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, My concern is that Can i use SRX series Firewall as a Router
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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?
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Dear guys, I could not configure Frame Relay Cloud when testing in Packet Tracer ver 7.0.0.0202

Did try with version 1941, 2811 Router but did not help. Seem likes I don't have the Add button in the attached picture. Can anyone suggest ideas?


Many thanks!
FR.PNG
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We have HP ProCurve 2910al Ethernet switches.  They currently are running flash version W.15.14.0012.

I am preparing to update the firmware to W.15.14.0015; but, I would like to be able to connect to the device locally before I update the firmware.    This is not a requirement; but, it is common sense.  For now, I use a weird work - around.

The work around is a restart of the laptop and then  I can get properly connected back into the switch.  Now after I can get connected and can type different commands and exit out of that serial (putty) session.  If I attempt to logon again, that is where it freezes up on me.

I have realized on occasion(s) the serial connection is not functional during the 1st attempt, then a restart fixes that problem temporarily.  I want to say that a registry key needs to be cleared and it is not getting cleared.  Any ideas?

Here are the Serial Connection settings:

screen1
Here are the settings on the switches:

screen2
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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!
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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?
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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.
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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
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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?
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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.
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Connect further...control easier
Connect further...control easier

With the ATEN CE624, you can now enjoy a high-quality visual experience powered by HDBaseT technology and the convenience of a single Cat6 cable to transmit uncompressed video with zero latency and multi-streaming for dual-view applications where remote access is required.

I have a Asus RT-N18U router. (but can buy another one), with DD-WRT firmware DD-WRT v3.0-r32170 std (06/01/17)
I want:
Hotspot for Restaurants that:
-People connect (no password) to WIFI
-they get a webpage (can be on router or in internet)
-webpage ask for emailadress
-once introduced emailadress and send it (to a server in internet with its MAC address) they get granted lets say 2 hours of internet
-after 2 hours they have to come back to the login page again (or better they get blocked for 10 hours with error webpage and after to login page again)
-no other service (not free and not payed) should be used

-the router mentioned offers dd-wrt with onboard radiusserver (I tried it and works), chillispot or nocatsplash (both I didn't get to work)
The router should be configured (WAN) as DHCP automatic conection and he should use his own network with his own DHCP server (so it is easy to connect him to an existing network)

I need somebody who configures the router and tell me how the configuration works. (where are modifyable files)
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I have two locations with almost duplicate setups.  
Location 1:  On a network run by a PDC.  The ISP is a cable company.   The one office in this location has 3 computers all connected to the network via a Netgear 5 port switch.  But also connected to this switch is a DSL connection via a dsl modem line to a preset location..  When the users need to connect to this dsl line they just click on the shortcut created on their desktop that directs them to the preset IP address.   All other communication for everything else goes through the regular PDC/cable network.  Using DHCP and automatically sees PDC as DNS provider.  Works great.

Location 2;  On a network but run just by a router, not a PDC,  through the local Cable company.  Two computers connected via an identical 5 port Netgear switch as in the location 1.  They have the the exact same dsl line via the same dsl modem connecting to the same IP address as in location 1.  The problem is that you can only connect to one or the other in location 2.  If you want to connect to the dsl location via the dsl modem, you have to disconnect the cable from the router from cable company at the Netgear switch.   Or if you want to  use cable you need to disconnect dsl modem from switch.  Also running DHCP and DNS being provided by either the DSL or cable depending on which you are using.  

What would cause one to work and the almost identical one won't?
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Need to refresh DHCP IP address reassign Needed to command
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My networking skills are limited and I am presented with a problem.  I need to get a 10. subnet to talk to a 192. subnet.  What do I need to do/configure, and is it possible?
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Hello Everybody ,
 
 need you support RnS Expert Engineer

my scenario , the requirement are the router automatically move the the traffic flow based  link delay by using PFR with active/ active  by using Active/ Active ISP link utilization .

 here  are requirement and configuration    

LAN subnet :-
 188.117.100.172/29
 188.117.124.36 /29
my goals  to measure the traffic over all the available ISP
the  primary path of the first subent  is  ISP 0A, primary path of the 2nd subnet is ISP02
if the any ISP link experiencing any delay the  inbound and outbound shift the traffic automatically .

MY BGP configuration  
ip bgp-community new-format

outer bgp 7770
 bgp log-neighbor-changes
 timers bgp 10 30
 neighbor 172.21.8.169 remote-as 41176
 neighbor 172.21.8.177 remote-as 41176
 !
 address-family ipv4
 
  network 188.117.100.172 mask 255.255.255.252
  network 188.117.124.36 mask 255.255.255.252
 
  neighbor 172.21.8.169 activate
  neighbor 172.21.8.169 send-community both
  neighbor 172.21.8.177 activate
  neighbor 172.21.8.177 send-community both

ISP's BGP Configuration

neighbor 172.21.8.170 send-community both
  neighbor 172.21.8.170 default-originate
  neighbor 172.21.8.170 soft-reconfiguration inbound
  neighbor 172.21.8.170 prefix-list  PFR out
  neighbor 172.21.8.170 route-map BGP_COMM in
  neighbor 172.21.8.178 activate
  neighbor 172.21.8.178 send-community both
  neighbor 172.21.8.178 default-originate
  …
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I have cisco 3650 and 3560G connected one to one port as trunk. Ports are gig1/1/1 to g0/1

What is the recommended etherchannel configuration from port gig1/1/1, gig 1/1/2 to g0/1, g0/2?
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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 …
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I am remodeling four homes.  I have  installed eight port structured wiring systems in all four.  Each wall jack (room) includes one ethernet jack, one cable jack, and one phone jack.  Everything is homerun to the utility room in the basement. Within the wiring cabinet located there, are punch down blocks and patch panels for all wires and cables. I would like to install  in each cabinet, an eight port router or switch to include an integrated DHCP server, and POE  jacks. One of these Jack's will be wired to a ceiling mounted Wi-Fi access point on the third floor in the center of the home. This device should be dual band AC 1200  or greater. Ultimately, the router or switch will be plugged into a cable modem providing Internet and telephone service. I am having trouble finding the router or switch, which needs to be small enough  to fit inside the wiring panel.  I also need an inexpensive access point device.  The cable modem will be mounted by the cable service provider outside the panel.  This arrangement will allow plug-and-play of any wired or wireless device in the home without the need for a PC  based DHCP server arrangement. Has anyone done this? Any recommendations? I need to keep this reasonably inexpensive.
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I have a watchguard M400 (Fireware XTM 11.10) Firewall/Router with about 14 Branch Office VPN'c coming into it. We have a new software these BOVPN's need to access. There are two application servers running the software. I would like to load balance the connections to these servers. Can someone point me in the correct direction?
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Manage your data center from practically anywhere
Manage your data center from practically anywhere

The KN8164V features HD resolution of 1920 x 1200, FIPS 140-2 with level 1 security standards and virtual media transmissions at twice the speed. Built for reliability, the KN series provides local console and remote over IP access, ensuring 24/7 availability to all servers.

How to find the 1 and 2 and 15 th subnetworks of  the address 192.168.1.0?
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I need traffic from VLANS 3 and 4 to get to 5.5.5.5 via 2.2.2.2 and traffic from VLANS 1 and 5 to get to 5.5.5.5 via 7.7.7.2, using, I assume, policy based routing.
We’re using HP Procurve 56xx's for the routers.
 I've tried using the PBR already, but I believe because the final step is to assign the Policy based route to a vlan, it's not working because the VLAN's aren't on the same router.
Any help would be appreciated!PBR Map
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Hi All,
We currently manage and maintain a SMB that consists of;

Main Site
---------------
-2x ADSL2+ Connections totaling approx 32Mbps download and 1.6Mbps Upload running through a client side network load balancer.
-Ethernet Smart Switches. No VLan. No Jumbo.
-HP ML350P Hyper-V consisting of 4 VMs. Domain Controller, Exchange, Files, RDS.
-Backup Physical DC server
-Currently we have rules in place to minimize the use of the primary ADSL connection from staff at the main site to keep the bandwidth available to staff who remote in via SSL gateway RDP.

3x Remote Sites
------------------------
-Each site has its own ADSL2+ connection with varying bandwidth from 16Mbps download and 0.8 Mbps Upload.
-Users connect remotely using SSL gateway RDP access.


Current Issues
----------------------
-Remote user experience is poor and impacted by staff internet use.
-Remote user experience can be impacted by users at the main site and remote sites internet access habits. Example. If a user downloads via web browser on the RDS this effects the available bandwidth for RDS remote connections. We have rules in place to prevent this but as per all router bandwidth rules these are best effort and only in place when 80% load is placed on the connection.


Suggested Changes
------------------------------
-Add a 10/10Mbps connection to the main site. (Only recently become available)
-Add a further ADSL2+ connection to any remote sites with more than 5 staff. This …
2
hi experts,

 user's can't get to this website www.spotify.com. i already checked firewall and web filter and it's not blocked there. I ran out of ideas
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Hello there!

I hope some of you are using Mikrotik routers and will know what I am talking about :)

I have scenario:
- Main gateway is Huawei LTE modem 315s. It has its own WiFi option, LAN ports and firewall settings.
- Then I have Mikrotik router which is connected to Huawei and then spreads internet to other devices.

I used to have DSL modem before Huawei and thats why I want to keep Mikrotik in charge as it was before.
Internet is working great and DHCP from Mikrotik also.

The problem is that I want to use DNAT as before on Mikrotik. I have some devices in LAN I want to access.
But the problem is that Huawei does not have option to work only as bridge.
It has DMZ option in which I can enter Mikrotik IP and also "standard" Virtual settings on which I can set up port forwarding.
I can see that I get access on Mikrotik but then sth is wrong it does not allow access and send it back over Huawei.

Can somebody tell me how to set up this. I belive I must have two NATs but I havent done this yet so I dont have an idea how to do it.

Thanks for all the help in advance!
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I'm trying to pull default route information from my Cisco routers via SNMP in an effort to more accurately track when a main connection goes down and a failover route kicks in. Using snmpwalk from Linux machine I cannot seem to get any information out of my devices. Neither "ipRouteNextHop.TARGET_IP" or "ipCidrRouteNextHop.TARGET_IP.SUBNETMASK" returned useful numbers. I've set up my SNMP machine as an SNMP host on these routers.

Routers
-1841 on 12.4(24)T8
-1921 on 15.2(4)M4
-2821 on 12.4(22)T5
-1841 on 12.4(22)T5


Commands
snmp-server host <snmp machine IP> <community string>

snmpwalk -v 2c -c <community string> <router IP> ipRouteNextHop.<router next hop>
ipRouteNextHop.<router IP>: Unknown Object Identifier (Sub-id not found: (top) -> ipRouteNextHop)

snmpwalk -v 2c -c <community string> <router IP> ipRouteNextHop.<router next hop>.255.255.255.255
ipRouteNextHop.<router next hop>.255.255.255.255: Unknown Object Identifier (Sub-id not found: (top) -> ipRouteNextHop)

Open in new window


Thanks in advance.
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Routers

46K

Solutions

23

Articles & Videos

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.