Questions tagged [cisco-router]

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GNS3: How to set random ip addresses to router and vpcs

I am using gns3 for my test labs. Most of the times I just want something up and running without wasting time setup router one by one. I was wandering if there is a way to set random ip address to all ...
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25 views

1941W wireless clients losing DHCP IP address

I am attempting to 'extend' a 192.168.1.0\24 network with an experimental network 192.168.10.0\24 using a 1941W router. I have configured 1941W to distribute a 192.168.10.0\24 network, with WLAN ...
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33 views

Adding 7-digit and 10-digit dialing using the Cisco SPA122

I am using the Cisco SPA122 ATA adapter with my home phone. My phone provider (CallCentric) provides instructions on how to setup the adapter, but their instructions only demonstrate 11-digit dialing. ...
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59 views

GNS3: Accessing Cisco IOS console via telnet or SSH?

This is a Cisco Router 3725 (R1) in GNS3 As you can see, in order to get to the console, R1 needs to be started, then hit console menu. Also, when I put my mouse on top of the router, it notice that ...
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21 views

OS image unaltered? SHA512 Checksum [duplicate]

looking for some professional guidance here. I am unable to get an IOS image from the original source but the file I did get matches the SHA512 and MD5 checksums from the verified source. Is it safe ...
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9 views

At what point will network interface utilization degrade performance?

I've got a Cisco inside interface that's routinely getting up to 98% utilization. At what point do you see a degradation in throughput? Does it have to reach 100% to cause problems?
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51 views

L2Tp forming session, but not tunnel (Cisco)

Two cisco routers For some reason they establish a session but not a tunnel. The session says: LocID RemID TunID username, Intf/vcid, Circuit State Last Chg Uniq ID 1 2 n/a 1, Gi0/1 ...
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29 views

Which IPv6 basic firewall rules (cisco asa) are necessary on your internet breakout router when using global v6 addresses in your network?

I am making a small virtual lab setup to do some testing with IPv6 global addresses only. I have a simpel setup: 1 Router/firewall (asa) to break out to the internet DMZ with 1 webserver with dns (...
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49 views

How to configure correctly secondary router with a DDNS?

This is my first time posting here - hope I'm asking in the appropriate place :) I am training now with computer networking concepts, and one thing that I was curious about is configuring VPN tunnel ...
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1answer
445 views

Troubleshoot internet connection dropping randomly for a few seconds

I noticed recently while playing online that my internet connection drops, disconnecting me from the multiplayer session, for then returning by itself a few seconds after, this seem to happen every 20/...
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1answer
112 views

Cisco router port forwarding works from outside networks but not from the local network

I have a Cisco Professional Express router. This is it's current configuration: #show run Building configuration... Current configuration : 6550 bytes ! ! Last configuration change at 10:56:18 ...
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397 views

IGMP Proxying, no traffic coming in

After posting this question to Network Engineering, I was told the site is about enterprise environments, whereas my setup is a residential network. Hence, I'll try my luck here. I managed to ...
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20 views

CISCO WAN without Dedicated/Static IP

I have some CISCO devices (firewalls & switches) I intend to set up a WAN between two locations but both locations are dynamic IP (residential broadband). The IP's of each location do not change ...
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32 views

Cisco Routing exclusion

I would like to know the best way of excluding a subnet from a route without creating many routes. For example on a switch I may have ip route 10.0.0.0 255.0.0.0 10.54.21.1 What I would like to do is ...
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70 views

Connecting CCNA lab to home switch for desktop access

SU Network Enthusiasts, I'm a little lost on how to connect my CCNA lab to my home network. I can have diagrams of both to ease the burden of answering this broad question: how can I access both ...
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443 views

Connecting 2 routers (2 networks) with 1 Internet

I have 50 Megabits Internet and I'm planning to get another router to give Internet to my friend, I want to limit 25mbs for him and 25mbs for myself I'm going to do that in a way that when I am not ...
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2k views

Cisco ISR 1100 basic configuration

I'm trying to setup my new home network with some cisco devices. I am new with configuration of business network devices, but I want to learn to work with them. But I have basic problems with my Cisco ...
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104 views

Unable to ping in windows 10

I do IT at the home office for a national Senior living facility. We have a facility that has been somewhat neglected network wise. there is a cisco 1900 asa there, and a cable modem to the isp. I ...
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1answer
340 views

Viking Door Intercom Connecting to ATA-190

I have a analog Viking W-1000 intercom connected to Cisco ATA-190 box, then into Cisco Unify Call Manager. Partition, CSS, etc have been set up, and for testing purpose, when an analog phone is ...
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39 views

Can a cisco router be configured as vpn site to site tunnel and AnyConnect vpn so can be reached from any place

I have a cisco router 800 series(head office) already configured as vpn tunnel with another router from same model in another branch(warehouse). My question is: Is it possible to configure head ...
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1answer
358 views

Corrupted Cisco Router IOS

I purchased some used hardware for CCNA/CCNP purposes, and I have a router that has a corrupted Cisco IOS. I have 2 other routers that have a good file. I'm trying to figure out the best way to ...
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107 views

Connect to my server from outside my network securely

I have a LAN with computers connected to server, what I need to do is connecting PC to this server securely from another location. My network structure is described in the image attached and needs ...
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54 views

Switch C3750-24PS-P [closed]

I have installed switch C3750 and need to install OS. There are only two files in the device, flash_init, and boot. There is no OS and load_helper and I have tried to use Putty to install but not ...
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306 views

Ping a remote host from a remote network

I am trying to ping the remote host E1 (please see the below Network activity Diagram in cisco Packet tracer) from another host in network A1, but am not able to ping, the ping fails. Somebody gave me ...
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375 views

security passwords min-length <x>

Dear superuser members, I have been trying to set a minimum length for passwords stored in routers, switches and ASA simulated in Cisco Packet Tracer 7.2. I have read in many threads that the command ...
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1answer
522 views

How to reach internal network vlans behind Arris Technicolor TG2472

So I have an Arris Technicolor TG2472 cable modem at home provided by my ISP. The modem has a WAN IP A.A.A.A and an internal IP address of 192.168.0.1 that is for the default-gateway. The modem device ...
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1answer
134 views

Fiber Speed Drop RV320

Not sure if this is the right site to ask this, but I noticed there are a number of RV320-related questions, so here goes. I have an AT&T fiber connection to my home that connects to my LAN ...
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1answer
93 views

How to automate change private key of SSH and VPN every 3 hours?

I Would like to change private key of SSH in Linux and Cisco device, and also VPN in every 3 hours. Can someone suggest me how to achieve it?
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1answer
53 views

Issues with second lan

I have the following setup Superhub3 192.168.0.1 eth1 192.168.0.10 CISCO ASA 5505 internal 192.168.1.1 eth2 169.254.x.x When directly plugging ASA into eth1, i can access 192.168.1.1 However, when ...
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13 views

How to show the interface configuration under a interface?

How to show the interface configuration under a interface? Router(config)#interface gigabitEthernet 2/1 Router(config-if)# if i use Quidway switch or router when I under a interface, I can use ...
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973 views

Cisco IOS: How to clear terminal?

In a Cisco IOS terminal session I'd like to be able to clear the screen similar to the clear command or the ctrl-L key combination on a Linux/UNIX box. Most sources suggest to reside to terminal ...
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1answer
307 views

WAN ports on GUI routers vs Cisco 890

Here's my conundrum: I'm coming over from using an RV320 router from Cisco and had previously used WAN1 to connect to an ISP's given static IP: IP: 215.114.xxx.xxx Sub: 255.255.255.224 Gateway: 215....