Cisco Switches :: ESW 520 24-Port Switch With POE Not Working?

Oct 16, 2011

We just purchased 8 managed switches POE to swap out our existing in preparation for our new phone system.  We installed them all after configuring with static IP.  Deployed... and all but two work fine. Any tips for troubleshooting why two of them do not work?  There are a couple other switches in the building.   Could it be that a switch "upstream" from the two non-functioning switches is causing an issue?  If so, how do I find out?  When we put back the two "dumb" switches all was fine. 

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Cisco Switches :: ESW 520 8-port PoE Switch Cannot Ping

Jul 20, 2011

I have an ESW 520 8-Port switch with a management ip address of 192.168.10.2 /24 After I reboot it, I can successfully ping it from a pc with an ip of 192.168.10.123 for about 50 consecutive times.After that, I get a "Destination host unreachable" (this icmp message is sent by my pinging pc (192.168.10.123).This obviously seems like a bug.Whenever I reboot it, it goes through the same sequence.

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Cisco Switches :: SLM248P To Replace Router As Switch Is Not Working

May 9, 2012

I am in the process of trying to replace a modem/router,the switch does not work with the new modem/router although if I connect the modem/router directly to my computer it works fine,so its not a router issue.I suspect that the settings need to be changed in the switch to allow the new router to work ?

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Cisco Switches :: SGE 2000 24 Port POE Switch Won't Boot

Sep 16, 2012

I have a sge 2000 24 port POE switch that won't boot, won't communicate on console or TCP/IP, and all of the port lights are lit up green. Holding down the reset button doesn't fix the issue and there aren't any lights illuminated on the left hand side of the switch.

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Cisco Switches :: Mac Filtering On 8-Port SG 200-08 Smart Switch?

Apr 25, 2013

Is this smart switch possible to do Mac Filtering? how to enable mac filtering on this device?

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Cisco Switches :: DHCP Option 82 On SG-300-10 Port Switch

May 5, 2013

I have sample lab    dhcp-client  ------- (vlan62) sg-300 switch  (vlan62) ------ dhcp server
 
When I set on switch :
 
dhcp relay  : enable
option 82 : enable
dhcp server address: ip of dhcp
 
When debug packets from client to server, there is no 82 option in dhcp discover packets. I mirror all traffic to mirror port with wireshark. I can see dhcp packets but without option 82.
 
Firmware version: 1.0.0.27

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Cisco Switches :: Linksys SRW2016 Switch Serial Console Not Working

Jan 5, 2011

I have had the switch for about 2 years and recently moved.  The manual specifies:
 
38400 bps and 8-n-1 serial port settings using DB9F to DB9F cable.
 
I have done this and tried using multiple machines/ports/cables as well as several peices of software (minicom, PuTTy, hyperterminal) and none give me any output from the switch at all.
 
The trouble is that in its original config, it had 1 port locked into its own VLAN for management with port security and an obscure RFC1918 IP address which I cannot recall for the life of me.
 
At this point, I have no access to TCP/IP management so serial console is my last hope and is not working.

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Cisco Switching/Routing :: Stacking 24 And 48 Port 3750X Switches Not Working?

Dec 11, 2012

We purchased a number of 3750X 48 and 24 port switches for the College Campus. Am finally getting around to getting them inserted on the network. Working with a WS-3750X-48PF-S and a WS-3750X-24P-L. Have them stacked with the 10Gb uplink on the 48 port switch. Have not been having fun.In the boot sequence, the switches recognize they are stacked, but as soon as they finish boot, I get the message on the 48 port switch: “Stack Port 1 Switch 1 has changed to state down.” Then “Stack Port 2 Switch1 has changed to state down.” Am noticing that I have a message preceding that: “Major version mismatch with stack neighbor.”The 48 port is running c3750e-universalk9-mz.150-1.SE3, HBOOT 12.2(53r)SE2.The 24 port is running c3750e-unversalk9-mz.122-55.SE3, HBOOT 12.2(53r)SE2Most of our 3750X and older switches are running 122-55 or 122.58 code. IP base or Universal. There is speculation that the problem is the 24 Port is Lan base, as the part number might indicate. (WS-C3750X-24-P-L.... I think that is the part number) and the 48 is IP base. Both switches are Universal, and my understanding is that they don't care about LAN or IP Base until you enable a function that falls in the IP Base domain. Then I have to call Cisco Licensing.For these switches, LAN Base is fine, based on the boot message, I feel the real problem is 122-55 versus 150-1 in the stack. So.. the question is: Do I downgrade the 48 port to match what we have in our environment, and what is on the 24 port switch. Or... Upgrade the 24 port switch to match the 48 port switch and have an installation that is not consistent with our environment? I do have two more edge closets to install with this purchase of 3750X 48 port switches.

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Cisco Switches :: Configure SRW248G4 Switch Through Console Port?

Jun 2, 2013

I want to configure my SRW248G4 switch thru console port. Unfortunately in this switch there is no RJ45 console port input, I can only see cosole port that is look like RS232 input. I bought two standard cisco console cables that have one end with db9 and one with RJ45.

Now I have and idea to put one end of one cable (db9) to switch, and one end (db9) of second cable in my computer (COM input/output)
 
I need to connect two RJ45 together - this is not a problem, I know how to do this. Here is the question :I know how pinout in my computer look like but i can't find pinout of console port in my SRW248G4. There is many pictures in Internet, for many Cisco devices but this isn't working. Maybe in LINKSYS pinout look different ?

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Cisco Switches :: SG 300-52 Port Gigabit Managed Switch - Cannot Telnet Nor SSH?

Nov 16, 2011

We have recently purchased SG 300-52Port Cisco Switch to support our Network but they constantly having some bizarre issues or I assume bugs, i.e. we cannot Telnet nor SSH to the switch now, whereas we were able to SSH before, we have set them up for Remote Log Services to get some syslogs and reports but no report have been generated nor logs,
 
I have done some testing through Wireshark and there are absolutely no reports / logs.We have some real issues with this switch and it’s hard to believe that this is a Cisco Product,
 
SG 300-52 Port Gigabit Managed Switch
Firmware Version (Active Image ) : 1.1.1.8
Firmware Version (Non-active ) : 1.1.0.73
Boot Version : 1.0.0.4

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Routers / Switches :: Plug A 8 Port Switch Directly?

Sep 27, 2011

I have a Modem/Router combo and am trying to plug an 8 port switch directly into it and then have wireless AP's and other hardwired devices plugged into the switch. Normally, when I plug a switch into a router it requires no set up. This one on the other hand, will not work.

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Routers / Switches :: Can Feed Router From A 4 Port Switch

Mar 19, 2011

ISP Cable in Smart box. 4 cat 5 cables from various rooms in house to feed cable ready TV's and one from my computer room. Can I connect all cat 5's to switch that is connected to cable modem located in Smart box and connect Wireless Router to cat 5 in the computer room and expect router to work properly?

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Cisco Switching/Routing :: (no Shutdown) Command Is Not Working In 2970 Switch Port

Apr 9, 2013

a switch port is shutdown, but when i use NO SHUTDOWN command it is working and shows administratively down. like this command does not affect on it. i should enable this port? what can i do btw, port is not in errdisable and portfast is enabled.

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Cisco Switching/Routing :: ME380x Port-channel From One Switch To Two Switches

May 8, 2013

I am trying to configure port-channel from one switch to two switchs, and only one interface of each switches make part of the port channel.Cisco IOS Software, ME380x Software (ME380x-UNIVERSALK9-M), Version 12.2(52)EY4, RELEASE SOFTWARE (fc1) [code]

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Cisco Switches :: Concurrent Voice Calls SF 100D-08 8-Port 10/100 Switch

May 16, 2011

how many concurrent voice call can be conducted at once with the cisco sf 100d-08 8-port 10100 switch?

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Cisco Switches :: Configure SF300 48 Port Switch As DHCP Server?

Aug 23, 2011

How to configure SF300 48port switch as DHCP Server or not.
 
My Configuration as below
 
I have 8 vlan configure in SF300  (SVI with ip address)isit possible to configure dhcp server and how i can apply access-list to restrict with other vlans.

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Cisco Switches :: Get InterVLan Routing To Work On DF300- 24 Port Switch

Jun 2, 2012

I am trying get inter vlan routing to work on a DF 300 - 24 port switch.  I have an existing company network on 192.168.111.0 and want to create a vlan on 192.168.1.1 that can talk to 192.168.111.0.  I have enabled layer 3 routing on the switch via console and also provided the ip routing command. I have the following VLAN's:
 
VLAN1 - Default 192.168.111.0
 VLAN2 - 192.168.1.0
 
I have enabled DNS and provided my two DNS servers 192.168.111.82 & 192.168.111.212.  I have set the VLAN1 interface to 192.168.111.217 and VLAN2 interface to 192.168.1.1.
 
Ports FE1 - FE15 are set to access ports and assigned to VLAN1 (untagged) 
Ports FE16 - FE24 are set to access ports and assigned to VLAN2 (untagged)
 
I have set a default route for the switch to 0.0.0.0 0.0.0.0 192.168.111.254 (Draytek 2600 router). I have connected a computer (A) to VLAN1 port FE3 and a computer (B) to VLAN2 port FE16.   I have set Computer A default gateway to 192.168.111.217 and its IP address to 192.168.111.94.    I have set Computer B default gateway to 192.168.1.1 and IP to 192.168.1.2.   
 
Computer A has access to Mdaemon, file server via network drives but no internet (cannot ping google) and can ping computer B and RDP onto computer B.
 
Computer B can ping computer A and RDP onto computer A but does not have access to the company network i.e MDaemon, file server etc.   It also cannot access the internet.
 
From the console I can ping [URL]and all ip addresses in the company network i.e. 192.168.111.82 (DNS server).  If I scan computer A wirh wireshark the internet starts working weird!
 
Configuration show below:
 
switch7c0a71#show run
vlan database
vlan 2
exit
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________

[code]....

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Cisco Switches :: Configure Port To Connect SG300 To 3com Unmanage Switch?

Apr 1, 2012

I have my network with severals SG300 switches.I have one of them like my core switch working in layer 3 mode. With 2 vlans and vlan interfaces to each vlan.Everything is working ok.But now i have to connect one 3com unmanage switch that have host from vlan 1 and 2. How should i connect this switch to my Cisco sg300 switch?

[code]...

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Cisco WAN :: 6500 Series Switch / Configured Port Channel On Both Switches With 2 Gig Interface

Jan 9, 2012

we have cisco 6500 series switch and configured port channel on both switches with 2 gig interfaces on both switches.
 
When we enable the port channel mode to as desirable to the interfaces on both side and applied the port channel to physical interfaces switch will go down and if we remove on any one side switch will come up. we have enabled globally the following commands. [code]

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Cisco Switches :: ESW 540 8-port Way To Make Device Behave Like Boring In-managed Switch

Mar 18, 2013

I bought an ESW 540 8-port switch, mainly for the POE capability over all 8 ports, so that we can power some SPA50X phones.The concepts of a "managed" switch are challenging for a newbie.Is there a way to make this device behave like a boring "unmanaged" switch ??We have plenty of bandwidth, and don't need to be troubled by QoS and virtual LAN's, or all the security stuff at this time.Making this device work like an unmanaged switch (aka plug-and-pray).

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Cisco Switching/Routing :: Switch Port Auto-state Exclude Command Not Working In 4500

Jun 3, 2013

I have configured a SVI in my 4500 ( Sup 7-E 10GE,,,,,,and,,,,,cat4500e-universalk9.SPA.03.02.00.SG.150-2.SG.bin) switch and it is showing Down Down, because there were no active switch port in the vlan, I added one switch port to this vlan but this port also in the down state, so i added the SWITCH PORT AUTO STATE EXCLUDE command under this port, even after this also the SVI never came up, So i added one systen to the port so both the switch port and the SVI came up...So why SWITCH PORT AUTO STATE EXCLUDE command have no effect in this model of the switch..

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Cisco Switches :: SGE2010 - How To View Table Showing Which MAC Address Is Plugged Into Which Port On Switch

Jul 31, 2011

I volunteer at a school who just purchased two 48 port SGE2010 managed switches.  I am not a big fan of the web gui and was hoping to see the standard Cisco command prompt instead of the menu-type interface.
 
Is there a way to view the MAC table showing which MAC address is plugged into which port on the switch?  I have been fighting with the menu and the gui for a while now and do not see this anywhere.

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Linksys Wireless Router :: E3000 Ethernet Port 4 And Internet Port Not Working

Jul 3, 2012

There is no "blinking light" indication on my E3000 at the Internet (Yellow label) and Ethernet port no 4. I tried plugging in 2 cables at all of the ports. I got the blinking indication at Port 1 through 3. The same cable's have no response at Port 4 and Internet port. As a result my I am not able to connect to the internet.

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Cisco Switches :: SGE2010 Switches / VLANs And A Blocked Port In Spanning-tree?

Aug 20, 2012

I have 2 switch groups.
 
2 SGE2010's with VLAN's defined as 10,20 and 30
 
Vlan 10 is the management VLAN, and it uplinks to our border router.Vlan 20 is the workstation VLAN, and all workstations point to the switch as their default GW? Vlan 30 is the ip phone VLAN, and all phones use this as their gateway.
 
I would like to put a LAG between said switches, we have some servers on the ip phone switch that need to be accessed by the workstation clients, and the single 100mb link through the router is probably not going to be enough.As I understand it, because the switches have different networks on them, a simple lag will not work. I did create a lag, and assign ip addresses to each side, however in that mode, it doesn't appear I can block vlan 10 from transiting the LAG, and with out that block I will end up with a logical loop, and spanning-tree will block one of the uplinks, or the LAG itself.

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Cisco Switching/Routing :: Convert Switch Port To Router Port On 6500

May 8, 2012

On the supervisor card of a cisco 6500 series, according to the following link, [URL] it only has 2 uplink ports on the card. Would I be correct in assuming that I only have those to ports that I can configure IP addresses on?
 
The cisco that is being devlivere is coming with a 48 port switch and 24 port fibre switch. Could I change any of those ports into a router port and configure IP addresses on those?
 
The supervisor card is a ws-sup-720-3b the 48 port switch is a ws-x6748-ge-tx the 24 port fibre switch is ws-x6724-sfp

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Cisco Switches :: Reconfigure Port Mirroring From Port FE17 To FE3 / SF200 Web Interface Crash

Mar 14, 2013

i was able to configure (via SF200 web interface) a port mirroring from port FE17 to FE7.i have supressed this port mirroring.when i try to reconfigure a port mirroring from port FE17 to FE3. The SF200 web interface crash. the SF200 seems to reboot.
 
i have updated the SF200 firmware from V1.1.2.0 to V1.1.2.9.44 when i was able to configure (via SF200 web interface) a port mirroring from port FE17 to FE7.But  after having suppressed this port mirroring again, i was not able to  reconfigure a new port mirroring from port FE1 to FE3 (the SF200 hangs).
 
i have also tried to return to default factory setting but this does not solve the issue.i am working on SF200-24P

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Cisco Switching/Routing :: 3825 ISR - Traffic Route From Switch Port To Router Port

Jun 5, 2013

I'm fairly new to Cisco products am in the process of developing my network knowledge on a deeper level.  I have a 3825 with a HWIC-4ESW and I'm struggling to fully understand how the two "see" each other.  I've setup a V LAN with a layer 3 address on the HWIC and added the switch ports to it.  This seemed to allow devices connected to the switch ports to talk to the built-in router ports.  I thought this was all making sense until i applied an access-list to the router port.  It's a simple ACL i'm just using for testing and the only thing it does is blocks telnet from anywhere.  I know the ACL is setup properly because if I connect a device directly to the router port i cannot telnet to the port.  However, if i connect a device to one of the switch ports, i am able to telnet to the router port successfully. 

It seems that I'm missing something with how traffic flows from the switch port to the router ports and how the two "see" each other. 

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Cisco Switching/Routing :: What Is The Use Of No Switch Port Command In L3 Switch

Dec 28, 2008

what is the use of no switch port command in L3 switch?

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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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Possible To Assign Loop Back Address To Typical Switch Port On 2950 Switch

Jan 16, 2011

is it possible to assign a loopback address to a typical switch port on a 2950 switch? I want to be able to have some devices connected to a switch to test access lists and VLANs.

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RWW And OWS Not Working Since Adding New Switch

Jan 30, 2013

We have upgraded our switch and since then Remote web workplace and owa are not working

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Wireless Switch Not Working?

Jan 17, 2012

My laptop has both wireless and wired connections but i have been operating on wireless. yesterday the red light which shows my wireless connection on has gone out and it will not switch back on so i have reverted to wired. can you tell me why my wireless switch will not switch back on?

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Port Forwarding Not Working

Jul 7, 2012

I am trying to make a server in the game Halo combat evolved for the PC, but i need to forward 3 ports, ports: 80, 2302, and 2303, i did them all, but it still says they are all still closed, when I scan them or they say, its times out.I have a D-Link router.

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