Cisco Switching/Routing :: Setup SNMP V3 On 4948E Switch?

Sep 3, 2012

I am trying to setup SNMP v3 on a 4948E switch here is what I have done so far:
 
snmp-server location "location"
snmp-server contact IT Admins
snmp-server group SNMPgrp v3 priv read SNMP-ro write SNMP-rw access 80
snmp-server user snmp_user SNMPgrp v3 auth sha xxxxxxxxx priv aes 128 xxxxxxxx access 80
 
What else am I missing and how can I confirm that it is configured correctly?

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Cisco Switching/Routing :: 4948E - Configure Switch Gigabit Port

Sep 11, 2012

Trying to configure the Cisco 4948e switch gigabit ethernet port with "switch port trunk encapsulation dot1q", but didn't get the option. Please find below the options got after "swith port trunk"............
 
SW(config-if)#switch port trunk ?
  allowed       Set allowed V LAN characteristics when interface is in trunking mode
  native         Set trunking native characteristics when interface is in trunking mode
  pruning       Set pruning V LAN characteristics when interface is in trunking mode
 
SW(config-if)#switch port trunk. Please find below the version of the SW............ 
 
SW#sh ver
Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500e-LANBASE-M), Versi
on 12.2(54)SG1, RELEASE SOFTWARE (fc1)
Technical Support: {URL} 
ROM: 12.2(44r)SG11
Hobgoblin Revision 21, Fortooine Revision 1.22
[code]...
 
So, whether the command is not supporting on this Cisco switch ? But we have Cisco 4948 Cisco sw where that command is working fine.

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Cisco :: L3 4948E-E/4948E-S Switch With ASA Configuration?

Dec 5, 2012

I have been asked to look at designing a network internally. I have no control of the upstream network besides requesting changes.Essentially I'm confused as to the best way to approach configuring the following and wondered if you could share any experiences. It's stretching the limits of a CCNA IMHO, although I understand a lot about networking this is one area where I'm a little sketchy.

Kit list:

4948-E-S or E-E switches.
Cisco ASA 5545 firewalls
Cisco ASA 5520 firewall
& Multiple L2 switches

- I have 3 subnets in total, a /29 for routing and two larger subnets routed to the /29

What I'm trying to do:

1) Have some hosts protected by the ASA 5545 firewalls, probably in routed mode (that's the confusing part). I cannot use NAT so the inside interface/VLAN would need public IP's.

2) Have some hosts not protected by the ASA, therefore straight out onto the public Internet with no firewall whatsoever, they connect directly to the L3 or to the L3 via a L2 switch.

3) Have the ASA 5520 take an IP from the public (non-protected range), as this will be a VPN endpoint too and will also need to have NAT enabled. This should be easy as it just takes an IP from a public subnet, the ASA 5545's are the tricky part as they cannot use NAT at all. I've also been advised not to use Transparent mode either.

4) L3 switches are essentially external switches, doing the routing for our subnets, before upstream.

5) Upstream provider provides gateway with HSRP, we're looking at using HSRP and a routing protocol on our side over two 4948 switches. Any recommendations on this?

6) Further to point 5, we do not currently have any ability to do BGP or anything. That would be done by a separate team, upstream.

Note: I've also got to justify the use of each IP to the network management team, they are quite stingy so I have to be careful that I don't waste too many IP's for core network. So what I'm thinking is I have to create subnetworks of my main subnets to break them up into smaller pieces, and then add some onto the inside interface of the ASA and others will be on the L3 switch. Then of course route the networks to the ASA outside IP. Saying that, I'm not clear if I should create a /29 or /30 to route to the outside of the ASA or grab one from the larger subnet as it were? The final outcome is that we can connect a machine directly to the Internet or behind a firewall, depending on the requirements for that individual device. All devices will have public IPs.

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Cisco Switching/Routing :: Get MAC Address From Switch Ports With SNMP V3?

Feb 1, 2013

I have been reading the postings on this site trying to retrieve the MAC address for the client devices (computers, printers) attached to our switches.  We have approximately 500 switches and I need to map the mac address to the switch.  It appears the OID information is for SNMP v2.  We are restricted to using only SNMP v3.  I have tried using the Cisco SNMP Object Navigator without any success. 

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Cisco Switching/Routing :: 4948E DNS Resolution Not Working Using MgmtVrf

Jan 30, 2013

Using a 4948E switch with FastEthernet1 as the management interface which uses the VRF mgmtVrf. I cannot get DNS resolution to work for some reason.
 
I am using code enterprise 15.1-2.SG and here are the relevant config snippets:
 
ip domain-lookup source-interface FastEthernet1
ip domain-name domain.com
ip name-server 4.2.2.1

[Code].....

I read online there are some commands in a different code that support specifying the VRF along with the name servers, but I don't have those options. All I can do is set the source-interface on the domain-lookup command.

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Cisco Switching/Routing :: 4948E / EIGRP Implementation With GLBP

Sep 4, 2012

I'm in the process to install two 4948E switches.  I will be configuring GLBP and wanted to get some guidelines on configuring GLBP and EIGRP:
 
- First question is like HSRP I'm configuring it on both swithches like this:
 
Switch 1:
interface vlan 5
ip address 10.1.5.249 255.255.255.0
glbp 5 ip 10.1.5.1
glbp 5 priority 110
glbp 5 preempt
glbp 5 authentication md5 key-string xxxxxx

[code]....
 
- Second question is about EIGRP, when I configure EIGRP on the main switch that is AVG with the following commands, will I also have to run the same commands on the second 4948 E too?
 
router eigrp 10
network 10.1.5.0 255.255.255.0

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Cisco Switching/Routing :: Catalyst 4948E 10G Block Or Non-blocks

Jan 14, 2012

I want to understand - if 10G ports of 4948E (4 x 10Gb) they are block or non-blocks? I want to connect this switches with 20 GB (lag) to my BB switches and i need to prepare my infrastructure to 17.5GB troughput of video traffic.

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Cisco Switching/Routing :: 4948e - Data Sheet Is Not Supported

Feb 22, 2012

Cisco c4948e switch  log is showing :
 
COMPACTFLASHNOTREADY: Compact flash is not ready
Feb 24 00:28:22.338 UTC: %C4K_FLASH-4-COMPACTFLASHNOTREADY: Compact flash is not ready
COMPACTFLASHNOTREADY: Compact flash is not readyFeb 24 00:28:22.338 UTC: %C4K_FLASH-4-COMPACTFLASHNOTREADY: Compact flash is not ready
 
Checked the data sheet and is not supported. Why we get this log from the switch? is it cosmetic?

AME: "Linecard(slot 1)", DESCR: "10/100/1000BaseT (RJ45), 10GE (SFP+) Supervisor with 48 10/100/1000BASET ports and 4 10GE SFP+ port"PID: WS-C4948E         , VID: V01  , SN: CAT1425S0NZ
NAME: "TenGigabitEthernet1/49", DESCR: "SFP-10Gbase-SR"PID: SFP-10G-SR        , VID: V02  , SN: AGD132134ER
NAME: "TenGigabitEthernet1/50", DESCR: "1000BaseLH"PID: Unspecified       , VID:      , SN: FNS141203YF
[code]...

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Cisco Switching/Routing :: 2960 - Enable Snmp For Switch Port

Dec 18, 2011

i want use CACTI for monitor my bandwidth so i have a question how can i enable snmp for a switch port ? or i shoudl just enable snmp from configuratiopn terminal and then in CACTI i will choose which port will be monitor? can i do something that CACTI connect to my switch with a encryption key ? i have cisco 2960 48 port switch

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Cisco Switching/Routing :: 3750 Switch - SNMP Engine Attempted To Lock Semaphore

Aug 8, 2012

I am having a lab switch. Recently I am getting "%SCHED-3-SEMLOCKED: SNMP ENGINE attempted to lock a semaphore, already locked by itself" message and the switch has started to hang a little bit. I just want to know what this log means and how to trouble shoot.
 
I'm using C3750, version 12.2(25)SEE3

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Cisco Switching/Routing :: 2960 / SG 300 Switch - VoIP Setup - Asymmetric Routing Not Working

May 21, 2013

I have a Cisco SG 300-20 as the core switch, layer 3. It is 192.168.4.6 on VLAN1 and 192.168.5.1 for VLAN2 (VOIP). All the ports are set in trunk mode. DHCP relay is setup on this switch.
 
The phones connected into a layer 2, Catalyst 2960-S switch. All ports are set in trunk mode. Default gateway on it is set to 192.168.5.1.
 
DHCP for both VLANs is provided by a Windows Server 2008 R2 server (the relay IP 192.168.4.15).
 
There is also an ASA 5510 in the mix which is 192.168.4.1. It has a route added to it for the 192.168.5.0 network to go to the SG 300 (192.168.5.1).
 
Just the two switches can ping each other on the 192.168.5.x network when I "add vlan 2" to the trunk port that is connected between the SG 300 and the 2960. The phones don't get DHCP on the 2960 switch. And I cannot ping 192.168.5.x from the ASA or anything else on the 192.168.4.x network.
 
After a bit of reading on intra-vlan routing for the SG 300 switch, I am thinking the SG 300 has to be the "center" of things so I need to make it 192.168.4.1 to be the gateway for both VLANs and change the ASA to 192.168.4.2 for VLAN1, etc. And I really can't do asymmetric routing with this switch.

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Cisco Switching/Routing :: How To Setup SPAN On 4900m Switch

Feb 12, 2013

I currently have IOS image cat4500e-entservices-mz.122-53.SG5.bin.  According to my research it appears SPAN is supported on this OS.  However, after looking at procedure notes using websites like here:

[url]... I cannot find and obviously not figure out how to use the SPAN  command.  My main objective is to simply setup a port mirror on one of my TenGigabitEthnet interfaces and from what I read SPAN is the best way to setup a tap interface on a cisco switch.

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Cisco Switching/Routing :: 3750 - Setup A Switch Port For 2 Vlans

Nov 8, 2011

I'm trying to setup a port on a catalyst 3750 so it will pass traffic for 2 vlans. It connects to a (watchguard) firewall which I've configured with a primary IP (for vlan 27) and a secondary IP (for vlan 29).
 
However I can't seem to find the correct commands to enter on the cisco switch port (I've tried a variety).
 
FYI the current configuration is...
interface FastEthernet1/0/38
description ## Connection to WG vlan27 and vlan 29 ##
switchport trunk encapsulation dot1q

[Code].....

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Cisco Switching/Routing :: Setup Same Console Password In 12 Switch 2950

Nov 3, 2011

My requirement is that I want to set same console  password in 12 switch instantly...
 
All the 12 switch are connected to a cisco 6500 L3 switch..
 
So how can i do that.. i have cisco acs 4.1...
 
can i do that by cisco acs 4.1 if not tell me an software or command ...

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Cisco Switching/Routing :: Catalyst 3550 Switch - Dynamic QoS Setup

Mar 28, 2012

I live in a condo building that uses 3 Cisco Catalyst 3550 switches connected to a Comcast router with 100 Mbps download. Currently we regulate bandwidth by providing each user with 3 Mbps download. Even if only two people are active they still only get 3 Mbps download. I would like to set it up so if two people are using they each get 50 Mbps; a sort of 'dynamic qos. Is this possible with these switches? Would we have to purchase a Cisco router in order to provide this feature?

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Cisco Switching/Routing :: Nexus 5548 Redundant Switch Setup?

Oct 8, 2012

Current our environment is the following:

Core1 ---- Core2
     |            |
      Nexus5k
          | |
N2k, N2k, N2k (FEX)
          ||
Servers, hosts, etc..
 
We would like to add another Nexus5k to this topology. However, it has to be a zero downtime infrastructure add-on. When setting up the keep-alive, peer-link, vPC and vdc domain, will there be any upset in network traffic on the current N5k?Also, are the Nexus5k configurations synchronized or are they independent from one another? Before setting up the new 5k, should i configure it to teh 6509's, and vPC's to the Nexus2k's before setting up peer-link?

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Cisco Switching/Routing :: Setup Of Firewall In Between 1841 Router And Switch

May 26, 2013

We have a setup of a firewall in between my Cisco 1841 router and Switch.
 
Cisco Router --> Meraki Firewall--> Switch
 
Client VPN is configured on the Meraki Firewall but then for the outside users to client vpn in to the network, I have to port forward or open the ports 500 and 4500 to the IP address of the Meraki Firewall 192.168.1.90. [code]

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Cisco Switching/Routing :: Setup SG300-20 As Core And SF100-48 As Distribution Switch

Oct 6, 2012

To setup SG300-20 as CORE switch and SF100-48 as Distribution switch.SG300-20 will have 2 VLAN(DATA and VOICE)
 
-192.168.14.1/24 DATA
-172.168.0.1/24 VOICE
 
SF100-48 will also have 2 VLAN(DATA and VOICE)
 
-192.168.14.1/24 Desktop/Laptops
-172.168.0.1/24 IP phones
 
Problem is when I tried to assign IP to any VLAN's the switch will just hang and loose my connection the light will stop blinking it will steady and i unable to access the switch until i turn off again?

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Cisco Switching/Routing :: Catalyst 3560X-24T-S - Setup DHCP Servers On Layer 3 Switch?

Apr 1, 2012

Do you have the ability to setup DHCP servers on this layer 3 switch? I know I can with my old 3550 switch. Want to upgrade and make sure this model supports setting up dhcp servers on it.

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Cisco Switching/Routing :: 1700 - Setup For Connecting Router AUX Port To Switch Console Port

Feb 26, 2012

I was looking for a way to connect an AUX port from a 1700 router to a 6500 switch module console port, to see the output of the Switch's on the 1700 router, in case there is a network downtime, I could see what's going on in the switch, what cable should I use ? Also, is  there is any kind of documentation for this type of config what have I seen is very few info.

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Cisco Switching/Routing :: SG200-50 - Does It Have Support For SNMP?

Jul 4, 2012

Does  Cisco SG200-50 50 port gigabit smart switch have support for SNMP ? I have updated the firmware and still can not find any option for snmp.Sent from Cisco Technical Support iPad App.

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Cisco Switching/Routing :: 6509 - VSS SNMP Monitoring

Oct 21, 2012

I have two 6509E's configured with VSS.  In this configuration, is it possible to monitor the CPU and memory of each switch independently using SNMP?                 

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Cisco Switching/Routing :: 4507- SNMP String Is Not Validating

Nov 14, 2011

For some unknown reason our NMS cannot validate SNMP string configured on catalyst switch 4507. SNMP version is 2c
 
snmp-server community Cisco RO
snmp-server community Cisco RW
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps entity
snmp-server enable traps envmon fan shutdown supply temperature status
snmp-server enable traps config
snmp-server enable traps hsrp
snmp-server enable traps syslog
 
There is Reach ability between NMS server and switch but snmp string is not validating. 

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Cisco Switching/Routing :: Get Snmp OID For Polling In / Out Utilization For 1900

Apr 29, 2013

How to get the Snmp OID for polling the in and out utilization for the CIsco 1900 Series Router interfaces.

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Cisco Switching/Routing :: 5548 Nexus Snmp Community

Nov 20, 2011

I am using cisco Nexus5548 and trying to enter a snmp community, but it doesn't accept it. I enter a community name that is less than 32 characters, with symbols, numbers and letters.

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Cisco Switching/Routing :: SNMP Trap For Syslog In Nexus 5K

Mar 30, 2013

how to enable snmp traps for syslog message in Cisco Nexus platform ?
 
Mean what would be equivalent CLI for the below
 
"snmp-server enable traps syslog"

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Cisco Switching/Routing :: 4507 - SNMP Configuration For Mac Flapping?

Mar 5, 2013

Would like to ask whats the correct snmp config so that it will send to our snmp server when a mac flapping occurs on a cisco switch specifically 4507 switches.

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Cisco Switching/Routing :: 494810ge - Counters Detail By SNMP?

Dec 5, 2012

Ive got a 494810ge switch, and this parameters are important for me:
 
sh int gi 1/4 counters detail
  Port                InBytes       InUcastPkts      InMcastPkts       InBcastPkts
Gi1/4       252819467437788      173264735013            10827               760
  Port               OutBytes      OutUcastPkts     OutMcastPkts      OutBcastPkts
Gi1/4        36657317030233      280590958051          5248439           5443194
  Port              InPkts 64        OutPkts 64    InPkts 65-127    OutPkts 65-127
Gi1/4             558420918      205564441592       2627477631       60865368994

[code]....

Some parameters i can get by snmp (InBytes,InUcastPkts,InMcastPkts, and so on from out), but how can i take other parameters? I would like to do it by snmp but i did not find proper oids. Now I making a sheme like this: eem every 90 seconds takes this info and writes it down to file into nvram and then send it by scp to server, where file is processed by monitoring system script. It is not very good, cause cisco system cpu sometimes spikes of this and i dont know a resourse of nvram, how much times can i write to it?

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Cisco Switching/Routing :: Cat3560s SNMP IpRouteTable Is Empty?

Jun 12, 2013

Env: Configured Cat3560's L3 port and vlan port, enable OSPF routing, SNMP server, etc. The routing info can be shown by CLI show ip route. But, using SNMP MIB broswer to read IpRouteTable(OID.1.3.6.1.2.1.4.21.1, MIB-II, RFC1213), nothing returned, seems IpRouteTable is empty.I would like to know:

1. Cat3560 works as L3 switch, if it support SNMP IpRouteTable, RFC1213?

2. Where is the Routing table of SNMP, is there specific routing table OID?

3. All the L3 switch has this behavior, or just Cat3560 works like this?

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Cisco Switching/Routing :: 3750 Username And Password Via SNMP?

Sep 24, 2012

Is there anyway to pull the usernames and passwords from a switch via SNMP or write a new username and password to switch via SNMP.  I have switch that was apparently misconfigured and i am not feeling like driving all the way down there to console in.       

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Cisco Switching/Routing :: SNMP / Does Nexus 5000 Support VRF

Jan 7, 2013

Iam having some issue trying to configure snmp-server context vrf XXX.From some reason even if i put my VRF name i cant see anything about this vrfthis is the command i add:
 
 snmp-server context def vrf datacenter

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Cisco Switching/Routing :: 3750 - Enable SNMP On Switches?

Dec 26, 2011

I want to enable SNMP and track the status/ of the interfaces in switches.
 
We have Two- cat 3750 (L3 switch)  and Nine-cat 2960 (L2)
 
How to configure the SNMP. any Links provides the required info with an example of configuring snmp will be really useful.
 
we have OPEN NMS, SPLUNK, MYSQL monitoring tools.

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Cisco Switching/Routing :: 2960 / 3560 - OID For Reload Via SNMP?

Jul 10, 2012

I would like to test the possibility to reload devices via SNMP for new switches like 2960, 3560 and so on.I know that the command "snmp-server system-shutdown" has to be configured, then I need to send the set query to the device via SNMP.
 
I have found on the net the OID 1.3.6.1.4.1.9.2.9.9.0 but it belongs to an old MIB and doesn't seem to work with new switch models.

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