanks in advance.
0
Dear guys, I have this scenario:
- The original IP network which ISP provide: 13.14.24.160/28 (no worry, it's fake)
- I don't know why the IT guy who worked here before request ISP to split that network to 2 subnets: 13.14.24.160/29 and 13.14.24.168/29
- However, I was handover the instructions to get Internet for LAN network as the attached picture without any other explanation

Can anyone help me to answer these?
- Please explain the way end-users in LAN network to go the Internet. Which IP network should we configure in users' PCs?
- Please give me some ideas that clarify the purpose of the splitting?
- Can I place the pfSense firewall in the Router position? If so, is there any device/configuration we need to focus?

Many thanks as always!
Diagram.png
0
Dear zealots, I am configuring Routers and Switch to mitigate DDoS attacks, following this article: http://www.infosecwriters.com/Papers/HChau_Cisco-DoS-DDoS.pdf

However, when I enter "no ip directed-broadcast" into Router and Switch's interface mode, then it cannot be displayed when I hit "show run". Do you know why? My devices' version is 12.2 (Switch 3750/3560) and 15.1 (Router 3925)

And should I apply this command on VLAN interfaces in Switches?
1
On Demand Webinar - Networking for the Cloud Era
LVL 9
On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

I'm in the market for a new router.  I want a hardware DMZ.  I currently have a NetGear ProSafe FVS338, which is fine except for it lacks a hardware DMZ.
I do not need VPN support.
The other feature I'm interested in is ease of setup.  It doesn't need to be dummy-proof (i.e.  I don't want a "wizard" to do the setup for me).   I just don't want to deal with configuration like what's required for a SonicWall, with a completely un-intuitive UI and setup.
And no bells and whistles that require subscriptions / fees, por favor.

Please only post responses based on your personal experience.  I can Google for routers on my own time... looking for actual real-life recommendation here.
0
So if my understanding is correct from what I have managed to discover, the problem here is that any device connected to a cell phone hotspot, that has an active VPN, will simply route through the public ip connection on the hotspot and not go through the VPN.

Is there a way to 'route' through the VPN any device connected to the cell hotspot?  I have heard that possibly rooting the cell phone may allow this, but I have never rooted a phone before.

Or, is there another way to make this happen?  I am trying to create a secure VPN from our remote offices back to our main office using a cell phone...without having to step up to a LTE router.
1
Which traffic will use the next hop in the PBR? The DENY traffic or PERMIT traffic under the ACL? I am pretty sure it means the PERMIT traffic will use the PBR but just want to double check


ip access-list extended PBR
 deny   ip 10.90.28.224 0.0.0.15 any
 deny   ip 10.0.0.0 0.255.255.255 10.0.0.0 0.255.255.255
 permit ip 10.0.0.0 0.255.255.255 any


route-map PBR permit 10
 match ip address PBR
 set ip next-hop 10.255.14.1

Open in new window

0
Getting Msg:-
boot: cannot determine first executable file name on device "flash:"
0
Hi Folks:

     I am somewhat familiar with working with the Zyxel USG line of products, but have not done things like having multiple LAN segments, VLANS and setting bandwidth rules. I am setting up a ZyXEL USG40W for a client and need to accomplish the following:

Setup requirements:

1) Set up for Cable modem in bridged mode - This is DONE

2) Have separate LANs for computers and VOIP phones - Computers on LAN1 and VOIP phones on LAN2 (Have two separate unmanaged switches - (D-LINK) one for phones and one for the computers.

     -  I have done this by setting P2 to LAN 1 and P3 to LAN 2 under "Interface > Port Role" and then under "Interface >Ethernet" setting the IP Address for LAN2 to be 192.168.2.1 as opposed to 192.168.1.1 for LAN1. I assume this is the correct way to handle this issue. (Confirmation?)


3) Create bandwidth management rules to guarantee LAN2 a minimum amount of bandwidth over the WAN (in and out) - essentially anything on LAN2 is VOIP and needs QoS.

     - not sure how to accomplish this. Should it be done by setting the Egress and Ingress  bandwidths under the "Interface > Ethernet" settings for each of LAN (given that the VOIP phones and Computers are on separate unmanaged switches? Or do I still need to enable BWM and set rules?

4) Set up wireless so that devices connect on separate VLAN for purposes of possible bandwidth management - but possibly allow specific wireless users access to LAN1 for connection to the network server …
0
First, If I am correct:
Standard Access-list  can match traffic based on Source IP address only
Extended Access-list can match traffic based on Source/Destination IP address , port number, protocol, etc...

well, there is also  Named Access-list. We can have Standard Named Access-list and Extended Named Access-list
  Is Standard Named Access-list similar to Standard Access-list, it can match traffic based on Source IP address only ?
Is Extended Named Access-list  similar to Extended  Access-list ,it can match traffic based on Source/Destination IP address , port number, protocol, etc. ?

Thank you
0

Routers

46K

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.