Cisco is a major provider of switches and routers to most medium and large companies. Cisco devices often run IOS or NX-OS. This is a generic tag to be used when no more specific tags are available. See the partial list of tags in the full Tag Wiki.

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Is it possible to make a connection between a Linux router and AWS Direct Connect without the need of physical hardware?

We bought one Amazon Direct Connect leased line to connect our datacenter to Amazon EC2 instances. Amazon has configurations for Cisco or Juniper Hardware ...
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14 views

CISCO ASA: Add specific command to a privilege level

i am facing the following issue, created a new account with a "read-only" access on a CISCO ASA 5510. This account will be used in a script that will back up the running-config of the ASA. the ...
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18 views

Cisco 2801 Router ADSL Config

I haven't done a Cisco configuration from scratch before but I'm trying to get familiar. I've only made adjustments previously. That said, I'm trying to diagnose a problem with using my Cisco 2801 ...
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0answers
12 views

Creating Wireless Hotspot in Cisco Wireless Setup

I have a Cisco wireless setup (having controller, AAA server and access points) in my office. I want to setup Hotspot in one of my office location ( like the Airport Hotspot solution, where you can ...
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1answer
24 views

Cisco switch: Trunk port MAC address disppearing from MAC address table

I have users complaining of slowness on their machines but we can't find anything specific (ping tests, etc). I'm trying to rule out the connection between the switch they're plugged into (3560) and ...
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26 views

Tool to view software installed on a network [closed]

In our network ... i enable port mirroring and mirror our uplink port and wanted to monitor the mirrored port so i can find out what are the software installed/available in our network. Is there any ...
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0answers
22 views

Ground for server rack on 3rd Floor [on hold]

I am in the process of building out a server rack in an office on the 3rd floor. Does anybody know of any good options out there that can help me out? Is there some sort of adapter I can plug into ...
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1answer
15 views

CISCO SSL VPN (multiple Sites) [closed]

I'm having a small issues and I'm sure it's NAT related. Our Users connect to SSL VPN in Ft. Worth. We also have a site up in Dallas. There is a current Site to Site connection there with full ...
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0answers
13 views

Clear interface config using macro and range in cisco

I want to write macro which than i will apply to interface range and clear to default interface configuration in that range. Is it possible?
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27 views

Low TCP down speed on network interface

We have HP Proliant ML370 G6 server with 4 gigabit ports on it. 3 ports work well, but 1 (LAN1) cuts TCP Down traffic. TCP Up and UDP is ok. Here is the speed test result. Here is the windows monitor ...
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0answers
46 views

What version of NTP is a Cisco product running [closed]

Just wondering if there was a way to check which Cisco model or IOS version had what NTP version on them. For clarification: I had checked this document. I had seen the version and assume it was the ...
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12 views

Cisco VPN - second network

I am having trouble getting a additional inside network working on my VPN connection. I have working a VPN connection between my inside network on 10.10.20.0 and my peer. I want to connect my ...
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1answer
51 views

Download startup config from Cisco device using SCP

I can successfully download the config from Juniper network devices using SCP - I'd like to do the same for a Cisco router. SSH access is already working, and I've enabled SCP using ip scp server ...
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1answer
50 views

Cisco - LACP between two Catalyst switches (trunk links)

So I just put up a LACP between two Cisco catalyst switches. Snippets of configuration are as following: [3550 switch - port 22 and 23 are connected to 2950 and 24 is to router] interface ...
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0answers
16 views

Remote WOL over CISCO/FW not Forwarding

I'm trying to accomplish a Wake-on-LAN by triggering the two servers' public IP addresses. Internally, the WOL works like a charm (by either the internal or external IP), externally however, it does ...
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0answers
33 views

VTP trunking not working for Cisco 4948 switch

I'm adding a new Cisco 4948 switch to an existing network that has a bunch of 3500 series switches already configured and working. I've verified the VTP domain and password are identical, tried ...
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0answers
30 views

ASA 5512 9.1(3) Port range forwarding for two servers on 1 public ip

I currently only have 3 public ip. What i am trying to do is port forward a range for 2 servers. Server 1 has an a port range of 5000-6000 and server 2 has a range of 70000-8000. It is easy to add the ...
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1answer
26 views

Forcing traffic through an IPS on a flat network through a bump in the wire

I have the following topology: Click here, unfortunently I don't have enough rep to post images Essentially I would like the packet flow to go from PC1, to the Core Switch, to the Edge Switch, and ...
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0answers
12 views

Tethered VPN on Macbook fails to connect, but standard VPN over WiFi works [closed]

I have a MacBook using the Cisco client and it works fine except when I use the special Mac/iPad ability to tether over the iPad data connection. For those that are unfamiliar with this, the Mac and ...
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1answer
46 views

Nagios Core to monitor Cisco VPN Tunnel

I am able to see if a VPN tunnel is up using check_snmp. The OID for one of my tunnels is .1.3.6.1.4.1.9.9.171.1.2.3.1.35.3002962. When the tunnel is up, no problems. The problem, is when the ...
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0answers
15 views

Remote Desktop Gateway temporarily unavailable outside LAN

I have setup Microsofts RD Gateway on a server in one of our subnets. We have multiple subnets separated by a Cisco ASA firewall. One for servers, one for desktops etc. If I run mstsc from the server ...
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1answer
33 views

Cisco VLAN can see other Domains in other VLANs

A new location I've been visiting has 3 fiber connected buildings using Cisco switches. They are each on a separate subnet and separate vlan. 192.168.0.0/24 (VLAN 10) Building 1 192.168.1.0/24 (VLAN ...
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18 views

Connectivity issues to hosts over MPLS

Original thread on VMware for reference: https://communities.vmware.com/thread/490718 Hello, We have been troubleshooting an issue that prevents our vCenter server from connecting to some of our ...
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1answer
45 views

Network maintenence time - Cisco & Juniper

I maintain Cisco & Juniper equipment, lately developers are complaining that router upgrades take too long. Since we don't have high availability yet. How would I cut downtime? I currently do: ...
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0answers
10 views

Cisco Jabber 10.5 install via GPO

Cisco Jabber 10.5 install via GPO I am trying to setup a GPO to install the latest version of Cisco Jabber. When I create the entry under Software Installation the properties for the product ...
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2answers
110 views

Site to Site VPN between CISCO 2921 and Sonicwall NSA 3600: NO_PROPOSAL_CHOSEN

I have CISCO 2921 and Sonicwall NSA 3600. I am trying to setup Site to site VPN. I am getting: Received notify. NO_PROPOSAL_CHOSEN in Sonicwall logs and the VPN is not setup. It looks like the ...
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1answer
58 views

VPN (PPTP) connects successfully but unable to ping some devices in the LAN

My working company has this router (Cisco RV042G Gigabit Dual WAN VPN Router) and it has the IP 192.168.1.1 with subnet mask 255.255.255.0. It has 3 devices directly connected to its LAN ports, an ...
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1answer
28 views

When does the operator operand after the source address get used in an Access Control Entry

During my Cisco networking class I noticed something that confused me pertaining to extended access lists. In the Cisco NetAcademy curriculum it lists this example of the syntax for an extended ...
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50 views

802.1x dynamic vlan assignment not assigning VLAN

I recently dived into 802.1x authentication with dynamic vlan assigment. My current set up contains of: - A client - A SG220 cisco switch (the supplicant) - A freeradius (authenticator) ...
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20 views

How to connect Cisco 2911 into internet through the ISP's router? [migrated]

I recently got almost brand new Cisco 2911 router and Cisco 2960 switch for free from school. I've been configuring both a little bit in school so I can handle the basic stuff. I currently live in an ...
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0answers
31 views

cisco ip helpder-address not working

I have 3 Cisco Catalyst switches: 2 3750 series and one 3550. The appear to suffer from the same problem. If I define a VLAN, configure a DHCP address assignment on it and then issue a command for it ...
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25 views

Cisco 5512-x TCP request discarded

We have a fairly basic ACL and NAT rule allowing RDP inbound and NAT'd to a LAN IP (all IPs replaced with IP) object network STATIC-PAT-RDP host IP access-list outside_access_in extended permit ...
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11 views

Cisco process memory usage

I am trying to monitor a Cisco process memory usage. This is what I get with the command line: show system internal processes memory | inc PID|ipfib PID TTY STAT TIME MAJFLT TRS RSS ...
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0answers
25 views

Rescue Configuration for Cisco 3925

I recently upgraded our Cisco 3925 with the latest firmware and it returned a segmentation fault. I restarted it and now the console port won't connect. Any ideas on how to restore the flash to a ...
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0answers
33 views

Cisco serie 4400 internet configuration with low performance

The issue: I have been trying to set up the network on a cisco router. It is working, however it is very slow. The configuration: Gi0/0/1 is connected to internet (ip 100.38.214.2, gateway is ...
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15 views

How to set up a simple Cisco ISG config for controlling internet access

First off, here is my config so far. http://pastebin.com/fV2NGCE2 I've gone through a few guides online and the 15.2s manual and the xe3 manual for Cisco's ISG (intelligent services gateway) and ...
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2answers
66 views

Avaya 4850 GTS & VSP 7000 - setting up a fibre trunk, no MLT

I'm a junior network/sys admin, and I'm stuck (and my seniors aren't sure what to do). I have a VSP 7000 switch which is a core switch. And a 4850 GTS switch which is like access switch. The switches ...
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31 views

How to know what number was dialled on incoming call

The scenario In the UK. I have one (BT openreach) phone line coming into a Cisco SPA232D. That phone line is ringable on a number, let's say 01235AAAAAA. I have a virtual number, 01235BBBBBB, which ...
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1answer
37 views

Cisco Router: ran 'no enable password'; 'enable' still asks for a password

I have a Cisco router (it's hard to access physically so I can't tell you the model) being used as a NAT without a firewall (inside the network in such a way that that does not pose a security thread) ...
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28 views

Cisco 1921 router stops routing traffic

I have a cisco 1921 router that recently started acting up. I haven't changed anything on the router in many months because everything was running smoothly, until a week ago. Configuration: The setup ...
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1answer
27 views

How to move company voip phones to a different subnet by modifying DHCP of a Cisco Switch?

Our company has replaced its old voip phones with new ones which are the NEC phones. We are done with the configuration part, and the phones are working fine. But I want the phones to be in a ...
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0answers
24 views

Serial connection to Cisco C40 not taking input (Putty/Hyperterminal)

I have a cisco c40 video codec that is not accepting the admin credentials that I established for it over SSH/HTTPS. I suspect that the config file is corrupt as there are other erroneous behaviors in ...
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3answers
64 views

Filter network traffic through 2 WANs depending on IP?

I've searched thoroughly in an attempt to find a similar question here, but aside from finding information about pfSense (which appears to only support 1 WAN?) I can't find much else... Our current ...
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1answer
42 views

Cisco ASA separating networks

We are using a Cisco ASA 5505 running ver 9.0 to separate our corporate (inside) network from a dev lab (outside) network. We would like to use NAT or PAT to forward the inside interface IP to a set ...
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3answers
108 views

Why can i not ping my host behind the firewall. Cisco asa 5505 [closed]

Can anyone please help me to figure out what in my configuration of the Cisco asa 5505 is wrong or missing. I have multiple host behind my firewall these hosts run different websites on port 80. I am ...
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1answer
85 views

Cisco IOS, Multiple WAN & Port Forwards (Outside -> Inside PAT)

I have been trying to work out how to accomplish PATing from Outside to Inside on a Cisco IOS router, in this case specifically a Cisco 2901 running IOS Version 15.1(4)M1. Firstly, the problem I am ...
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1answer
41 views

Third party getting access to industrial machine on network

I need to allow an outside company to get access to an industrial machine that is on the internal network of our company. The network setup is a Cisco router that is owned and controlled by our IP ...
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1answer
44 views

How can I tell if a cisco router is dropping pings due to DOS suspicion or if it's experiencing packet loss?

We use a PRTG server that's connected to a cisco 6500, which feeds a large network of about 1200 switches and radios in a router-on-a-stick topology. In PRTG I'm able to set a 'ping burst' sensor on a ...
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2answers
71 views

Maximum power allowance for server rack

I have a server rack which consists of the following items 1) 1 x Cisco 3750V2 Layer 3 switch (24 ports) 2) 3 x Dell Power Edge R720 I am not sure which criteria I should be looking for to ...
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1answer
30 views

Cisco RV220W - No route to host between devices on the same subnet

I have a problem where devices cannot connect to each other using their respective IP addresses, but if a device uses it's own IP address it can connect. When you try and connect to a remote device ...