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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1answer
58 views

Cisco switch restart doesn't reload config

Something really strange happened to me today. I was configuring a 3750 switch and halfway through the changes I messed up. So I did what I've always done, unplug the power cable from the switch and ...
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25 views

Restarted BGP routers have no routing updates?

I configured 3 cisco c3725 Routers in GNS3 and I setup BGP and it was working fine at first. All 3 routers are connected to each other and each router has some loopback interfaces wich are the ...
3
votes
1answer
1k views

Configuring Cisco AIR-CAP-2602i as the only WLAN AP on the network

I apologise in advance I'm about half way through CCNA so I may be using incorrect terminology. I've been tasked with putting in a new network at work, topology as follows: Router Cisco 887VA-M-K9 | ...
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1answer
153 views

how publish multi web site with Same port 80 in multi inside web server with cisco router?

I have a problem in publish Multi web Site in multi web server with a single Public IP and all of these Web Sites use Same default port of 80 but have different URL address . I want publish all of ...
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0answers
91 views

ASDM - ASA Issue

This is actually a two part question, if anyone has had experience with the issue and could help me out it would be greatly appreciated. Backstory: Using GNS3 with ASA 8.4(2) and ASDM 7.1(5). I've ...
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2answers
73 views

Cisco Switch went mad

tI have a Cisco SLM2048 Smart Switch which I can't access anymore. The switch is working just fine but: I can't reach it by web interface Doesn't seem to be able to reset it, even if I hold reset ...
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0answers
77 views

cisco uc560 newly created extensions can't dial out

Our ucs560 is working fine, today I needed to add a few new users, our internal user extensions use the range 820 thru 867 or so. I added the new extensions 880-884. Internal calls back and forth ...
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3answers
77 views

Vmotion issues between hosts

Just added two new hosts to our infra, there is an issue with vmotion, the test vm moves over to the hosts no problem but I cannot ping or connect to the vm from outside vsphere once I move it too the ...
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1answer
49 views

Is there any advantage or reason with vertical chassis switch?

When I was looking for Cisco 6500 series chassis, I saw that there are horizontal(6509E) and vertical chassis(6509VE). Although 6509VE has same(or almost same) chassis height as 6513E, but 6509VE ...
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votes
1answer
54 views

what is a switch default gateway [closed]

I have two questions, please help layer 2 switch doesn't know how to routing, but if I set the default gateway in the switch, how can it "routing" or how can it forward the packet to the default ...
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1answer
174 views

Layer 2 and 3 Network and Topology discovery of blackbox network [closed]

I have been given a company network to perform layer 2 and layer 3 network discovery. I have to find out the network topology and infomation about network equipments including switch, router, server, ...
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0answers
95 views

Cisco 1602: rewriting startup-config from terminal

How do I rewrite startup-config on a Cisco 1602 router without affecting the running-config? Outgoing connections from the router (scp, http) are not allowed. I'm not connected to the serial port, ...
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0answers
61 views

Need help troubleshooting QuickVPN hang

have QuickVPN 1.4.0.5 on XP Pro SP3 and am trying to connect to a RVS4000 using its public IP address. QuickVPN gets to "Connecting..." and hangs. The context menu on the systray icon won't come ...
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1answer
3k views

Cisco ASA 5505 - NAT or Port Forward for SIP / VoIP ver 8.4

I just had an NEC PBX installed that lets me use SIP trunks for VoIP services, My gateway is a Cisco ASA 5505 running 8.4 and I only have one public/static IP Addresses. So far, my trunks are ...
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0answers
37 views

Cisco 3800 - Crypto map gone wrong

I've noticed a very strange issue on our Cisco3800 router. The router is hosting multiple Site to site VPN connections. Everything was working fine for several months. No changes were made. All of a ...
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0answers
23 views

On a Cisco MDS, when decomissioning a switch, how do I change the “seed” switch?

How do I change the seed switch of an ISL? I'm decommissioning an old switch in our network.
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1answer
452 views

Cisco IPSEC VPN Slow Speeds

We have a site to site IPSEC VPN, both endpoints are Cisco PIX 515e's. The links at both end are 100mb, however speeds over the VPN (logged using jperf) are at most 4mb. Obviously this represents a ...
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2answers
72 views

Cisco IPSec Hardware Requirements

In order to use IPSec on 2811 and 2651XM Cisco routers, does one need any particular hardware module(s) or just the appropriate software?
1
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1answer
53 views

How can we better pinpoint instability issues on our network?

We have a medium-sized network of 600 users, all on Cisco switches. Where the users are allowed to plug in routers, etc. on the endpoints, so that they can use wireless and/or multiple devices in ...
0
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1answer
228 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. ...
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2answers
88 views

How Can You Tell If IPSec Is Installed on Cisco

How can I tell if my Cisco router has IPSec installed? I went into configuration mode to see about setting up a crypto policy, but the 'crypto' keyword isn't available. Is this an indication that it ...
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1answer
791 views

password required, but none set

I'm configuring a stack of new Cayalyst 2960-X Series switches, and I'm struggling with the following warning: password required, but none set I configured the switch to authenticate against our ...
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1answer
93 views

Cisco IOS, restrict IP addresses per ethernet port #

I am configuring a Cisco 881, and am interested in restricting individual ports on the LAN (FastEthernet 0-3). I would like to be able to limit the IP addresses that someone can use based on which ...
1
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1answer
293 views

Collision errors reported by Cisco router interface

I have a Cisco 3825 with redundant upstream connections to the datacenter border router. I noticed that there are a large number of "collisions" on the two interfaces. I've read elsewhere that that ...
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0answers
32 views

Find a VPN Name on a Cisco ASA box given a remote IP address

I have a Cisco ASA box with multiple site-to-site VPNs defined. Is there a way to automate finding the VPN name based on a given remote IP address?
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2answers
190 views

Sharing Cisco VPN connection with network peers

We have a Windows Seven host with Cisco VPN Client access configured. We want to share this connection with some linux machines. We tried sharing the Lan connection (GUI option), then adding the ...
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1answer
60 views

Will a Cisco WS-X4548-GB-RJ45 switch module fit in a 3825 router chassis

I currently have a NME-XD-48ES-2S-P 10/100 switch module in my 3825 router and am looking to upgrade it to a 10/100/1000 switch. I found a pretty good deal on the WS-X4548-GB-RJ45 switch module, but ...
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2answers
340 views

How to limit telnet access to only local network users in Cisco [closed]

I need to make so that my telnet service is only reachable by local users, not by anyone from outside in Cisco Packet tracer. Any suggestions please? http://i.imgur.com/RfoNjDz.png
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votes
1answer
63 views

IPsec VPN Server behind Cisco ASA (Transparent mode)

I've a Cisco ASA 5510 with transparent mode, and I'm going to setup a IPsec VPN(Openswan) in a internal linux server(with Public IP). This server has 2 NIC, 1 public IP, and 1 internal IP. I've ...
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0answers
170 views

Cisco ASA Allow ASDM from outside

My Cisco ASA 5515 is running in transparent mode. And I want to open ASDM for outside. I've already run these command. http server enable http 0.0.0.0 0.0.0.0 outside http 0.0.0.0 0.0.0.0 inside asdm ...
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votes
1answer
37 views

CISCO router GUI management

Is there any simple solution to connect to routers database with GUI? I mean is it even possible to find an application which could do the configuration without the need to push commands? Thank you ...
2
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0answers
65 views

How to fix an aborted firmware upgrade on Cisco SLM2048

There is a Cisco SLM2048 switch and the last firmware upgrade aborted, now the switch doesn't work anymore. I can't access the switch. The only evidence is a blinking system LED. As the switch doesn't ...
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38 views

expect not working well with router banner messages

I'm using expect-lite to communicate with a router. however the router has some customized banner message set and expect doesn't seem to work very well with it. Specifically, when I login in to the ...
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1answer
19 views

Cisco Router: Disable RIPng Process?

I have started too many RIPng processes. I want to disable a few. I start them via ipv6 rip NAME enable I tried: ipv6 rip NAME disable no ipv6 rip NAME enable No idea, I didn't find anything on ...
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1answer
66 views

Cisco ASA 5505: Created a faulty NAT rule. Can't reach the ASA

I was trying to create a NAT rule to reach my internal web server from inside the LAN. Something must have gone wrong. Now when i try to reach the ASA through https://192.168.1.1 the response is from ...
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2answers
183 views

Cisco ASA 5505: Reach outside DNS address from inside

We use a Cisco ASA 5505 at our company. We have a dns A record (home.company.com) pointing to the external IP. In the ASA 5505 the http-port (80) is forwarded to an inside web server. No problem ...
1
vote
1answer
32 views

Increase dialup connection speeds

I'm currently manage a p2p dialup network like this: client computer==(ethernet)router Cisco 2500==(async port)modems----pstn----modem==dial-in server All things run well except the connection rates ...
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45 views

CISCO IOS Forward (nat) specific IP to other IP and Port

I've a customer that has a CISCO 7604 as a Border Router.. (Within Network uses Mikrotik, Freeradius, Meraki, etc)... I'm trying (newbie with Cisco) to create a Forward Rule (in Mikrotik is a Nat ...
1
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1answer
249 views

How to enable Cisco switch port mirroring without rebooting?

I have a Cisco WS-C2960S-24TS-S switch and would like enable a port mirror for network analyzer (such as Snort). I could not see any options in the GUI interface. Is it possible, and how do I enable ...
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39 views

Cisco 7921 Authentication troubles

hello I'm working with Call Manager 8.5.1.10000-26 and several Cisco ip phones a 7921 and 7965 I'm having trouble with authorization on the 7921. I wish to invoke a CGI/Execute on the phone . The ...
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1answer
52 views

Can I quickly disable access point radios in one building through Cisco Prime Infrastructure or wism-2 interface

We are hosting a robotics competition and they require that all of our wireless AP's be disabled for the weekend. I am wondering if there is a way to do this from our management software. Added ...
2
votes
1answer
77 views

cisco ios - syslog version

I am writing small article on Syslog and I was wondering, if there is any resource that tells me what version of Syslog is supported in what ios version? By Syslog version I mean rfc 3164/rfc ...
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2answers
58 views

How do you save the configuration of a Cisco switch?

I have a Cisco 2960s switch with 24-port 10/100/1000 Ethernet Switch with PoE, and I have set it up correctly (I think). I can't work out how to save the setting I have made because every time I ...
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2answers
57 views

How to connect more than one telnet session to Cisco router ( Port Com10 )?

I am working on connecting more than one telnet session to Cisco Router. I was unsuccessful till now and decided to post it for getting any valuable directions and info. Thanks
2
votes
1answer
151 views

Debug: Cisco VPN Router runs 100% CPU

I've turned logging on and all I am currently getting are Debug/Kernel logs. Nothing above debug. This was also during offsite hours when hardly any traffic was going on. I have also upgraded to the ...
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36 views

simple subnetting, regarding vpn

i am using 2 cisco rv180 to build up a ipsec tunnel. thats working. but i cant get any packets trough the tunnel. first i was using: local: 10.0.0.X 255.0.0.0 remote 10.0.1.x 255.0.0.0 but 0 ...
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votes
2answers
155 views

VPNs and NetBIOS

I have a Cisco RV180 VPN Firewall Router and I have QuickVPN and PPTP working. However, I am not able to get NetBIOS working so that I can access everything via NAMES or get the systems to show up ...
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83 views

Site to Site to Site VPN

Just wondering if this is possible, we have a leased cisco 2911 (That I do not have access to) at that is set up with a site to site VPN to tie into a third party's Active Directory server. Our other ...
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0answers
25 views

Cisco Unity — List mailbox size for all users

Cisco Unity 8.6.1 Is there a report or command I can run to show me the mailbox sizes of all users? The 'Users Report', 'User Message Activity Report', and 'Mailbox Store Report' don't show me the ...
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2answers
70 views

Cisco 851W - recovering from corrupt configuration

While learning how to use my Cisco 851W router, I downloaded a configuration script with preconfigured settings. I ran this from the router and now I can no longer boot up and get to a command prompt. ...