Cisco WAN :: How Many Of 881 Switch Interface Ports Can Be Used As Router Ports

Aug 7, 2011

How many of the 881 switch interface ports can be used as router ports, have used the 877 etc where i can use 2 but need a low cost router that supports 3 for routing. (needs to be physical ports)

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Can A Router Connect To A Switch To Gain Additional Ports

Aug 9, 2012

Can a router connect to a switch to gain additional ports (to both access the internet AND to maintain an internal / home network)?IP line to house, connected to modem, connected to 4-port router, connected to 8-port switch. Now, each of six rooms in my house has one Cat-5e (RJ-45) jack whose run terminates to the switch. In some of these rooms, I need two wired devices (wireless isn't an option for the devices). Can I use the LAN port of a spare, wireless router (to also use as an access point for cell phones, etc) to plug into the jack and increase the number of ports in that room to have a functional LAN and WAN? I have read tons of info on plugging switches into routers to increase the number of ports, but not the other way around. Plus, ripping open walls to expand the network isn't feasible either. My other thought, would be to replace the switch with another (2nd) router, by connecting the 1st and 2nd routers together, and have the runs terminate to the open LAN ports of both routers --= and then expand the ports in those rooms by also using additional, spare wireless routers.

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Cisco Firewall :: ASA 5505 / Use The Ethernet Ports As Pure Physical Layer 3 Ports

Jun 9, 2013

We have an ASA 5505. 5505 comes with two default vlans 1&2 with each of them marked as inside & outside respectively.My query is , if i do not want to use vlans on 5505 and only want to use the Ethernet ports as pure physical layer 3 ports, is it possible?i.e. i want to assign a layer 3 ip address on eth0/0 and eth0/1 and make them as the inside & outside interfaces rather than vlans. is it possible to do away with vlans in 5505 & will it work otherwise?

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Cisco Firewall :: ASA5555-X - Spare Ports Into Access Ports?

May 14, 2013

Is there a way to associate spare firewall ports with another port that is being used..For gi 0/2 is being used currently for my web dmz. Its ip is there a way for me to associate gi 0/3 with the same layer 2 as gi 0/2 ?
In my webdmz I use 2 ACE 4710 proxys in FT mode. I used a layer 2 switch to connect firewall and proxys together.
I would like to eliminate this switch if possible..and connect both 4710's (layer 2) direct to firewall.If I could make gi0/2 - 4 part of the same vlan, then I would be good to go.

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Wireless N Extreme DIR-655 Connecting Switch To Router To Expand Ports

May 18, 2011

I have a Dlink Wireless N Xtreme DIR-655 I have run out of port 4 on it to a switch with a cat 5 patch cable that is 25 ft long It is connected to the Internet port on a Dlink 4 port switch. When i run from that on any of the 4 ports back to my computer ( Win7). I get no internet access but if i connect the cable straight from the router there is no problem. I even attempted to use a older dlink router for the switches and no luck there at all. Any reason the internet would not be broadcasting through the switch.

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Linksys Wireless Router :: Connect 24 Ports Switch With E3000?

Aug 23, 2011

I just bought a e3000 and I have a 24 ports switch. I would like to plug more than 8 do I proced ? I used to have a dlink router and just plug a cat5e from the dlint to the switch ... but it doesn't work with the e3000

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Cisco :: Changing Link Ports To Access Ports In LMS 4.1?

Feb 2, 2012

One of techs accidentally connected two access ports from different switches together.  Since then, LMS is alerting them as being Link ports down.  I tried to default the config and set them to access ports without any success.  what I should do in LMS to recognize them as access ports? 

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D-Link DIR-655 :: Router Only Works With Modem Plugged Into Output Switch Ports

Jan 16, 2012

this router of my girlfriends only works when iplug the dsl modem into the output ports what could possibly cause this. would a firmware upgrade straighten it out...

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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 Firewall :: 5505 - Opening Ports On DHCP Outside ASA Interface

Feb 25, 2011

I am used to setting up access-lists on outside interfaces with ip addresses that are static. I have recently been given a site that is using a client for name to ip address resolution on an outside interface that is dhcp assigned. I created an access-list to open up ports 41794 and 41795 to an engineering application but everytime I try to connect from the outside I get a syn timeout. The application works when inside the lan. Basically I want to allow outside connections from anywhere on the outside to go to ports 41794 and 41795. I am running a Cisco ASA 5505 on version 7.2(4) Below is my conifg. what I may have misconfigured?
: Saved:ASA Version 7.2(4)!names!interface Vlan1 nameif inside security-level 100 ip address!interface Vlan2 nameif outside security-level 0 ip address dhcp setroute!interface Ethernet0/0 switchport access vlan 2!interface


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Using SFP+ Uplink Ports On A Switch?

Mar 19, 2013

I have a question regarding uplink ports on a switch. Specifically the SFP+ variety. Could these uplink ports be used to connect directly to a fileserver? To be more specific, would the uplink port on the HP 3800 Switches connect directly to a file server that has the SFP+ card installed?

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Components Under Routing Or Switch Ports?

May 23, 2011

Basically what is the difference. I'm looking at a breakdown of all the components connected to my switches I noticed half of them about are listing their port all the same as GI1/0/1 (routing port?). Then the rest are all different ports FA1/0/assigned# or FA2/0/assigned# (switch ports?).which are routing or switch ports and why certain ones are under each. It doesnt seem to matter which component it is (computer or printer) because some of each are under routing or switch ports.

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IP Addresses Bound To Switch Ports?

Mar 25, 2012

My university provides one Ethernet port per student in dorm rooms. They assign IP addresses based on which port you connect to and forbid multiple computers connected to the one port using a hub or switch.DHCP leases are 24 hours long, but you can switch out 10 different devices with different MAC addresses and keep getting the same IP. How does this work? Do they just figure that if you're using a hub connecting multiple stations to the one port that they don't care if there's a conflict?

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Cisco WAN :: 2811 - Routing The Switch Ports

Mar 10, 2011

I have a 2811 router with a 9 port switch module and a four port ISDN module.  The ISDN Module is our connection to the outside world.  FE 0/0 and FE 0/1 are connected to separate networks and both route our the ISDN connections.We are getting a new satcom system that consists of a modem, antenna control unit (ACU), and an antenna.  The ACU and the modem communicate accross Ethernet and are generally hooked to a switch.  Anything computer hooked to the switch can simply use the modem IP as it's gateway and be surfing the Internet without much hassle (just need the correct DNS addresses).I'd like the networks behind FE 0/0 and FE 0/1 to be able to route out the satellite modem for their Internet connection -- when the satellite is available.  Is it possible to put two switch ports in a VLAN (one for the modem and one for the ACU), give the VLAN an IP in the same subnet as the modem and ACU, and then tell the router to route traffic out the modem IP address ?

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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 WAN :: Inactive Ports On 4507R-2 Switch?

Nov 14, 2012

I'm having issues getting the ports g3/5 and g4/5 from inactive to notconnect.
I have tried the hw-module uplink select all in the global configuratio, but it's not working, getting a : % Invalid input detected at '^' marker. Message every time.
This what I have:
Power consumed by backplane : 40 Watts
Mod Ports Card Type                              Model              Serial No.
1    48  10/100/1000BaseT (RJ45)                WS-X4548-GB-RJ45   JAE152101QK


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Automatic Disable Bombarded Ports In Hp Switch?

May 15, 2012

im working in company that develop high speed networking equimpnet(Mellanox)we develop 4056GB network cards and switches.we have developer network on HP pro curve switchs, the engineering make tets on servers with the high speed network cards and sometimes the test "go out" from the 4056GB network cards and switches and "boombing" the regular network of 1G in hp swiches.i meen every server are connecting with RJ-45 cable for access to the server and the real work is on th Mellanox switches and network cards but sometimes the test "run away" to the ethernet network and 40G traffic are killing the network.function in HP switches that recognize over booking traffic and automatic disable the bombed port?now we have spening tree and brodcaste limit on every switch but its not enough, the big traffic kill the network until we disable the problematic port and igonre the bombing server.we have hp procurve 5610 layer3 switch and pro curve 2510 switches.

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Disabling Internet Access On Certain Switch Ports But Not Others?

Oct 12, 2011

I have a central cisco SG200 26P switch, with about 20 ports going off to other network switches, and individual computers around the building.I need to keep the LAN functionality of the network, but I need the majority of the computers to not have internet access. But I also need to be able quickly re-enable internet access for a particular computer connected to a particular port if required.

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Connect 1 Laptop And 2 PCs To Switch Via Wired Ports

Mar 16, 2012

I want to connect 1 laptop and 2 pc,s to a switch via wired ports. Laptop has WiFi Internet. I DO NOT want internet going to the PC's. Question is will this set-up work for me. all 3 are windows 7

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Cisco :: 3750 Switch - Connectivity Lost For Some Ports?

Mar 8, 2013

In my 3750 stack switch there are more than 10 L3 vlans currently in use.In that only one vlan for example vlan 11 (we given up link directly to the nodes connected to that ports which is in vlan 11)losing connectivity for sometime and again connectivity restored.Except Vlan 11 all other vlans are working fine. When we troubleshooted the issue some of the ip's able to ping and some not able to ping. checked the interface status of that ports (no crc and input errors) and port is in up status only.we also checked cpu utlilisation ,device uptime, all are no issues found. am sharing my sw basic config and one interface status at the time of issue.But only one port learning more than 50 Mac-Addresses dynamically.and am learning mac address violation in another port which is port security and storm control enabled on that port..Its seems to be any attack or something else????

interface GigabitEthernet1/0/20
--More-- description
switchport access vlan 11
switchport mode access
spanning-tree portfast
Mar 8 05:58:25.848 IST: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 0026.0a18.8218 on port GigabitEthernet1/0/16.
Mar 8 05:59:25.862 IST: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 0026.0a18.8218 on port GigabitEthernet1/0/16.

AT the time of issue interface status:

sh int gi2/0/14
GigabitEthernet2/0/14 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0026.ca46.5c8e (bia 0026.ca46.5c8e)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,[code]......

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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 WAN :: WRV210 Not Work With SMB Series SG 100 16 Ports Switch

Jan 19, 2011

I connect a WRV210 router with Small Business 100 Series Unmanaged Switch SG 100-16 Switch. But the switch is not work with the router.In the port of switch (connect with router), no light. In router, the port is disable.Do I need cross-over ethernet cable connect with them?I tried connect WRV210 directly to computer, that is work. I tried connect WRV210 to other (no name) switch and connect this switch with Cisco Switch 100-16 switch than they are work. why?

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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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Cisco :: LMS 4.2 - How To Find Switch Ports Configured As Trunks

May 12, 2013

I've been tasked with finding all switch ports that are configured as Trunks. We plan to use LMS 4.2 to push (via Netconfig) new interface level commands to all user (non-trunked) ports. From my experience, this poses a problem because we do not know which ports are configured as trunks -vs- user ports.

Using Netconfig is not going to be easy since there is no way to script this. It would be great if I could run a show command on a switch and then have CWSI peform a change based upon the output.In other words, we need a way to run a job based upon the output of a command.

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Cisco Switching/Routing :: Which Sfp Ports In 3560x Switch

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 WAN :: Routing Between Routed Ports On A 3550 Switch

Aug 24, 2011

I have 2 3550's connected across a wireless link. [code] However, from Switch A, I cannot reach this 3550 not route traffic between 2 routed ports?

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Cisco Security :: 3560 Whole Switch Ports Not On Some Port

Mar 10, 2013

I am using 3560 switch senerio is that we have dhcp server on and I want that switch filter mac on whole switch ports not on a some port. Switch only give IP to the mac whcih is in mac table of switch/particular which we enter manually.I have read chapter 62 of port security but it doesnot fulfill my requirements.I am also using 3com 5500Ei switch in which we dont have to bind a mac on every port, we just enter a mac in the switch and it filter itself  by using simple commands.DHCP server is not in our hands, we cant do any things there.

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Cisco Firewall :: Configure ASA 5515 Switch Ports

Nov 25, 2012

I am moving from ASA 5505 to ASA 5515 because we are maxing out the number of connections that the 5505 can handle. The 5515 runs version ASA 8.6(1)2 and ASDM 6.6(1) and the 5505 version is ASA 8.2(5) ASDM 6.4(5). On the 5505 I used e0/0, 0/2, 0/4 and 0/5 as outside port with teh switch ports feature but there is no switch port feature on the 5515. I have tried to set the ports individually to numerous public IP addresses that I have but I get an error that they subnet is already associated with another interface. How do I replicate the same setup on the 5515?

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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


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Cisco WAN :: Automatically Shutdown PoE Ports On 2960 Switch During Night

Sep 12, 2011

I would like to save power by scheduling the PoE switch ports on my switches to shutdown every night and turn on at a specified time during day.

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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.
1. Is it possible to have a connection between PA-GE and a 3560G switch (4 SFP ports)? If yes, what type of cables & connectors are to be used?

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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