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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2answers
36 views
How accurate is cisco's “show proc cpu history” compare to snmp's cpu loading?
I'm using snmp to monitor my cisco router's cpu loading, but the number has a large difference with show proc cpu history's output. When sh tells me cpu loading is 7x%, the snmp only gets 2x%. Which ...
0
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0answers
33 views
Stacking throughput on the Cisco SG500-52? [closed]
We are looking for stackable switches at our office and I am currently looking at the Cisco SG500-52. However, I am unable to find numbers regarding its stacked throughput from device-to-device.
I ...
0
votes
1answer
36 views
Cisco asa 5500 series - Logging VPN connections to easily search connection history
We have a fresh requirement to log information to do with vpn connections.
The ultimate goal would be facilitating IT management being able to easily review when someone had been connecting / ...
-2
votes
1answer
46 views
Cisco Switch VLAN vs ACL [closed]
I am trying to create a VLAN in which my PS3 can access a remote PC that feeds it video. I want my PS3 not to be able to communicate to the internet, and be able to move that remote PC into the same ...
1
vote
1answer
59 views
Cisco switch default gateway
I have a Cisco 3550 Switch (with an EMI) image. I seem to be stuck trying to figure out if the switch has a possibility of setting IP addresses (i thought Layer 3 switches could do that). I want to ...
0
votes
1answer
43 views
Static into OSPF Redistribution
I am trying to create static routes which are redistributed as E1 Type 5 External OSPF LSAs. If I check the routing tables on my other connected routers, these redistributed routes show up properly. ...
0
votes
1answer
58 views
What would my over subscription be for my network?
I have 24 racks with 20 servers each connecting to 2 by 48 x 10G switches in each rack (NIC teaming). The switchs then connects to another 2 by 48 x 10G switches in 2 aggregation racks.
What would ...
1
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2answers
62 views
Cisco management VLAN — switchport configuration
Does assigning a switchport to the management interface sacrifice that port? That is to say, do I lose the ability to plug a device into that port and assign it another VLAN?
If I take a brand new ...
2
votes
1answer
88 views
Nagios, Cisco switches, lost packets
I use Nagios to monitor about 30 Cisco 2960 switches (check_snmp_load, check_snmp_int). I only check load and one or two backbone interfaces of every switch.
I get a lot of false positives caused by ...
1
vote
2answers
45 views
How can I tell if Cisco switch is running PVST or PVST+?
On a Cisco 6503 switch, if I run "show spanning-tree summary", it says, "Switch is in pvst mode".
How do I know if this is PVST or PVST+? Would it have specifically said PVST+? Or does it depend on ...
0
votes
1answer
39 views
Cisco route HTTP / HTTPS to proxy server
Given a Cisco router, is it possible to route all HTTP and HTTPS traffic to a proxy server for filtering, and allow the proxy server to send the filtered traffic back?
1
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0answers
25 views
intel MFSYS25 blade server- trunk port configuration
Can any one help me configure the Intel blade MFSYS25 switch module to communicate to Cisco devices through trunk? I tried for many hours, seems it doesn't work! There seems to be no documentation on ...
1
vote
1answer
78 views
Cisco router cannot ping its own up interface
I have been troubleshooting using ping on both 2600 and 3700 series Cisco routers. The ping is done on interfaces that have status of up, line protocol up. On FastEthernet interfaces, if status is up ...
0
votes
1answer
52 views
Programmatically interfacing with Managed switches (Cisco 3750)?
I work at an organisation that has a few thousand computers and around 100 switches. To help with the stock take for the computers I would like to programmatically access the managed switches to find ...
0
votes
1answer
36 views
trouble with cisco wireless lan - netgear switch
i have a couple cisco ap's (air-lap-1141n-a-k9) that are not communicating with the wlc (cisco 2500 series, ver. 7.0.116) through a netgear switch (FS726TP).
originally everything worked as it ...
1
vote
2answers
56 views
ipv6 Unrecognised Command on Cisco 3400
I have two identical Layer 3 switches, running identical Cisco IOS Versions. One of the switches, I can configure with ipv6. The other switch however, tells me "Unrecognized command" when I try any ...
2
votes
1answer
58 views
Asterisk can't make nor receive calls through a T1 PRI interface to a Cisco 2430 router
I have an Asterisk 1.8 phone switch with a Digium T1 card. It runs using 5ESS PRI through our present phone provider without a problem. However, we're contemplating switching to Time Warner's fiber ...
0
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2answers
75 views
Cisco IOS debug commands and packet monitoring
There is a long list of debug commands. Are there any debug (or other IOS) commands which can capture detailed packet or frame (layer 2, 3) data across an interface? I know we have ...
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0answers
62 views
Cisco 2960S Slow HSRP Failover
We are having an issue with our setup that I think is tied to our cisco 2960's
Below is our network setup on a simple level
http://www.gliffy.com/pubdoc/4481292/L.png
Now our switch config for the ...
-2
votes
1answer
77 views
OSPF configuration in packet tracer
assume that I have 4 buildings which all connected to main building and in each building I have privileged subnet ( red circles ). privileged subnet must be able to connect each other, and rest of the ...
0
votes
3answers
54 views
BGP can I specify using the backup link for some network
assuming I connect to two diff ISP and set them up as redundant connections, one with heavier weight than the other. Is it possible for me to say, any route to some guy in Spain should use the slower ...
0
votes
0answers
50 views
Broadcom NetXtreme II GigE Teaming Does Not Use Unique MAC, Causing Collisions
I currently have a new Dell server on my local (inside) network that I have setup to use three of the four nics to create a team. Examples below.
NIC_1 - mac: 000000000001 - ip: n/a
NIC_2 - mac: ...
0
votes
2answers
93 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 ...
2
votes
1answer
65 views
Cisco 6500 vss mode upgrade
This is not my network. I'm trying to understand why my cloud provider insists that they need to take down both routers when performing updates.
From what I understand they have 2 Cisco 6500s ...
0
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0answers
15 views
Cisco 860 router series enabled MAC address filtering & set client count
Using a cisco 860 router, presuming a wireless network has been setup and activated. What commands can be entered to A) enable MAC address filtering, and B) Set the maximum client count
0
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0answers
47 views
VLAN & WiFi & DHCP with Cisco SG200
I'm trying to configure a small business network with one Cisco SG200-26, a Linux server and two TP-Link TL-WA801ND.
I have set up the APs to have two different SSIDs, Public and Staff, and have ...
0
votes
0answers
82 views
MAB and 802.1x Issue - MAB-authenticated device gets dropped
I'm trying to use 802.1x to authenticate clients on my network with dynamic VLAN assignment from RADIUS. We have IP-Phones(powered by PoE) that only supports EAP-MD5, and we would rather use MAB(it ...
1
vote
1answer
103 views
Cisco HSRP with spanning-tree slow failover
I'm having an issue with networking that I can't wrap my head around since I'm not a strong networking guy to get this. From our provider we have 2 drops via HSRP that go into our cisco 2960 switches ...
0
votes
2answers
110 views
How can I connect a VPN and VLAN via a Cisco ASA?
I'm trying to extend a VPN further into an organisation:
At the main location I have a private network (call it 192.168.0.0/24) which is connected via a Cisco ASA 5510 to a Draytek ADSL router. The ...
-1
votes
1answer
93 views
Routing between Vlans on layer 2 switch and Cisco router [closed]
Hi I'm quite new to networking and need some help with a home configuration...
I have an 8 port TP-Link SG3210 layer 2 802.1Q tag capable switch and a Cisco 1801 router.
I set up 3 Vlans on the ...
0
votes
0answers
39 views
Multiple Ports Forwards, Most Working, but Not All?
So I have this ASA5505 setup and pretty much everything works, except a couple key port forwards. Can anybody spot ANY reason why SOME port forwarding would not work?
Specifically I know the 50000 ...
0
votes
3answers
79 views
c1841 unable to recognize HWIC-1T (smart serial) card. any idea?
I have this problem where c1841 router unable to verify HWIC-1T card (with smart serial connector), you have to know that i have other routers with IOS
c1841-ipbasek9-mz.151-4.M5 and ...
0
votes
1answer
42 views
Cisco IP SLA snmp notifications
I have a ruleset on a Cisco IOS router similar to the one below. All works great with regards to the delay on the track however the SNMP bits trigger in the event of a single ICMP failure and not in ...
2
votes
1answer
199 views
Configuring trunk interface in Cisco 3750 switch to allow multiple Vlans connected with Ubuntu servers having a single NIC (sub-interfaced)
I have 3 Ubuntu servers (each having only 1 NIC) for my openstack cluster configuration following the guide of http://docwiki.cisco.com/wiki/Cisco_OpenStack_Edition:_Folsom_Manual_Install
I also have ...
0
votes
3answers
61 views
Cisco ASA active SwitchPort
Does anyone know how to see which switch ports are cabled from CLI or ASDM?
I am configuring a 5505 and the inside has 6 interfaces associated, only one of which is actually actively linked.
I can't ...
0
votes
1answer
36 views
cisco small business 300-10 managed config import fails
Device: cisco small business 300-10 10-Port Gigabit Managed Switch
Firmware: 1.2.7.76
The config installation via webinterface with TFTP or http fails with following message in the console ...
0
votes
1answer
49 views
How Do I Access A PIX External Port-Forward From The Inside Network?
I have a PIX running 8.0(3).
I've got a port-forward to permit external users to hit a server on my inside network set up as so:
static (inside,outside) tcp interface 8080 192.168.168.100 8080 ...
1
vote
2answers
53 views
ping and identify Cisco model without physical access or login?
There are several Cisco devices on my network which I can find with ping or nmap but I have no idea what the type (e.g. switches, routers) or specific model is. Is there some way to find this out ...
1
vote
1answer
96 views
Setting ip helper-address to a broadcast address, bad idea?
Info:
A number of vlans running on a 16 bit subnet
All DHCP servers are on the same subnet (10.1.0.0/16)
All switches and routers are Cisco
If I was to set the ip helper-address in our ...
0
votes
1answer
80 views
IOS Port Forwarding and NAT involving a VPN
We have a Cisco 1921 router running IOS 15.1 at one of our branches which is connected via a L2L IPsec VPN to a ASA5510 running ASA 8.2 at our headquarters.
The network looks something like this:
...
0
votes
3answers
140 views
How to enable serial console on Cisco Catalyst 4948
I recently bought used Cisco Catalyst 4948 and can't configure it : is see no link on all interfaces, serial console works but only output I only can stop autoboot and enter in rommon.
Any hints how ...
1
vote
4answers
155 views
new Catalyst 2950 switch, no console or telnet CLI access
I am connecting a brand-new Catalyst 2950 switch to my LAN. It is on with green lights, and frames successfully go in and out the ports. The switch is on the same LAN has my host PC, and pings are ...
1
vote
0answers
26 views
ASA 5505 base license and Voice vlan [duplicate]
My current setup contains a cisco asa 5505 with two cisco sf300-24p switches, the data and voice vlans have been setup on the switches and I've started to setup the needed vlans on the ASA, but it ...
0
votes
0answers
72 views
How to transfer a config file from a autoconf (CWMP) server (ACS) to a Cisco router?
I use openACS to communicate with routers or other CPE. For the moment, I have Cisco routers such as the 888 model but I'll have to handle other CPE from other trademarks. I'd like to send a config ...
0
votes
3answers
74 views
IOS Nated port forwarding
I have cisco ios router with ios C1900 Software (C1900-UNIVERSALK9-M), Version 15.2(4)M1. And I have setup Nat with port overload (one public IP). And there is a static mapping:
ip nat source static ...
1
vote
3answers
196 views
Cisco 2960 trunking issue
I have a Cisco 2960 running 12.2(58) SE2 with four VLANs configured (10.10.10.0/24 - 10.10.40.0/24) plus one uplink on a 192.168.1.0/24 network. I have enabled ip routing and the VLANs can talk ...
-2
votes
1answer
40 views
cisco static router issue [closed]
I have emulated some routers under GNS. The problem is the following:
The first router has (R1)192.168.1.1 ip address, the second router(R2) has 192.168.1.2 and 192.168.2.1 ip address and the third ...
1
vote
2answers
391 views
GNS3 setup connected to real network. ping failure
I am building a lab environment for CCNA training, using GNS3. The GNS3 network is connected to a real network, let's call it LAN 1.
LAN 1 is not connected to the internet and is completely wired ...
-2
votes
1answer
105 views
Telnet Port 23 Not Responding' [closed]
I have an assignment that requires remote access into some Cisco routers. According to Netlab, it uses TCP port 23.
I'm unable to pass the port test. I'm on Windows 7, I've tried all major ...
0
votes
2answers
70 views
Can I use a software router to filter traffic coming from a Cisco router?
I have the following topology working but i would like to be able to filter the traffic using a software router such as Zentyal.
Current
[INTERNET] === [Cisco 2600] ===[Cisco Switch] === [Machines]
...
