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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3answers
28 views

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

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
18 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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2answers
2k views

cisco ip nat / port forwarding

I have been trying to get port forwarding working with a newly installed cisco router. I cannot seem to find where my fault is and have been looking for quite a while. The relevant section of my ...
0
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1answer
28 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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0answers
21 views

how to configure netflow monitor on cisco 3750G switch

I have an Cisco 3750G switch. I want to run netflow monitor on it. Does this switch support netflow? show ip cache flow Does not show any output. interface GigabitEthernet1/0/45 description ...
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2answers
33 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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votes
1answer
36 views

Cisco static routing can't get through and doesn't make sense [on hold]

I have a internet connection through a router that is my consumer grade @home router. It runs a network of 10.0.0.0/24 with the gateway of 10.0.0.1. I have another router in the house for a school ...
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2answers
2k views

Cisco 1242 WAP Configuration to broadcast SSIDs

OK, one would think this would be an easy question to answer. But searching online yields no results to our particular issue. We have Cisco WAPs that require configuration to broadcast the SSID of our ...
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1answer
1k views

Voice VLAN Configuration on Cisco SG300

We currently have a single Cisco SG300 switch on our data network. We are introducing a hosted VoIP system. As such we will be installing a second Cisco SG300 (to account for growth and new phones) ...
3
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0answers
868 views

cisco asa reloading

After having both memory and code upgrades, we have a significant number of our asa 5520's (in active/standby pairs) develop problems. The problem manifests itself as losing connectivity to the other ...
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0answers
22 views

How setup a network that serves its Head Office and 10 branches? [on hold]

As a new student on networking i need help on this task have tried it on my own but i failed it. kindly assist me. Scenario A bank needs to setup a network that serves its Head Office and 10 ...
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1answer
1k views

Setting up Splunk/IronPort WSA

I recently stumbled across Splunk 4 (by way of an advert on this very site...) and found that it had an "App" that's designed to work with Cisco IronPort WebSecurity and E-Mail Appliances! That's ...
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0answers
14 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 ...
0
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1answer
16 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 ...
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0answers
10 views

Need to replace a Cisco 871 [closed]

I have a Cisco 871 that does everything I need, but it doesn't have gigabit ports. Can someone recommend a replacement router with gigabit ports that is as close as possible so I can reuse my ...
1
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3answers
71 views

Using a computer with many COM ports as a low cost out of band solution?

I'm trying to come up with a cheapo out of band solution for my cisco routers in our data center. I want to be able to access them directly from the console remotely so if they are not accessible from ...
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0answers
22 views

Commands for knowing the SIP Channel capacity [closed]

Is there a way we can find how many parallel SIP sessions can be made? I am trying to understand how to calculate the SIP trunk utilization. Is there any command or SNMP MIN to find that out? It has ...
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0answers
3 views

How do I set netflow collector on CIsco SG220 switch? [migrated]

This is the first cisco switch that I am dealing with at home. Older, more consumer friendly, switch had simple way to specify netflow collector. Where can I set it up on Cisco SG220?
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3answers
174 views

CISCO - host header forwarding possible?

Is it possible to realize a kind of policy-based routing in cisco ios, which forwards 80port requests on external IP to internal hosts based on host header information (http address). So if somebody ...
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votes
1answer
1k views

Cisco 1142 AP not joining WLC

I have one an issue that I would be extremely grateful for help with. When I check the AP join statistics I see the following: Reason For Last Unsuccessful Attempt RADIUS authorization is pending ...
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0answers
40 views

Cannot Reach Secondary Subnet on Same Interface

I am running a Cisco 1841 which has an unmanaged Dell 2848 connected to it. Connected to a WIC card in the 1841 is a fiber run which goes to a subnet of devices. The primary subnet is 192.168.2.0/24, ...
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0answers
20 views

How many subnets and hosts per subnet can I get from the network 172.22.0.0 255.255.255.224? [duplicate]

Hi I am having a bit of difficulty calculating the problem. Here is how the problem is apprached. 128 64 32 16 8 4 2 1 So I know the subnet mask in binary is 11111111.11111111.11111111.11100000 to ...
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0answers
7 views

Open ports in firewall on Cisco SRP500 Series?

I have a Cisco SRP527W. I cannot work out how to open ports in the firewall for all machines. In the past, I port forwarded to the server, but now I just want a port open to all users of the network. ...
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2answers
1k views

Limiting Bandwidth per port Cisco router

Let's say a businessses purchases a sufficently fast internet connection (such as 60Mbps cable connection) and VOIP quality is pretty good for the most part. The only thing I would be worried about ...
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4answers
118 views

Cisco ASA Implicit rule dropping traffic

The network is as follows: Two Default Gateways exist on the network - one which provides connectivity to the an MPLS with several subnets. Let's say 10.0.0.2 Another which is a Cisco Firewall, on ...
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1answer
1k views

cisco CUCM 8.6.x configuration export

We currently have a Cisco server running CUCM and cannot get access to the system due to a 'Database communication error' received when attempting a log in to CUCM homepage. Is there any way to ...
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0answers
10 views

Getting L2 switch info from the data port on a Cisco IP phone?

Here's what I'm trying to do: I'm trying to get the information on which switch/port that a jack wired to. On that jack, there is a Cisco IP phone (7942), and a computer plugged into its data port. ...
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votes
1answer
33 views

Cisco Router configuration prompt not working

First of all I am new to Cisco, We are moving from an old T1 to Fiber Optic and I need to configure our Cisco 1841 router to the new IP, DNS, etc. I watch some videos and I get the overall concept ...
4
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3answers
497 views

Troubleshooting network latency

An apartment complex has fiber internet and is experiencing latency problems over the last month. Tenants frequently experience timeouts and corrupted webpages. The current work around it to refresh ...
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1answer
2k views

Cisco - Port's configured trust state is now operational

I am looking at a Cisco switch's log at work and am a bit confused by how verbose it can be at times. For instance, we use automatic QoS here and I often see this when phones are plugged: Mar 18 ...
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votes
2answers
150 views

SCCM 2012 R2 OSD pxe-32 : tftp open timeout

I have SCCM 2012 R2 standalone primary site on windows server 2012 and i have Cisco dhcp server i configured the distribution point for pxe boot to work with osd i added boot images and configured ...
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0answers
18 views

Commands for monitoring SIP Trunk [closed]

Need help in getting the Cisco IOS commands for monitoring the SIP trunk in the VoIP gateway. For monitoring the trunk usage, binding the calls to specific trunk's channel and all. Please help by ...
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2answers
52 views

Creating a bridged network in ESXi VSphere using VSphere client

I'm new to ESXi and i'm trying to configure a small server of guest machines, each running windows 7 starter. my goal is to let the workers connect to the ESXi server, get a windows "computer" and be ...
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0answers
16 views

Cisco multi switch / multi VLAN monitoring

I have a DMZ and a internal LAN with VLANs that I wish to port monitor by means of a NIDS and three switches, if this is possible. Switch 1 (DMZ) 2950 / VLAN 10 & trunk port to Switch 3 Switch 2 ...
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votes
2answers
1k views

Unable to PPTP through NAT on Cisco 881

I'm trying to connect to a PPTP server which is sat behind a Cisco 881 NAT router. The server is running Ubuntu Server 12.04 and is running Poptop pptpd as the PPTP daemon listening for connections. ...
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votes
1answer
66 views

ACL Rule to Open UDP Ports

I have the current rules in an attempt to open port 5060 and 10000-20000 for my VoIP provider. We are on a Cisco 1921 router. This ACL is applied to the WAN port on the router facing the ISP. Nmap ...
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0answers
13 views

cisco switch 4900M X2-10baase -LR module

I have cisco 4900M series core switch as we have installed X2-10base-SR module for MM fiber.For long rang we have brought X2-10base-LR module for single mode fiber. After installing the module in ...
2
votes
3answers
162 views

CISCO 2948 instead of 2950 for CCNAS

I'm building a CCNA/CCNAS lab, I can get my hands on some cheap 2948 level 3 switches. I was wondering if they also can be used for the CCNAS labs as I always see the 2950 mentioned for these. Are ...
4
votes
4answers
3k views

Cisco ASA user authentication options - OpenID, public RSA sig, others?

My organization has a Cisco ASA 5510 which I have made act as a firewall/gateway for one of our offices. Most resources a remote user would come looking for exist inside. I've implemented the usual ...
0
votes
1answer
1k views

VTP does not update on client switch

I recently replaced the switch that was functioning as the VLAN server for the rest of the network. Since the replacement however, I have not been able to push any new VLANs to the Client switches. ...
0
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2answers
2k views

Setting up VPN on CISCO ASA with private IP on outside interface

I am trying to setup our ASA 5510 to allow IPsec(IKEv1) access to the inside network through VPN. The hard part about our setup is the outside interface does not have a public IP address assigned to ...
0
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2answers
400 views

Limit bandwidth in cisco router with policy-map doesn't work

I have a problem with my scenario in limiting bandwidth of ubuntu PC in GNS3 with class-map and policy-map. this is my topology in GNS3: ...
0
votes
1answer
16 views

Aironet 1252 not booting

I have a 1252 Aironet AP that does not boots up. I've plugged the console cable, but displays nothing. After connecting power via PoE, I just got the radio LED on red after 5 seconds. I've checked ...
0
votes
1answer
25 views

IPSEC one way issue

We have a frustrating issue and I'm hoping someone here can see what I'm missing. We have a small hub and spoke network between 4 sites and a datacenter, each location connecting to each other ...
0
votes
1answer
25 views

Cisco Router DHCP Error Logging

I am troubleshooting an issue where a DHCP client is not receiving an address during PXE boot, but receives an address with no issues once booted into Windows. Our Cisco router is also our DHCP ...
3
votes
1answer
63 views

Logging commands on cisco devices

I'm searching for a way to log every command executed on a cisco switch/router, I have a catalyst 2960s with lanbase image, and a catalyst 4500e with ipbase image. I've found a way to log commands ...
1
vote
1answer
42 views

Migration to Cisco Nexus 3064-T

In my environment I have 9 ESXi servers (ProLiant DL360 G7 & DL360p Gen8) and NetApp FAS2240 that is used for storage (NFS datastores). Currently, we have 1Gbps network with multiple VLANs ...
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0answers
11 views

Snmp - clear portsecurity sticky address in cisco

i am writing script to clear particular sticky mac address. I have fount that snmp oid is: 1.3.6.1.4.1.9.9.315.1.2.1.1.14 it can take following values: 0:done 1:dynamic 2:static 3:sticky 4:all ...
1
vote
1answer
43 views

SSH/SFTP over WiFi issues

Some time ago we have purchased a Wireless Controller (AIR-CT2504-K9) with few Access Points (MIMO 3x3). The number of users on one access point is around 20-25 simultaneously. As I have understood ...
0
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0answers
37 views

IPSec site to site VPN

I am trying to connect our server to cisco site-to-site IPSec VPN with one of our partners servers, they asked us to implement the settings they gave us into our router, but actually we don't have ...