Cisco Switching/Routing :: Enabling SSL-VPN On 2911

Nov 19, 2012

after installation of demo versions of 2900-SEC-TEMP & 2911-2921-SSLVPN-TEMP & rebooting the 2911 router I do not have access SSL commands.Show license indicates that 2900-SEC-TEMP & 2911-2921-SSL-TEMP licenses are active but NOT IN USE.

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Cisco Switching/Routing :: Enabling EHWIC Card Into 2911?

Feb 16, 2012

I have installed a EHWIC-4ESG  card into my 2911 router running IOS Ver 15.1(4)M2.  When I do a show diag, I can see the card, but I get the following line "Could not get card instance pa_bay=0 slot=0."  Am I missing a step, do I have change something, is it not compatible (all that I have read, states that is)

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Cisco Firewall :: Enabling IPS On 2911 Router?

Sep 20, 2012

I enable the IPS  on the 2911 router .  I am using the Basic IPS signatures that are inbulid on the routers . But sill it showing , that no signature is active .
ip ips signature-category
  category all
      retired true 
ip ips signature-category
   category ios_ips basic
      retired false


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Cisco Switching/Routing :: Enabling Gui On 881 Router?

Oct 25, 2011

I have an 881 router here in house and am attempting to enable the gui interface on the router.
I have tried the steps to enable http but have not had any success. Below is the IOS Version and the portion of the show config that reflects the http allow:
ROM: System Bootstrap, Version 12.4(15r)XZ2, RELEASE SOFTWARE (fc1)
Cisco 881 (MPC8300) processor (revision 0x100) with 249856K/12288K bytes of memory.
Processor board ID FTX1249Y16Q


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Cisco Switching/Routing :: Enabling Jumbo On 6509?

Jan 28, 2013

does enabling jumbo frames on the 6509 require a reboot?

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Cisco Switching/Routing :: Enabling Ssh Connection On WS-C2960-24TC-L

Apr 26, 2012

I  have two WS-C2960-24TC-L Switch with Software Ver  12.2(25r)SEE6 with image c2960-lanbase-mz.122-35.SE5.bin and 12.2(25r)SEE1 with image c2960-lanbase-mz.122-25.SEE2.bin currently on it. 
I want to enable SSH connections on  the switches and believe I need to import the cryto image onto the  switch. I would like to upgrade it to new version that can also support ssh connection but not sure which image to download from cisco. The switches are  now live.
System image file is "flash:c2960-lanbase-mz.122-35.SE5/c2960-lanbase-mz.122-35.SE5.bin"
cisco WS-C2960-24TC-L (PowerPC405) processor (revision H0) with 61440K/4088K


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Cisco Switching/Routing :: Enabling Flow-control In 2960s?

Nov 12, 2012

I met a strange problem after enabling flow-control in enviroment,
- 2 cisco 2960s 24ts-l have been created a stack
- IOS is 12.2(58)se2
- all ports have been enabled flowcontrol receive dersied
via show flowcontrol, I can see each Gigabyte Port have been enabled "flowcontrol receive desired" but, when I do the following tests

- connect equallogic ps4000xv to the port 21, I found the status of port is "input flow-control is off"

- connect one server with Broadcom Gigabyte Network adapter, which has been enable TX ON RX ON, or Auto, the status of the port is still  "input flow-control is off"    
I guess, the port status should be ""input flow-control is on". Test them with another port, I got the same result. why?

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Cisco Switching/Routing :: Enabling Jumbo Frame On N7K With FEX Attached

Oct 4, 2012

I have a pair of N7K's in vPC topology with some FEXs attached. I am looking into enabling Jumbo frame on the N7K as well as the FEX. I understand Jumbo frame is enabled globally by default.

My question is I have some interfaces in a port-channel that I need jumbo frame enabled. Do I enable it at the port-channel interface or at the physical interface ? and is the change disruptive to the network ? I am running NX-OS 6.0.2.

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Cisco Switching/Routing :: 6500 QoS Not Enabling Rcv-queue Defaults

Feb 20, 2013

One one of our Cisco 6509s I've globally enabled QoS and set a port to "trust cos". However when I look at the queueing for that interface, I notice that the receive queue thresholds have not changed to the default.
I'm kind of new to QoS so I'm not sure if I'm missing something.
We are using a Cisco 6509 running 12.2(33)SXI3 using the WS-X6724-SFP card. I thought I'd be seeing the default tail-drop thresholds, but instead I still see the defaults as if QoS were not enabled:
Queueing Mode In Rx direction: mode-cos
Receive queues [type = 1q8t]:
Queue Id    Scheduling  Num of thresholds


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Cisco Switching/Routing :: Enabling Rapid-PVST In Catalyst 6513?

Mar 23, 2013

I can not  enable to rapid- protocol in catalyst 6513, does not support for it, only support pvst.
Someone how can i enable to rpvst? You know if is necessary to upgrade IOS, it has
s72033_rp-ENTSERVICESK9_WAN-M - 12.2(18)SXF9 IOS. The cisco software Advisor could not localized the features fot this IOS.

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Cisco Switching/Routing :: Catalyst 2960 Drops Packets After Enabling QoS

Nov 4, 2011

why the QoS deployment causes ports on 2960 switches to drop packets although there is no bandwidth contension? (output bit/second of the interface)packet drops at threshold 1, queue 2 ( queue 3 in config)
We are using Catalyst 2960 switches and are experiencing issues with QoS. After the QoS, we experience a lot of packet drops and it make the network slow. It appears that the slow performance relates to the egress queuing of each port.
Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(50)SE5
switch_06#show inter fa0/1 | in drops|queue|output
input flow-control is off, output flow-control is unsupported
Last input never, output 00:00:01, output hang never


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Cisco Switching/Routing :: Enabling Jumbo Frames On Existing 3560

Mar 1, 2011

I have a pair of Catalyst 3560 GB switches that are trunked with two of the standard ports, and that have trunk ports connecting to a failover pair of PIX 515e's. We're considering adding a pair of cluster database nodes and an iSCSI SAN, both of which would need a dedicated interconnect VLAN that I'd like to employ Jumbo frames on. I don't necessarily need the VLANs to traverse the firewall trunks since they're private interconnects, but I need each host to traverse the switch trunks.
Since it seems I can only enable Jumbo frames on the entire switch (current standard frame size is 1500 and jumbo is also 1500), when I enable it what kind of possible negative impact could this have on my trunked ports as well as my host connections? I've read mixed reviews of users with iSCSI SAN devices seeing terrible performance when enabling jumbo frames so I'm apprehensive about enabling them on an existing network.

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Cisco Switching/Routing :: 4500 - Enabling DHCP Snooping On 1 VLan?

Nov 24, 2011

I got some problem with  enabling dhcp snooping on 4500 (cat4500e-lanbasek9-mz.122-54.SG.bin) the topology is as below: dhcp snooping enabled only on CORE (with interface trusted to dhcp server)the problem is that I put these 2 commands

ip dhcp snooping
ip dhcp snooping vlan 1
but it is not enabled on any vlan
SW-CORE#sh ip dhcp snooping
Switch DHCP snooping is enabled
DHCP snooping is configured on following VLANs:
DHCP snooping is operational on following VLANs:

On B1 if I turn it on there is a "1" in the section " DHCP snooping is configured on following VLANs:" but on core no.As you can see I did put the trusted on the interface in the direction to the dhcp.First I thought it can be a problem with option 82, I've read a lot about the issues with that, but the problem would be explicable if the client did receive IP address, but it does.

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Cisco Switching/Routing :: 3550 - Two MST Instances Enabling Root Guard

Jan 12, 2012

I have 2 3550 12G switches that I use as core fiber switches.  Switch 1 is the primary for 1/2 the V LANs and Switch 2 is the primary for the others using MST with 2 instances (I am not including the default 0 instance).  I am using HSRP to provide redundancy.  So far so good. 

Recently a tenant in my building would like to use their own switch for data but still needs access to a V LAN on mine for voice.  Again not a problem as I can configure a trunk port and give them what they need.  My concern is that if they try to configure STP on their switch can they take down mine.  Are there some preventions that I can put into place, such as root guard, that work with MST?  What happens if they too set up MST can they kill mine?
Switch 1 is the root for 1/2 the v lans and Switch 2 is the backup root.  The scenario is flipped for the other 1/2.

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Cisco Switching/Routing :: Enabling Jumbo Frame Con Catalyst 4500 WS-X4648-RJ45-E

Apr 9, 2013

I want to enable jumbo frame con a Catalyst 4500, specifically in the WS-X4648-RJ45-E card. (running this  IOS version Version 12.2(53)SG1).
For what I checked, this are the only needed commands:
vlan xxx
mtu 9000
interface port 4
mtu 9000
I want to be sure that these are the only needed comands and that they won t generate any disruption.

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Cisco Switching/Routing :: Full Switch Outage After Enabling Jumbo Frames On Nexus 5010

Nov 22, 2011

I attempted to enable jumbo frames on a Nexus 5010 (NX-OS version 4.2(1)N1(1)).  I created the policy map below and lost access to the switch.
policy-map type network-qos jumbo
class type network-qos class-default
mtu 9216
After recovery I see from the logs that all vlans and interface were suspended.  I've attempted to look for reasons for a compatibility issue but I am unable to find what is checked and what could have been incompatible.  The other troubling thing is the adjacent switch suspended its interfaces too but no change was done there. What I need to look out for so that this does not happen again?
2011 Nov 22 23:43:09 phx-ipcg1dwfcma %ETHPORT-3-IF_ERROR_VLANS_SUSPENDED: VLANs 1,10,601 on Interface port-channel1 are being suspen
ded. (Reason: QoSMgr Network QoS configuration incompatible)
2011 Nov 22 23:43:09 phx-ipcg1dwfcma %ETHPORT-5-IF_TRUNK_DOWN: Interface port-channel1, vlan 1,10,601 down
2011 Nov 22 23:43:09 phx-ipcg1dwfcma %ETHPORT-3-IF_ERROR_VLANS_SUSPENDED: VLANs 10 on Interface port-channel508 are being suspended.


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Cisco Switching/Routing :: 2911 With IOS Version Is 15.1 - Routing Table Not Updating

Oct 2, 2012

I am using Cisco 2911 & IOS version is 15.1. My problem is that after some days (e.g. 15-20 days), the routing table suddenly stops updating & then I have to enter the default route again to make it up. I am using Track 1 to track default route here. After primary link goes down, the Track is also going down but after coming the primary link up, the track is not coming up. So, I have to add the default route again to make it up.

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Cisco Switching/Routing :: How To Install New IOS 15.1 On 2911

Dec 12, 2011

i downloaded and transfered the new ios to the 2911, but no install routine started.

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Cisco Switching/Routing :: 2911 SFP Interface Number

Apr 19, 2012

I am configuring my first 2911 using a SFP card but I dont know the interface name for this module.
show inv shows the card..

What is the interface number for this card or if it needs some config before it will recognize the interface?

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Cisco Switching/Routing :: 2911 - Allow Traffic Between Two LAN Interfaces?

Nov 15, 2011

I have a 2911 router. One interface is configured external (WAN) and two interfaces are configured on separate internal private subnets. What is the configuration to allow all traffic in both directions between the two internal subnets?

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Cisco Switching/Routing :: USB Console Into 2911 Router

May 19, 2013

I have installed a cisco 2911 router and the cisco usb console drivers on my pc, win 7 64 bit.however when I use putty and open the com port assigned it just goes blank, I am using the usb port on my laptop to connect and using the cisco usb console cable provided

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Cisco Switching/Routing :: 2911 IP SLA Commands Missing?

Nov 13, 2011

I've got two routers, Cisco 2911's with 15.1(4)M1 on one and 15.0(1)M5 on another.
I'm trying to set up ip sla for vrrp tracking but the commands seem gimped?  I don't even have an option for ip sla <operation number>.  All I've got is ip sla responder/server/key-chain.

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Cisco Switching/Routing :: Redundancy Between One 2911 And Two 2960?

Aug 2, 2012

we are in the planning phase for a network upgrade. We have two C2960 Switches connected via one (L2) Etherchannel (4x1 Gbit/s) which works very well. In the next phase we would like to upgrade our router to an 2911 series which has 3 gb interfaces. and indeed we would like to create an etherchannel as well. our plan is to use 2 of the 2911 to connect to the first 2960 switch and the one left to the other 2960. i think we will achieve some redundancy with this config.

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Cisco Switching/Routing :: 2911 - Dynamic IP From Provider

Feb 19, 2013

connected DSL directly to 2900 series router , but as DSL public IP is not static (dynamic)  its difficult to access Router when out of home,  any other means to access router without static IP

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Cisco Switching/Routing :: No Serial Connections With 2911

May 8, 2011

I have 2  2911 routers that will be connected via fiber with an ethernet Gig handoff to each router. Each router will then be connected to local networks on a second ethernet interface on the router. I have always connected routers via serial connections so this is new to me. Outside of the usual ethernet interface addressing configuration, is there anything else that would need to be configured on the 2 routers?

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Cisco Switching/Routing :: Enabling Port Security On C4507R Shuts Down Port

Aug 13, 2012

I'm trying to enable port security on several 4507R's. When I try to configure a range of ports the switch will randomly put 1 or 2 in err-disable.  It's different every time I apply the config to the same group of ports.  However if I do them one at a time it seems to work.  But I really don't want to configure 6 fully populated switches one port at a time.   We also have a lot of 3750's and they gave me no problem using a port range. [code]

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Cisco Switching/Routing :: 2911 Can Support Ip Service Image

Feb 29, 2012

i want to check if cisco2911-sec/k9 can support IP service image? what PAK(license) can be bought to activate the IP service feature set?

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Cisco Switching/Routing :: 2911 / NAT And Match Detailed Explanation?

Dec 8, 2011

we have bought 2911 router recently has to set up VOIP line seperately for the network we have two two broadband service provider:

1. how can i use 1 line as an active and other line as a failover(when 1 line is down other line should automatically bear the traffic).clear config will be useful. NATTING using MAtch address objects( roughly )

broadband service provider 1: 97.89.X.X  
broadband service provider 2: 10.0.x.x
2. there are only 20 users to set up a voip line now. here we have telecom provider where they should route the traffic to make any international calls( say telecom public ip lan - wan everything is allowed from wan -lan we have to allow only telcom provider IP(

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Cisco Switching/Routing :: Interface Names On 2911 With 9esw

Apr 18, 2012

Need to confirm about 2911 isr, what interface numbers are given to a 9esw when placed in the far left hwic slots (hwic slot 2+3).
I need to build some configs but its going to be a few more weeks before the kit arrives.

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Cisco Switching/Routing :: 2911 / K9 How To Determine If Power Supply Is AC / POE

Mar 12, 2013

I would like to ask if how can we determine by mear physical inspection if the power supply of a CISCO2911/K9 router is AC, POE or DC?  Do we have images of the actual spare power supply?

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Cisco Switching/Routing :: 2911 Router With Base And Security

Feb 12, 2013

We have purchased a number of 2911 routers.We got Base & security license as we wanted to enable encryption. However we probably wont use the security.We are replacing 2811 routers.Unfortunately the 2811 routers have FXS ports with 2 - 4 POTS handsets - I completely forgot about these ports when I was ordering.Now I have VIC3-FXS cards which are ok in the 2911 but unfortunately I cant get them to work.I am missing PVDMs (well adapters anyway), and even if I got them the router wont take any commands relating to voice due to the license.Is is possible to 'rehost' the security and turn it into a UC ?I am new to these 2911 and Licensing.

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Cisco Switching/Routing :: 2911 Static / Reserved IP Based Off Of MAC

Feb 12, 2013

I have a Cisco 2911 router and a Cisco 2960 switch at a remote location.I have a user who will work out of this office a few days out of the week and will need to obtain the same IP address everytime the user visits this office. This office has no file server, no dhcp server. I have the user's MAC address and for now, the user is getting an IP address that is leased for 30 days. I'm trying to find the best way to configure either the router or switch or both so that each time this user connects to this office, that user device will always pull the same IP address and of course no other device will use that IP.
I've did some research in creating a small vlan possibly, and assigning it specifically to the port# that the user's desk is at, but not sure if that's the best way or exactly sure how it'll work. I'm currently studying for my CCNA so this is all new to me and I'm trying to do research and test without obviously causing production issues especially given this is a remote site and I access these devices via putty.  I can however drive to the site if needed for testing, but I'd like to have a good grasp on what method I'll be using that will work before I actually make the trip.

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Cisco Switching/Routing :: Sudden Burst In Bandwidth 2911

Aug 8, 2012

The layout of the equipments are as such,other equipment <--> 2911 Router <--> Ether-Switch/3925 Router <--> 7206 <--> Internet,During certain times at night, the 2911 exhibits cpu load, high packet loss and an increase in bandwidth of at least twice it's normal amount. this results in packet loss in all the other equipment. I am attempting to locate who was demanding such a high burst but so far the graphs display normal rates for all the other equipment.Because the 2911 demands an increase from the 7206, the 7206 is able to accommodate this as it still has balance BUT my other equipment that are connected to the 7206 takes a drop in bandwidth as well. the graph shows that when the 7206 bursts higher, the rest of my other links take a slight drop in bandwidth.Also, the graph from Ether-switch to 2911 indicates the bandwidth hike BUT the graph from 2911 to ether-switch does not display the same thing as due to the cpu load, the data is somehow not captured properly.

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