Cisco Switching/Routing :: 2960 Set Ports To Untagged VLAN XX
Aug 6, 2012
I have two questions for a Cisco 2960 (WS-C2960-24TC-L)
1. I am working to setup a few Cisco 2960 switches for HP iLO access to our servers. We are going to segregate the iLO network (VLAN 40) from the data network (VLAN 10) by using a different VLAN. All of the HP servers will be configured with static addresses. My question is, how do I set all the ports to VLAN 40 so that untagged devices will automatically go onto VLAN 40? I don't want to have to configure the VLAN on each iLO port on the server. I tried to set the port to: "switchport trunk native vlan 40", but that didn't work.
2. Also, how do you access the web GUI for these switches? I get a login box, but putting in the enable password doesn't work. I have the following commands in the config: [code]
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Feb 25, 2013
New to Cisco and want to know if I can segment a port. I have two v lans. I have one internet connection at the opposite end of the building. Can the port the internet is connected to serve both V lans?
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Sep 8, 2012
I need to configure a subinterface eg g0/0.1 and g0/0.2 with a untagged VLAN for each subinterface on a Cisco 2821.
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Mar 14, 2013
Our College uses Ethernet connexion for its students with the IPv4 Address of each machine configured using DHCP (not manually). In order to prevent students from playing certain online videogames some ports are blocked for all machines on the network, but they can be manually untagged (ie for competitive play). The problem occurred when we tried to untag the ports to allow online games on this machine. After the allowed ports were modified, the machine refused to assign an IP adress to itself - no matter how many times we try to renew the DHCP Lease. Restoring the previous set of allowed ports fixes the problem, but doesn't allow for online play.
config: OS X 10.8.2 with nothing fancy. Other machines on the network do no experience this problem.
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Nov 7, 2012
we hava a couple of 2960 switches and we are logging to a syslog server. Ports keep going up and down is it normal severity (error) ?
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Mar 7, 2013
I have 5 VLAN's setup in the sge2010. I have one port (uplink for the network) that I want everyone to see. But have separate VLAN's for different departments as to keep them all separate. Everytime i try and Untag that uplink port, i lose my untag in the original VLAN it was tagged in, and it changes to excluded.
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Feb 5, 2013
I have a statck of 4 2960s switches, with POE powered access points on 2 of them. All of the access points appear to be functioning normally. For some reason, on 3 interfaces connected to access points, I get the following when issuing show interfaces status:
Gi3/0/9 connected: T 7 a-full a-1000 10/100/1000BaseTX
^
My question is regarding the "T" in the status field. I can't find any documentation on this.
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Feb 7, 2012
it is possible to let cat3750 or 2960 ports which only allow machine on network which it use dhcp, not static ip? if so, how to configure it?
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Feb 25, 2013
I have an doubt about some port in 2960.He have 2 SFP and 2 Fixed Ethernet. Can I use these 4 ports in the same time? Use 2 Ethernet and the 2 SFP with Fiber?
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Dec 27, 2011
We have a 2960 switch which is connected to the core via a VLAN trunk. We have disabled broadcast port suppression but, the 2960 is shutting is shutting 2 ports down on the network and this looks like excessive braodcast. How and why would the switch start dropping traffic when the default is don't do anything? It had to be rebooted to get the port active again
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May 10, 2013
Disable ports looping Users connect the network cable at two points in the network generating looping. which command to disable two ports of a Cisco 2960 when they are connected at the same time with the same network cable?
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Feb 4, 2013
I have a 2960 switch and every then and now the ports are flapping, while i was on console i saw ports going down and coming up...when the ping to machine ip addresses timed out the port status on switch was still up...no errors collisions seen on sw port. Below is sh int when the port was flapping
[code]...
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May 10, 2012
I've previously used trunkports and vlans between my ASA and accesspoints, connected directly. Now I want to put a 2960S-24PS-L bewteen. Where should i define the vlans (in the switch or in th ASA?) and what ports to put in trunk mode? (the ones on the switch or the one between the switch and the ASA?)
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Feb 9, 2012
We have around a dozen Catalyst 3560 and 2960 switches in a ring topology. We are considering adding storm control to our trunk ports. Up until now we have only used it on edge ports with default values and without error-disable.I am proposing that we also add storm control to trunk ports at a lower level and that we error-disable only the redundant links that make up our loops.
-storm-control broadcast level 25.00 20.00
-storm-control multicast level 2.00 1.00
-storm-control action shutdown [only on redundant links]
In a storm all links will restrict broadcast which should work accessing remote switches, but the redundant links should errdisable and block the redundant path. It is important that the action line is not applied to links that are not redundant as we could isolate parts of the network. Any reason not to use storm control on trunks?
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Oct 17, 2012
I have been experiencing discards and no buffers errors on my 2950 switches. These switches are connected to two core switches 4948 and 3560G. I have noticed previous posts regrading these problems but have been unable to find any cases that were resolved. We are using 12.1(22)EA11 software on our 2950 switches.
Outputs:
flrnet3#SH controllers ethernet-controller gigabitEthernet 0/2
Transmit Receive 22204993 Bytes 904542488 Bytes
[Code]....
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Mar 5, 2012
I have a Cisco 2960 48-port switch. I enter "sh vlan" and it lists all the VLAN's. One of the VLAN's listed is "10" with the name "EPIC". What is the quickest way to find out what ports, if any, are assigned to this VLAN?
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Feb 19, 2013
In our network environment, we have a 2960 switch sitting behind our router. Off of this we have a lot of external connections, like our external DNS, firewall, and VPN concentrators. I've configured a VLAN other than the default, moved everything into it and then shut VLAN 1. In this hardening guide it says that your native VLAN should be something other than the user VLAN, but if I am not using any trunk links, wouldn't I not really have a native VLAN? I attempted to make the link to our firewall a trunk link and then set the native VLAN to something else.
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Jan 21, 2013
As per the attached diagram: How do I configure the 2 ports on the 3560 (Ports 6 & 7) and the connected ports on each of the 2960 switches (Port 25) to provide redundancy.
If the up link from Switch A dies then I need the traffic to flow through the trunk and utilize the up link on Switch B with minimal delay (milliseconds).
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Dec 25, 2012
I have trunk etherchannel ports 47,48 which both have Vlans allowed on trunk 70,71. Everything works pretty fine. Now I am trying to add a new VLAN 72 to these ports.
conf t
interface FastEthernet0/47
switchport trunk allowed vlan add 72
exit
exit
So far so good. But when making the same command for port FastEthernet0/48 my switch stuck.
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Feb 11, 2013
I have 2 hosts, 1 plugged in fa 0/21 in VLAN 101 and another in fa 0/22 in VLAN 101 on our L2 Cisco 2960. If I try and transfer files from either host the gig 0/1 trunk port on the 2960 leading tot he 3750 fa 0/1 port hits 100mb (using a real time bandwidth monitor tool), but why? This VLAN is on the same switch, why does it go one way up the trunk to the L3 3750 switch? The L3 3750 is the VTP server and the 2960 is a client. I would of thought the traffic stays local. The 2 hosts don't even have a gateway set.To sum up the typology the 2960 and 3750 are trunked using a single cable. The 3750 hangs of a ASA firewall using SVIs.Here is whatthe traffic looks like when copying a file between hosts (2gb file).
3750 L3 Switch (VTP Server)
interface FastEthernet1/0/4
description Trunk to Cisco 2960 Gig 0/1
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
[code]....
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Mar 13, 2013
I have 2960 cisco switch. I want to configure private vlan. But it is not getting configured in cisco 2960. Is there any other way to configure that in switch.
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Jun 6, 2013
we have inserted into a network with VTP a Cisco Switch 2960-S, not knowing that had installed IOS LAN lite.Now I discovered that it can handle up to 64 vlan. In the network there are currently configured 62 VLAN: what happens when we exceeded the max number (64) of VLAN for that switch?
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Mar 11, 2013
Using Cisco 2960 series switches (Have 8 . 2 stacks of 4) to replace 6 old switches. 4 old switches had IP ranges of 192.168.6.*** and all new switches have 10.1.*.* addresses. Core switch has 10.1. as well as 192.168 ip addresses but i need to configure one vlan (5?) to route to 192.168 address. PC's on 10. address taking a long time to access 192 range.
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Feb 6, 2012
I have a 2960-S running the lastest software for testing on my bench:
[code]
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 24 WS-C2960-24-S 15.0(1)SE2 C2960-LANLITEK9-M
[/code]
I have set up VLAN 2 on 192.168.2.0/24 with the switch as the DHCP server. The switch is connected to an RV082 router which is at 192.168.1.65/27. Once I figure out what I doing I'll eventually shift that to 192.168.1.0/24 or something similar. So I have my switch acting as the DHCP server for VLAN 2 but I can't figure out how to get it to access the internet.
I found this example to set up the DHCP server:
[code]
###################################
this works to get vlan 2 to serve ips
conf t
[Code].....
The RV082 doesn't support trunks AFIK and I'm pretty much a newb at this stuff. TIA. I guess I should get a real router and I most likely will but I'd like to get this working if possible before taking the next plunge.
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Aug 6, 2012
When did this wonderful feature get introduced? Is it going to moved down to the 3560s/2960s type switches?
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May 21, 2012
I have a Cisco Catalyst 2960 series switch. When I connect another switch or a VMWare Esx server on one of the ports, the port blinks for few seconds and then goes off. When I connect a desktop or laptop or a windows server the ports stay led and I can access resources on the network. However, when connect another switch or a vmware esx server, the port is disabled.
What config in the switch can I check to make sure the ports stay on regardless when I connect a desktop / laptop, switch or vmware server?
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Nov 14, 2011
I have a 2960 that I need to limit the uplink port to 50Mbps for 3 vlans and 350Mbps for another vlan. Would the following config achieve that or is this even possible for the 2960?
class-map match-any VLAN50-51-52
match vlan 50-52
class-map match-any VLAN53
[Code].....
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Jul 5, 2012
I have a 2960 switch connected to another. The I need to verify that vlan0010 on one switch is forwarding tagged traffic between the other switch it is hooked up to through the Gi0/1 port. How do I verify this? I have a server that's multihomed (Broadcom) on the other side an it is supposed to be on this vlan with one of it's network interfaces. We had a pwer outage and now it cannot communicate on this vlan. However, everything else on the vlan can reach all the other nodes accept this server in the front of my building. All the devices in the same room are linked to the same switch which has one port (fa0/17) on vlan0010 and can ping eachother just fine. The server is hooked to port 24 on my server room switch and Gigabit port one goes to a fiber converter all the way to the back. It then gets converted from fiber to cat5e again and links into the switch (2960) in the backroom.
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May 21, 2012
We're going to be switching some of our gear from Foundry to Cisco, and were looking at the WS-C2960S-48TS-L. We currently have 3 different VLAN's, and I wanted to have 1 uplink back to our firewall (ASA 5550) and then let the firewall do the routing between the subnets. I realize that 1 link will carry the traffic twice then, but is that possibly with those switches to have all three vlans assigned to one port and then just let the firewall do the routing between the vlans or would I need to have 3 uplink ports back to the 5550?
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Dec 29, 2011
Setup is like this: Poly com IP phones -> Cisco 2960 switches -> Cisco 2621XM router running 12.28(r). A Windows 2003 server running on HP Proliant DL380 G4 with the correct DHCP scope is configured for the IP phones, also sitting on a Cisco 2960 switch.
A typical port config on the 2960 is:
interface FastEthernet0/1
switchport mode access
switchport voice vlan 60
mls qos trust cos
auto qos voip trust
spanning-tree portfast
spanning-tree bpduguard enable
Relevant section of the config on the 2621XM router:
interface FastEthernet0/0
no ip address
no ip redirects
no ip proxy-arp
ip pim sparse-dense-mode
[Code] .......
This used to work on a Windows 2000 server which sat on different piece of hardware, but stopped immediately after the migration to Windows 2003 server was done. There was no change on the router or switches prior to or after the server migration. I see DHCP server log on the 2003 server giving DHCP NACK because the phones are apparently asking for IP's in the data VLAN.
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Oct 8, 2012
I have 4 cisco 2960 switches to which many users are connected. No vlans are the only default vlan 1 is there. Now I want to make ether channel on switch 1 whcih has 24 fast etherenet ports. Can I make port 1- 8 as one ether channel which are connected to users or i can only make ethere channel of ports that are connectd to other switchs. If I can, how the other switchs will comnicate with the switch ports bundalled in the ether channel in switch 1.
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May 19, 2013
I am unable to connect a Wifi Modem wiith 2960 Switch having VLAN 1,Attached is the network diagram,what configurations i have to modified it,I need to Connect A Wifi Modem on VLAN 1 ,Connectivity is working fine between VLAN 10 and VLAN 1.What should be the next step to Connect Wifi Modem to VLAN 1 so that Users on VLAN 10 should connect to Internet.
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Sep 4, 2012
I have a problem, here are the situation
- 1 Catalyst 3750
- 1 Catalyst 2960
- 4 Finger Print
- 1 HUB
Configuration
- Catalyst 3750
Interface VLAN182
IP Address 10.62.182.254 255.255.255.0
Interface G0/2
Description Finger Print Server
Switchport mode access
[code]....
Here are the problem,If i connect Finger Print Device to port catalyst 2960, some device not sending data to server, but if i connect all Finger Print to HUB and from HUB connect to Catalyst 2960 at port F0/5, All Device(Finger Print) can send data to server...Is there any special configuration in catalyst so all device can direct connect to port catalyst 2960 without HUB?
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