Cisco Switching/Routing :: 2600 Switch Ports Don't Even Show Up On Router Config

Jan 10, 2012

My network generally runs older routers (2600 series) with 16 port switch modules (NM-ESW-16).   This has always worked great since I can configure the router and the switch ports on the fly, making changes to either as necessary.  Well I am upgrading to 2811 routers, and we wanted to get gigabit ethernet ports on our switch modules.  I think I made an error when I purchased a few of these switch modules:  NME-16ES-1G.   
 
The first problem, is that the switch ports don't even show up on the router config, I have to establish a session into the switch, (And I can't seem to get back to the router unless I manually switch off power and restart).  I don't like this type of switch module, it's like I'm running a completely separate device, and while having a layer 3 switch is cool, It doesn't let me setup routing protocols so I don't like doing it this way.  I want to go back to using a switch module that simply adds a ton of ports to my router like the NM-ESW-16.  (Note:  The NM-ESW-16 does actually work in the 2811 and would be perfect if it were Gigabit speed.)
 
The seconds problem is that the NME-16ES-1G isn't actually a Gigabit switch.  It has a single gigabit port, but the 16 ports are all Fastethernet, and not gigabitethernet.  So ideally, I am looking for a switch module that I can fully configure from the router interface that has 16 gigabitethernet ports, and works with a 2811. IE I want to do this. [code]

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Cisco Switching/Routing :: 2600 Simple Router On A Stick Config Which Is Providing Dhcp To Customer SSID

Mar 17, 2013

i have a simple router on a stick config which is providing dhcp to a customer SSID.  however i don't want employees to stay on it and eat the band width since its open.  the lease is set to an hour, is there anyway that i could set it so that once your lease expired it can't be renewed for 4 about 8 hours?  I am using a cisco 2600 router in this setup.

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Cisco Switching/Routing :: 2600 - Accessing Servers / Ports From One VLAN To Another

Jan 24, 2013

I’m working with a managed switch that has three V LANs setup on it.  Recently the domain changed and the wireless V LAN can no longer access the internal website.  I found access rules, in the switch that allowed the wireless V LAN to use the DNS server on the private/staff V LAN.   Their DHCP scope is on the switch and DNS is set there.  The Website is also on the V LAN with the DNS server.  This configuration totally cuts out external DNS usage.  It stopped working though.  It is as if when things switched on the Domain the wireless users were denied DNS requests.  The switch was not touched at that time.  I’m looking at it though and it seems that I may have conflicting rules.

The version is 12.2.  I believe its a Catalyst 2600~
DHCP scopes: ip dhcp pool INSIDE    network 192.168.1.0 255.255.255.0    default-router 192.168.1.1    dns-server 192.168.1.6 192.168.1.4    domain-name saline.lib.mi.us
ip dhcp pool WIRELESS
network 172.16.0.0 255.255.255.0    default-router 172.16.0.1    dns-server 192.168.1.6 192.168.1.4

Here is the V LAN Setup:
Interface Vlan1
ip address 192.168.1.1 255.255.255.0
[code]...
 
Here are two access lists that should be allowing the traffic from 172.16.0.0 into the list IPs/Ports.  These do no work.
 
ip access-list extended WIRELESS-PRINT
permit tcp 172.16.0.0 0.0.0.255 host 192.168.1.12 eq 30044
permit tcp 172.16.0.0 0.0.0.255 host 192.168.1.12 eq 21326
permit tcp 172.16.0.0 0.0.0.255 host 192.168.1.12 eq 6987
[code]...
 
During my testing I removed the Deny rule and everything worked. deny   ip 172.16.0.0 0.0.0.255 192.168.1.0 0.0.0.255
 
However, the  “   permit ip any any   “ rule, makes all the port rules pointless because when this rule is in place solo, I can ping and access everything on the 192.168.1.0 network. Is there a way to deny everything, except what I permit?  Because when I remove the ip any any, then they cant even get out.  Perhaps there a better way to say, the wireless users can get out but only get into the sub net over specific ports?  I have a feeling it may have not be thought out entirely when initially created.  However, the big mystery is that it worked before secondary domain controller failed.

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Aug 6, 2012

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Cisco Switching/Routing :: Does 2600 Series Switch Support 802.1x And DHCP Snooping

Feb 14, 2012

does Cisco 2600 series switch support 802.1x and DHCP snooping?

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Cisco Switching/Routing :: QOS Config On 3560 Switch

Jul 22, 2012

I'm in the process of configuring QOS on a 3560 routing switch in a GOLD, SILVER, BRONZE priority type scenario.
 
Firstly, I understand that this config will add a tag of "precedence 5" to a packet if it matches the "ACL_QOS_GOLD_In" access list. Question is does the router see this "precedence 5" tag and then sets the priority, or am I missing something in my config where at present it just sees the "precedence 5" and doesn’t act on it ?
 
Secondly, Since the "precedence 5" tag has already been added to the packets, do downstream routers see this tag and act accordingly or so I need to configure those is well ? [code]

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Cisco WAN :: 2600 Remove Serial T1 Card From Router Config

Jul 23, 2012

I have recently made a WAN change from T1 to fiber and my Cisco 2600 series router no longer needs to connect over the Serial T1 card. The Serial connection also provided a few voice channels for the old phone system that are no longer needed.  I need to keep Main Cisco 2600 router in place because I have many network devices that use it as the gateway instead of my firewall.  I will not require the second subnet for Offsite Cisco 2600 anymore either.  commands that will be required to remove all instances of the Serial connection and Offsite Cisco 2600.  I have included the config of the Main Cisco 2600 below. [code]

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Cisco Switching/Routing :: Config Port Forwarding In 3750 Switch

Nov 6, 2012

I have a 3750 catlyst switch in my network and it is like a distubation switch,And for the nating and dhcp nomadix is using as gateway in the same network. for one of my local PC i need to config the port forwarding in 3750 switch. How to config the port forwarding on 3750 switch,

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Cisco Switching/Routing :: 3750 Lab Switch Control And Config Restore

Nov 16, 2011

I am in the process of setting up an interop lab for some engineers. The enviornment will consist of some 3750's, H3C's and ProCurves. My concern is that the end user will have Priv-Exec access for CLI usage on the 3750's and they can change the "en" password (I hope they don't but it has happened).Is there a way I can "break in" during the boot process to reset the password? The reason I am doing it this way is because I have an Altiris server with rebuild automation scripts in xpect and I would like to automate the process so I do not have to use a manual factory default reset.

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Cisco Switching/Routing :: SF 300-24 Switch Won't Boot After VLAN Config / Reboot

Jul 28, 2012

I was trying to configure an SF 300-24 for use in my home and obviously did something dumb. It was working fine. The f/w was updated and I had configured 2 VLANs. VLAN2 was ports 1-6+GE1 for IPTV streaming and VLAN3 was ports 7-24+GE2 and GE3 for the rest of my LAN. I was plugged into GE4 and was configuring the switch with a laptop. GE4 was the only port still on the default VLAN1. I chaged the default VLAN to VLAN3, which forced a reboot and the switch never came back up. Attached is what I see when I connect to the console port: [code]

I can't access to GUI using it's static IP or it's default IP on any port and the console never reaches the point where I can log in. The System light is flashing green but the boot sequence never progresses past what's in the screen shot. I tried to do a hard reset using the recessed button on the front panel but it does not seem to have any effect, no matter how long I hold it down.

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Mar 9, 2013

I have a WS-CE520-8PC Switch. I have tried a full 30/30/30 reset, factory reset, and I am still unable to access the express setup page. Running Win7 x64 on the host os (have tried windows 2000 and xp)It also wont allow me to access direct managment mode when pressing the admin button for 10 sec.

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Cisco Switching/Routing :: How To Get 3560 Switch To Run From New Config File On Reload

Nov 7, 2011

I uploaded a new config file via TFTP to a 3560 switch.  What are the order of commands to get it to boot from this new config file instead of the file listed in 'sh boot': [code]

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Cisco Switching/Routing :: 3750 Switch Doesn't Show Text

Apr 26, 2013

I am working with 3750 switch.I console the switch and turn it on and it doesn’t show text in hyper terminal with any BAUD (I tried all the speeds).  The hyper terminal works with other switches so the problem is not with the hyper terminal.when I tried to break the password it stuck after I was writing "flash_init" and when I entered or typed text it show only garbage characters. I tried to break the password with all the speeds and it shows garbage output. I tried to turn on the switch and hold control + break and it showed the text only with the speed 115200, but after I left holding and tried to type it showed only garbage again. Also I tried to copy text from the notepad to the hyper terminal.

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May 7, 2013

I am trying to configure interface vlan1 to get an ip address from dhcp by entering the commnad ip address dhcp ios rejects the dhcp portion of my command as not recognised although it is referred to in Cisco manuals.my IOS version is c2950-i6k2l2q4-mz.121-22.EA14.bin.I get the same problem when I try to configure ip http secure-server on the switch. Is this a known bug or whether I have the correct IOS version for these commands?

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Cisco Switching/Routing :: ASA 5505 Upload Config File Into Start-up Config

Apr 17, 2012

If i connected the latop to brand new out of the box ASA 5505 through consloe cable and i have a config file on this laptop from other ASA5505, is there anyway i can upload that config file into startup-config of this new ASA5505 through console cable, without using TFTP or FTP?

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Cisco Switching/Routing :: 3560x High Latency Ping To Switch Itself Show 12ms

Nov 25, 2012

i have a cisco 3560x poe. ny currnet version is 12.2(58)SE2.the cpu process is aboute 30% average.my problem is- ping to the switch itself show me 12ms which is high latency.*note- data between two hosts no this has no latency.i realize the packet go into the cpu itself but, the cpu is not loadedusy. so my question is- is this natural behavior?

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Cisco Switching/Routing :: 3560G 15.0(2)SE - Show Platform Forward Command Crashes Switch?

Dec 5, 2012

I have been working on some Catalyst 3750's running 12.2(55)SE6 and hit an issue with CEF load-balancing over multiple equal-cost paths.  Anyway this issue is now solved but it introduced me to the command 'show platform forward' - this shows you how the forwarding of a packet would be done via hardware cef (as opposed to the command 'sho ip cef exact-route' command that only shows the software cef path).  Anyway I tried the command on a 3560G running 15.0(2)SE and it crashes the switch.  I tried it a couple of times and verified that the MAC & IP addresses were exactly right in the command and each time the switch crashes. I have extracted the relevant bits from the crashinfo and attached them. 

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Cisco Switching/Routing :: SG-300 - Switch With 24 SFP Ports

Nov 9, 2011

I like the SG-300 switches for SMB and I'd like use them in our network. Design is quite simple just 6 SG-300 switches connected to one central switch using SFP ports (using 2 port trunks) so I need 12 SFP ports and this is my question. Could you recomend me switch with more then 12 SFP ports from Cisco for this SMB network ? I don't know all the Cisco product lines and I can't find it.

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Cisco Switching/Routing :: How To Segment The Ports On SF-300 Switch

Jul 13, 2012

The default Gateway and DHCP server is connected to port 1 of the switch.  I have various other devices on the network plugged into other ports on the switch.I want port 1 to communicate with every port on the switch, but don't want the other ports to be able to see eachother unless I specifically allow them to. For example, port 5 should see port 1, and 7, but nothing else.Everything needs to be in the same subnet.  With the older Dlink switches I am used to this feature is called "Port Segmentation" but I see no such option in this switch.   I have been playing with the VLAN settings but so far I have not been able to achieve this.

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Cisco Switching/Routing :: 2960 Switch Ports Using POE?

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 20, 2013

I was viewing the 3560x switch datasheet and i need network module C3KX-NM-10G. I have dark fiber with over 12 km distance to i guess i will be needing SFP EX for single mode.

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Cisco Switching/Routing :: Switch Ports Up And Down SG200-50P?

Feb 19, 2013

My SG200-50P Switch Log appears as follows with Random ports going up and down. I am trying to find out if this links to another problem I'm having with a Client Server software locking up on the client end. The hardware, thin clients and desktops, are working and have checked all sleep and power settings. All items in working order, now I'm wondering about the switch
 
2147483369 2013-Feb-20 15:12:07 Warning %STP-W-PORTSTATUS: gi19: STP status Forwarding
2147483370 2013-Feb-20 15:12:02 Informational %LINK-I-Up: gi19
2147483371 2013-Feb-20 15:12:00 Warning %LINK-W-Down: gi19
2147483377 2013-Feb-20 14:51:31 Informational %LINK-I-Up: gi45
2147483378 2013-Feb-20 14:51:28 Warning %LINK-W-Down: gi45

[code]....

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Cisco Switching/Routing :: Getting A Connection Between PA-GE And 3560G Switch (4 SFP Ports)?

Jan 22, 2012

I've a 7206VXR (NPE-G1) router. I would like to purchase a PA-GE port adaptor where I've to use a GBIC connector.
 
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2. Is there any GigabitEthernet port adaptors / modules for 7206vxr where I can connect RJ45 (cat 5) or SFP modules?

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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 :: 4500 Switch Dead Ports / No Poe

Feb 24, 2013

I have a Cisco 4500. Recently some of the ports seem to have "died"/ will not supply Poe to phones. Some work for data only. Other do not work at all. The switch has been restarted, this made no difference.

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Cisco Switching/Routing :: 2960 Switch Ports Flapping

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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Cisco Switching/Routing :: WS-C2960S-24TS-L / 4 SFP Ports For A Switch?

Jul 24, 2012

I have a got a requirement where a 24 Port Switch should have 4 SFP's and all 4 should be used at a time, So I've chosen " WS-C2960S-24TS-L"
  
The transeiver should be GLC-LH-SM, so kindly let me no whether I would be able to use all 4 ports at a time or not.

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Cisco Switching/Routing :: 3750 - Show Interface Vlan (ID) Doesn't Show In / Out Traffic Rate

Mar 13, 2013

I have configured a vlan interface on a 3750 switch. there is aprox 4Mb active traffic flowing through the interface, but when I do a "show interface vlan (vlanid)" the output show zero bits in and zero bits out. Its a typical L3 config with one IP on the vllan interface acting as the gateway for the VLAN devices. Is this a normal behaviur ? and if so is there any way to get the traffic in/out stats. The end PC/devices are connected to this switch via an L2 TRUNK and I dont have access to the L2 switch on which the actual devices connect. so cant get the real time stats of those interfaces.

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Cisco Switching/Routing :: Catalyst 3750X-48P Switch Ports Dead

Jan 31, 2012

I work at a hospital and we have 3750X-48P switches in stacks in various locations throughout the hospital.  We have noticed that when an EKG machine is plugged into one of the ports on some of these switches and the EKG machines are set manually to 100/Full, the ports are no longer usable until the switch is restarted.  The switch is configured for auto.  If the EKG machine is set to auto, it will work and not cause problems.  The link on the interface will show up/up and there will be output packets increasing.  However, there will be no inputs on the link and the port is unusable.  Unfortunately, even when the device is removed, the port becomes unusable for any device.  Is there any way to fix this problem without rebooting the switch?

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Cisco Switching/Routing :: 3750x - MAC Address Not Captured On Switch Ports

Feb 29, 2012

In my environment we have 3750x switches running ios 15.0 (1) SE2.  We have port security mac address sticky configured on all our switch ports.  I noticed that we have several interfaces (on different switches) that are up but have not captured the MAC address from the workstation.  Here is one example:
 
interface GigabitEthernet2/0/11
switchport mode access
switchport port-security

[Code].....

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Cisco Switching/Routing :: Is It Normal To Have All Ports 4500 Switch (not Fiber Ones)

Apr 24, 2012

I was checking some things on my Cisco 4500 and spot checking some of the ports. Using CNA it says it is at 10. The web browser to the switch says Full-duplex, 1000Mb/s, link type is auto, media type is 10/100/1000-TX on port 6i/18 The CNA says, so what would cause the difference?

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Jun 5, 2012

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If I have a dual 3750 stacked together,  and I want to configure (8) port LACP, Can I take (4) ports from each switch in the stack and LACP together.

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Cisco Switching/Routing :: 2600 - Cannot Ping Outside Router

Oct 25, 2012

I am connecting a 2600 router to an ISP. Interface 0/0 is connected to the ISP using DHCP. Interface 0/1 is connected to the inside providing DHCP services to the inside. At least it should only be providing DHCP services to the inside. I also have a public static IP that is NAT to a private static IP. Everything is working except the computer on the static IP. From the router I am able to ping inside and out from each interface. I am able to ping both interfaces of the router from the computer on the static IP but I cannot ping outside the router. If I do a debug all I see a reject for the gateway of the static IP but it has “mobile IP” in the text string. Not sure what mobile IP is relating to. Networks are as follows:

0/0 DHCP 10.X.X.X
0/1 192x.x.x
Static 75.X.X.X  
no ip dhcp use vrf connected
ip dhcp excluded-address 192.X.X.1
ip dhcp excluded-address 192.X.X.2
ip dhcp pool CLIENT

[code]...

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