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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distribute-list prefix Prefixname gateway

Can someone put an example of what the command does?

distribute-list prefix Prefixname gateway in

Thank you
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Introduction to Web Design
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Introduction to Web Design

Develop a strong foundation and understanding of web design by learning HTML, CSS, and additional tools to help you develop your own website.

IP prefix-list

Any Expert to explain what is covered in these IP prefix-list statements below:

ip prefix-list CLASSB permit 128.0.0.0/2 ge 17

same as this :
ip prefix-list CLASSA permit 0.0.0.0/1 le 27

Thank you
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Dear Experts, I'm testing the ARP inspection in Cisco switch 3750 and get this result when using show ip arp inspection command

Capture.PNG
Can you explain the results and suggest? Many thanks!
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Dear Experts, I have server farm at network 192.168.55.0/24 (Exchange 2016)

I can access the servers from other network but CANNOT from some servers in the same network 55

What can be the reasons? Many thanks!
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Maximum size of IP and TCP  Packet.

There is a little bit of confusion when it comes to the Maximum size of IP and TCP  Packet
I did some reading nline, I have seen numbers of 65Kbytes and 1500 Kbytes but not clear which number goes with IP packet and which goes with TCP Packet.

Any Clarification?

Thanks
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Good day,

FortiGate 60E

I need to configure a new static IP range on a FortiGate firewall that would represent internal servers such as HTTP, SQL and APP.
The client does not want to map IP's from the FortiGate to the servers, instead want to install the actual newly allocated public IP's on the internal servers second NIC:

WEB:
NIC1:  LAN IP:   192.168.1.1
NIC2:  WAN IP:  51.159.149.50 (NEW)

SQL:
NIC1:  LAN IP:   192.168.1.2
NIC2:  WAN IP: 51.159.149.51 (NEW)

APP
NIC1:  LAN IP:   192.168.1.3
NIC2:  WAN IP:   51.159.149.52 (NEW)

FortiGate 60E
Firmware v6.0.2 build0163
Mode NAT (Flow-based)

Current Static IP range in use on the FortiGate (WAN1):                   "51.159.155.90 - 51.159.155.95"         51.159.155.90/29  
New Static IP range received from ISP that needs to be added:      "51.159.149.50 - 41.159.149.62"         51.159.149.48/28  

The ISP had already forward the new IP block on to the existing WAN IP of the router, if I add one of the new static IPs as a secondary WAN IP address I can ping the newly allocated IP over the Internet.

Could someone please assist with clear steps on how to configure the new IP range/NAT on the FortiGate so the servers on the LAN can be configured with the newly allocated static IP addresses from the ISP.

Thank you
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Hi Guys

I have VRF setup between routers .
I know we can ping the interfaces by - ping vrf VRFNAME xx.xx.xx.xx

But How do I ping/tracert test remote device IP address ? The reason is when I ping test remote computer IP from router using above command, not able to ping but can ping its IP from devices behind the router.

Please advise?
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EIGRP Best Path Selection

Assuming R1 has 2 paths to reach route 11.11.11.11 behind R4

R1--->R2--->R3----R4
R1---->R5--->R6----R4

The bandwidth : R1 to R2  :1.544kbps  R2 to R3: 128Kbps  R3 to R4 : 1.544kbps

The bandwidth : R1 to R5  :256Kbps  R5 to R6: 256Kbps  R6 to R4 : 256 Kbps

Which path R1 will choose to reach R4 ?

Thank you
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Dear Experts, how can I configure the traffic shaping at L2 ?

We are using Switch Cisco 3750 / 2960, Catalyst Express 500

Many thanks in advance!
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AnyConnet VPN client can access the internet via the remote gateway, but cannot internal servers.

I followed the instructions from (first example, with tunnel all configuration)

https://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/100918-asa-sslvpn-00.html#anc7


I can not ping or access the 10.10.30.99(Internal server) or 10.10.30.2 (ASA internal LAN) after connected VPN.

Could I please have some advice? Many thanks.
ASA-show-run.txt
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I have (several) 7301 routers running 15.2(4) that are located behind Comcast routers.  I need them to VPN to a public router knowing that the Comcast IPs might change at any time based on factors outside of my control.  So the central VPN point is my only fixed location and the 7301s all sit BEHIND a vendor provided router.  The 7301 gets its IPv4 from a DHCP server (again, can change) and its IPv6 from SLAAC.  The central router has both fixed IPv4 and IPv6 addresses on it.

My goal is to route everything on the G0/1 side of the 7301 to the central router (ASR running IOS-XE 3.16.07b [asr1001x-universalk9.03.16.07b.S.155-3.S7b-ext.SPA.bin]) including both IPv4 and IPv6.  I'll want to run OSPFv2 and OSPFv3 across the link.

Note that the central router is actually on the public network with real world IPs.  The 7301 is behind a Comcast business router *somewhere*.  The goal is to create a tunnel for IPv4/IPv6 between the G0/1 side of the 7301 and the central router.

Performance is a plus. Secure tunnel is not a requirement, but nice as long as its not a significant impact to throughput.

My assumption is that the 7301 will have to initiate a connection to the central router. But in all my experimentation, I haven't been able to create a GRE tunnel without a valid destination (which the 7301 does not have) nor have I yet been successful in an IPSEC tunnel that can carry both IPv4 and IPv6 over it.
Drawing2.pdf
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Within Cisco ISE...we're trying to figure out why a particular user keeps getting denied by locking his account.  I'm not very familiar with this tool and need to know where to look for this audit/log.  I've looked around and seems like it maybe coming from the AD side, but not 100% sure.  Also need to know exactly which device is doing the denying.
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I have several schools we run an after school program with some are hard wired the others have Hotspots with VOIP phones. Anyhow the end user is using tablets or laptops. I need to setup the Hotspot and router but was looking for any ideas on spreading the signal? I was also considering some sort of Antennas?

 I'm unable to run wires, everything goes in our office and then from there. I need a stronger signal that can go 40-60 feet. I thought about using the hotspot and then using powerline to where the router will go? If that makes any sense. Hook the Hotspot to router, that will need a wire to get the router into the other room.

I have disabled the wireless on the hotspots so I can use my equipment. I have 2 schools I need to set this up at. I'm not sure what to buy or get yet? I'm going for a powerful router but to get from point A to B and then out to tablets. The kids could have 2-3 rooms to use.

Any ideas or anyone with experience that can suggest. I'll get Netgear 3200 unless someone has a better option. I wanted to get Ubiquiti's but I cant run a POE setup on the power adapters....

Any suggestions are greatly appreciated. I need to order equiptment soon... Thank You All...
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How do I set port forwarding to connect my exchange server with the public ip of my mail.domain?

Do I need Routing and Remote Access Service (RRAS)  If so do I put it on a DC01, DC02, Gate, Exchange or create a new Server to put it on?
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Which fortinet product will be suitable for my small business with 2 servers. and 60 employees? I currently use uap-ap-pro access point. I had a ransomeware attack in december, and fortinet was recommend, but they are so many, 30e, 60e, 30d, 100 e.. etc.. which one is recommended and why please?
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Hi,
 
 I am looking for an internet router with dual WAN ports.  I use CISCO C891F-K9 and it works well. But it only delivers up to 100Mbps speed in one of the WAN ports. Recently Spectrum installed 400/20 Mbps internet speed and I like to make sure that both WAN ports can handle internet speed up to 1000Mbps.
  I love CISCO "high-end" product simply because it has not failed or died during my ownership. I have retired them because technology was old, but never because of mechanical failure. However, I am not limited to CISCO brand, so I like to hear about other products.
 
- has to be able to handle VoIP phones
- Dual WAN ports with 1000Mbps speed
- Router must be able to switch between primary and backup WAN ports on-demand automatically.
- 24/x7 tech support with annual support fee paid.
- Once configured and installed, you can forget about it.
- does not have to have GUI

Thanks in advance.
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I keep receiving two (2) of the following security alerts from our Cisco AMP.  I've ran Malwarebytes and windows removal malicious software tool, but I don't see anything to continue to research and they both come back clean once I run them.  Your insights into this challenge, please.



Alert #1

Detection:  Generic.PwShell.Rozena.1.952A7558
Fingerprint (SHA-256):  8bf3d87a…fe452fde 

File Name:  ~WRS{EE671C0A-0D0D-42A5-A29A-5CC105F8CB8C}.tmp
File Path:  C:\Users\...\AppData\Local\Microsoft\Windows\INetCache\Content.Word\~WRS{EE671C0A-0D0D-42A5-A29A-5CC105F8CB8C}.tmp

File Size:  4.69 MB
Parent Fingerprint (SHA-256):  44ee8fdd…08a18579 

Parent Filename
OUTLOOK.EXE

Open in new window


----------------------------------------------------------------------------------------------------------------------------------------
Alert #2

Detection:  Generic.PwShell.Rozena.1.7C8435A0
Fingerprint (SHA-256):  61ad8810…8537bc8c 

File Name:  olkFBD4.tmp
File Path:  C:\Users\...\AppData\Local\Temp\olkFBD4.tmp
File Size: 14.27 KB
Parent Fingerprint (SHA-256): 44ee8fdd…08a18579 

Parent Filename
OUTLOOK.EXE

Open in new window

0
which MPLS process pushes the VC/Attachment circuit label onto the mpls stack.
the tunnel label (ldp label) is pushed onto on top of the VC label by i would guess CEF, but what process is responsible for addressing the VC? AToM?
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Hi,

We have a Ring Video Doorbell 2 which we purchased recently.

Our router that provides WiFi connection is an Eircom F1000 modem.

The plan was to connect the doorbell to our router's WiFi and connect it with our mobile devices.

This worked fine and there was no problem with internet connectivity for the doorbell.

We then went to install this doorbell at the door of our office but found that the doorbell experienced WiFi connectivity problems when we went to do so.

The area seems to have weaker WiFi as it is further away from our router.

What would you recommend we do to resolve this?

Thanks,
Robbie
0
Learn SQL Server Core 2016
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Going through link upgrade. Telstra has suggested business IP plan, with Cisco router C1117 on a 3-year contract. A current, router is Cisco 2010 with 8 port POE. I'm not sure about the router they offering C1117 which is 4 port POE and 4 Port LAN,

Have anyone had experience with link upgrades and know if this router or other will be good for 50MBPS supporting 50 users (single site) and cloud integration with Microsoft Azure?

I love to hear some stories.
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Greetings,
I am using an UML290 USB Modem connected to a  3 foot USB cable that connects into the Sonicwall TZ300 Router  as our primary WAN connection in a very rural area.
The connection works good enough with bandwidth speeds consistently  at 9.0 Mbps down / 2.0 Mbps up.
The issue is.......
When I disconnect the UML290 from the Sonicwall TZ300 and connect it to my laptop's USB port and place & point the USB modem in the exact same location as it
is placed when connected to the Sonicwall TZ300 the bandwidth connection speeds are much higher at around 23 Mbps down / 10 Mbps up.
I have removed the 3ft USB cable and placed the Verizon modem directly into the USB port of the Sonicwall with out any increase in connection speeds.
I have no bandwidth limiting settings configured in the Sonicwall TZ300.
My questions are:
1) What should I look at / review in the Sonicwall TZ300 to determine if the Sonicwall is limiting bandwidth speeds?
2) Is this a known issue?
3) Is it possible that Verizon is limiting bandwidth when the UML290 is connected to a "Router" ?

Any insight into this issue is appreciated.
Thank you,
Com1
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hi Experts,

I have a SonicWALL Firewall 2600 and i need to configure MPLS and Internet so that my remote branch can access internet from HQ SITE on branch site. I use Cisco Router 1900 series, how can i achieve that configuration with SonicWALL firewall 2600.
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Trying to configure WCCP on Cisco ASA Running 9.x.
Added ACL's, Service Groups and Redirects.

Show WCCP is still showing "Router Identifier - Not Yet Determined", whereas this should actually be the public IP address on my outside interface.

The old command "ip wccp source-interface" is not recognized in this release (9.x)
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very slow behavior when open IE with twebbrowser (borland) - i have a page that open in a c++ program on the cloud - but the all  behavior is slow and evan the images and progress-bar  are stack and not moving- i have image that spin - but trow this way it not spin
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When Modem.ISP changing its machine mac ,  Router has multiple networks with interface and mac , how the networking entire of including computer' Ethernet mac to be identified and forwarded

                   - Storage time limit
                   - Update specially physical mac address time limit
                   - Network device recognized and validated
                   - BIOS Virtual core to the system swatch
                   - Modem ISP replaced few modems devices, and labeled Mac unequal to Apr detected real one mac before weeks all of since 2012 ...
                   
because of today confronting new found mac by  Arp - a having different mac from Modem and R connecting .  R.cisco.net keeps in Arp month ago mac . Modem.net already new by Arp cmd .
                  - Modem.net has two Mac from "netsh ipv6 show neighbour,  one from Nokia , another is Cisco Stale (Router) local layer gateway IPv6 ?  ISP.modem as if no longer mac
                     identifying the Authority of client to be ISP assigning IPs v4 & v6? Indicating the Modem.net case .
                  - Unreachable default IPv6 local layer gateway is from Cisco in the Modem.net. Is Cisco.R getting multiple nets , by using multiple wan.port and interfaces , defects with its
                     IPv6 gateway assigned to the ether.computer int ?  After clone ether.mac  to Wan.IPv6 , computer would via wan router by R.Cisco gateway full IPv6 likes .
                  - ISP.modem …
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.