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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VLAN Mapping on Brocade

We are moving from a Cisco 6509 to a Brocade 6650 for our core router. Some of our traffic is trunked through a link that belongs to someone else and they said we can only use VLANs 909-912. Our ...
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14 views

Cisco 3850 and 2602I Access Point not Broadcasting

I have a Cisco 3850 WLC and a 2602i access point in lightweight mode. The AP is showing up as registered in the WLC but no SSID's are broadcasting on the AP. I have enabled telnet on the AP so I know ...
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27 views

ASA 5505: How do I access the DMZ web server from the inside using the public IP?

We are using a 5505 ASA Sec+ (8.2). There are three interfaces: inside (172.17.0.0/24), dmz (172.16.0.0/24) and outside (1.2.3.4 for the example). There are static NAT rules set up translating ...
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18 views

How important is to keep up to date with cisco certifications and training books? [closed]

A coworker gave me book on Cisco CCNA ICND exam 640-811 training. I'm new to networking and thinking about getting certification if this book has enough relevant information to help me pass.
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1answer
26 views

Cisco Router NAT does not work

I have an active internet connection from provider on festethernret0 and also have vlan1. I need to have an internet connection from festethernret0 to my vlan1. I am doing it this way: access-list 2 ...
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9 views

CISCO - organize NAT with 2 WANs, 2VLANs and failover (using PBR / ip SLA )?

We have a CISCO 800 series connected to 2 WAN channels, and 2 VLANs. The idea is to have VLAN1 always use WAN1 channel, and VLAN2 use WAN2 channel, but in case of connectivity failure switch to a ...
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6 views

Cisco SF500-24P Image Upgrade to 14088 fails

I try to upgrade the system to 1.4.0.88 and it fails with error Status: Copy failed Error Message: Copy: SW code file is over sized I am using HTTP for the upgrade. Any suggestions?
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24 views

Cannot ping gateway (Intervlan routing)

I have two switchs cisco 2960 (sw-120 and IDF1-SW) and router cisco 1841 (IDF1-R). fa0/24 at sw-120 connected via fa0/7 at IDF1-SW fa0/1 and fa0/24 at IDF1-SW switched to trunk mode fa0/24 at ...
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10 views

CISCO IOS NAT existing network into VPN private IP address

I have a CISCO IOS router with two interface, int0 for internal network and int1 for internet. I have site-to-site VPN as below and wondering how can I configure NAT. [192.168.1.0/24] = existing ...
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7 views

LACP between 3 vendor switch stacks

i have 3 vendors: Dell, HP and Cisco and their switches: Dell 8132F HP A5120 Cisco 2960-S On every pair of switches is defined stack: Dell = Peer-link (MLAG, not really a stack) HP = IRF Cisco = ...
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1answer
25 views

VPN Tunnel Migration

I need to do a VPN tunnel migration from 1 Cisco Asa to another one on 20 remote routers. I wrote a little script that can automaticaly migrate the routers to the new ASA. However, when I run this ...
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14 views

Why two network with NAToverload not communicate?

I have two private networks: 192.168.1.0 192.168.2.0 These networks communicate with each other via static routing, but when I set up the NAT overload, they don't communicate. Why? I examined the ...
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1answer
39 views

OSPF among Cisco and Juniper

Below are snippets of ospf configs among Cisco and Juniper devices. However, not all are seeing each other in "show ip ospf", especially the redistributed routes into ospf. I'm sure the router id(s) ...
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1answer
14 views

Port Forwarding with Cisco SR520 IOS

I've been tasked with setting up port forwarding for access to remote desktop on a server. I'm having trouble making it work. Server IP 192.168.1.20, port 3389 The router is a Cisco SR520. It is ...
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11 views

CISCO 887va-w-e-k9 Configuration

I am trying to configure a CISCO router using the GUI. When I click on WiFi, CISCO remains stuck with the message, "Obtaining connection details of Wi-Fi interfaces". What am I missing?
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23 views

Cisco 2621XM Configuration with Comcast Business Modem

I have a Cisco 2620xm router that I have ran into trouble getting it to connect to a comcast modem/gateway for internet service. The router and modem used by Comcast is a DPC3... The interfaces on the ...
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18 views

Update Cisco 3750 for BGP

I have a Cisco 3750 switch that I use at my data center w/ a failover switch as well. Currently getting a blended bandwidth from the data center instead of BGP. From time to time I'll have them update ...
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16 views

Ucce 8.5 ICM - How to extract SIP Header in ICM script

We are collecting the sip headers from CVP Ops console. We are setting variables using the mid(call.sipheader,Startlocation,Length) If the string length changes, the values are not correct. Is ...
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1answer
47 views

Reasons for missing network access on Cisco switch

I'm having problems with a Cisco Catalyst 2950 switch, specifically I'm unable to connect to the router/get internet access through it. The setup is as follows: WAN connected to Router (MikroTIK ...
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2answers
45 views

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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1answer
23 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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40 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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21 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
52 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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1answer
26 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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19 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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1answer
50 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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18 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
67 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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2answers
72 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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24 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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48 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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1answer
33 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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17 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
76 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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24 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
35 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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27 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
71 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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18 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
176 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
129 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
31 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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97 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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38 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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20 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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29 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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29 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
102 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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49 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 ...