Cisco Switching/Routing :: Router On A Stick 2811 With 3750 - Not Propagating VLANs

Jun 1, 2012

I am trying to configure router on a stick with 2811 and 3750, but I just cannot get it to work - vlans are not getting propagated from 3750 to 2811: 3750:
 
Code...

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Cisco Switching/Routing :: 3750 Configurations For NAT On A Stick

Jul 10, 2012

Has anyone implemented a working Nat on a Stick?I am looking for 3750 configurations for Nat on a stick.Our users need to access the camera monitoring from home as well as in work.We will like to setup the monitoring software with public address (and port) of the cameras, as the users use the same configuration at home and work.DNS will not work for us as the monitoring settings only accept IP.

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Cisco Switching/Routing :: VLAN Information Not Propagating Between Nexus 5K Switches?

Oct 2, 2012

I have 2 NEXUS switches in VPC. When I create/delete a VLAN gets updated in the same switch, but the VLAN information does not get propagated to the neighboring switch. Revision number remains the same even if I modify the VLAN. Had also tried changing the VTP status to transparent mode & reverting it to client mode but no luck.Have double confirmed on the VTP domain names & password. However the same setup in different location which works perfectly fine.

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Cisco Switching/Routing :: 3750 / 2811 - CEF Entry

Sep 25, 2012

We have a site and on that site we have a server which is down form  last two days. However , to manage these devices we are not using any  tools. We are not able to find this server that where it is located and  on which switch it is connected to.
 
I want to know that the timer for mac address is 5 minutes and arp timeout is 4 hours . Is there any way to find out the mac address of the server . I  feel like this can we done with cef ? Is it true or not I  am not sure. I am running 3750 stacks and 2811 routers. 3750 stacks are  working as layer 3 devices. They are also running the pretty new IOS 12.2(53)SE.
 
According to my understanding now a days CEF entry does not expire if we are not using them. They remain in cache as we are running with destination base CEF.

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Cisco Switching/Routing :: Catalyst 3750 Having More Than 128 VLans

Feb 18, 2012

Is is correct that vlan's exceeding 128 runs without spanning-tree.?

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Cisco Switching/Routing :: Multiples VLANs On 3750

Jan 24, 2012

I have a stacked Cisco Catalyst 3750 configuration that currently has one V LAN configured. VLAN 192 - 10.192.0.0/16
 
The Catalyst has an ip on this range of 10.192.0.1. I would like to configured a few more V LAN's to be able to run some more network ranges through this device. Would it be a case of just adding the V LAN's to the master and then configuring an IP for each V LAN within the inter-v lan routing section? Some V LAN's will require access to each other but not all.

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Cisco Switching/Routing :: 3750 - Transparent Firewall Between VLANs

Jun 19, 2012

I have to put an ACL Firewall in front of a public IP range.There's no routing so I want to do it with a transparent layer 2 Firewall. I found this document which descibes exactly that feature I need: [URL]
 
It seems to be a feature introduced in IOS 12.3.
 
My Questions:
 
1.) is it possible use this transparent firewall feature with the 3750 Switch instead of a "normal" IOS-Based router?

2.) I've seen there is no IOS 12.3 for the 3750 but rather 12.2 (currently installed) or 15.0.1. Is this Feature included in 15.0.1?
 
If the feature described above is not available, is there any other way to achieve my goal?

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Cisco Switching/Routing :: Can 876 ISR Act As Router On Stick

Nov 30, 2012

It doesn't seem like I can set up trunking (dot1q) on this device. Isn't it supported on this device? Can I still set up VLANs with the router-on-a-stick concept working internal in the device, i.e no external interfaces/subinterfaces being configured? If so, can I then connect VLANs to other switches? I have:

-876 ISR
-Catalyst 2960
-SLM2008
 
I know the small biz switch supports VLANs and I think trunking as well--obviously the 2960 supports it. Is there a way with these devices to configure one VLAN for servers/net devices and another for regular end-user computers so that they still talk to one another, or do I need a different router in the mix?

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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 :: 3750 / 3500 - Separate Network Into 2 VLANs

Feb 13, 2012

Currently we have an Ava ya IP Office switch running on the same network as our PC clients. I would like to seperate the two network into 2 V LAN's.

We have a mixture of Catalyst 3750 switches and some older 3500 models.Where do I start? Should I leave the PC's and servers on the default V LAN and just move the IP handsets?

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Cisco Switching/Routing :: Create Different Policies For Vlans On 3750 Table

Jun 27, 2012

I am looking for a way to create different routing policies for vlans on a 3750 table.
  
My set up is 
 
Clients----------- 3750 -------------- ASA ---------------Servers
|
|
|
Internet Routers
 
What i am trying to do is on the 3750 to route private networks to my ASA on different subintefaces and all internet to my internet routers . Each VLAN has a different GW for the internet. On some case i have the ASA as a default gateway. ASA default default route is 3750 where i need the internet traffic to be spllited on the proper Boarder router.

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Cisco Switching/Routing :: 3750 - Configuring Multiple VLANs For Single Port

Apr 11, 2012

I would like to configure a 3750 switch port to be able to use two vlans. I know you can do this with a voice and data vlan, but what about two data vlans ? Say I have two devices, one on a 10 subnet and the other on a 172 subnet, but i only have one wall jack for both devices to plug into. So I use a mini switch to connect both devices and connect the switch to the wall jack; and of course this all leads back to one switch port. When I go to enter the switchport access vlan 172 cmd, how would I also make it so the device on the 10 subnet could route out ?

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Cisco Switching/Routing :: Router On Stick Configuration / Plugged Into ASA 5505

Feb 27, 2013

I have not been able to figure out the resolution. The basic premise is to have 3 inside vlan networks controlled by a 1900 series router. Then have that primary LAN router connect to the inside of my ASA5505 Basic, then go out to my ISP Gateway. I have tried hundreds of different static route configurations on my router and asa. I have tried equally as many NAT and PAT configurations, but nothing seems to work. I have even tried using all the commands (specific to my topography of course) on this weblink from cisco: url...

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Cisco Switching/Routing :: 2950 Router On Stick / Pinging Sub-interface

Oct 12, 2012

In my preparation for my coming CCNA certification I am experimenting with different network configurations. In my test network I am currently working with a "Router on a stick" setup. A Cisco 2611 router connecting a Cisco 2950 switch. VLANs configured on the switch and subinterfaces + dot1q encapsulation configured on the router. Switch only supports dot1q.Router's Eth0/1 is connected to the Switch Fa0/24 port which is also set to trunk mode. I am using a normal Cat5e twisted pair cable to connect the 2 devices.
 
VLANs are working since I can connect a workstation to an access port for example fa0/2 (vlan2) and get Internet access.I can also ping any of the subinterfaces of the router from the workstation.With the current setup I am not able to ping the switch from the router, or the other way around, so in other words I can't remote manage the switch from a telnet or SSH session with this setup. What I am missing?Just to be clear I am pinging the switch directly from the router (Router2611#ping 172.16.100.2), so please ignore all static routes and OSPF. [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 WAN :: 2811 / Connection Between Two Vlans On Same Router?

Mar 21, 2013

We have two 2811 router with configured interfaces:

Router1
interface FastEthernet0/0.380 encapsulation dot1Q 380 ip address 192.168.232.18 255.255.255.248 no snmp trap link-status crypto map clientmap!
interface FastEthernet0/0.382 encapsulation dot1Q 382 ip address 10.132.1.126 255.255.255.252 no snmp trap link-status
interface Vlan1 ip address 192.168.5.1 255.255.255.128 ip nat inside ip virtual-reassembly
ip route 0.0.0.0 0.0.0.0 192.168.232.17
ip route 10.132.254.35 255.255.255.255 10.132.1.125
 
Router2
interface FastEthernet0/0.197 encapsulation dot1Q 197 ip address 192.168.222.2 255.255.255.248 ip nat inside ip virtual-reassembly no cdp enable
interface Vlan1 ip address 192.168.1.1 255.255.255.128 ip nat inside ip virtual-reassembly ip tcp adjust-mss 1452 
 
So my case is: computer from router1's network can ping 192.168.222.2 (router2 -FastEthernet0/0.197 )computer from router2 network can ping 192.168.232.18 (router1- FastEthernet0/0.380),but can't ping 10.132.1.126 (router1- FastEthernet0/0.382).

How can i connect vlan 380 and vlan382.I want the three vlan to see each other.Is this happen with IRB or not?

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Cisco WAN :: 2811 - Connection Between Two VLans On Same Router

Jun 2, 2011

my problem is this:we have two 2811 router with configured interfaces:

Router1

interface FastEthernet0/0.380 encapsulation dot1Q 380 ip address 192.168.232.18 255.255.255.248 no snmp trap link-status crypto map clientmap! 
interface FastEthernet0/0.382 encapsulation dot1Q 382 ip address 10.132.1.126 255.255.255.252 no snmp trap link-status
interface Vlan1 ip address 192.168.5.1 255.255.255.128 ip nat inside ip virtual-reassembly
ip route 0.0.0.0 0.0.0.0 192.168.232.17
ip route 10.132.254.35 255.255.255.255 10.132.1.125
 
Router2

interface FastEthernet0/0.197 encapsulation dot1Q 197 ip address 192.168.222.2 255.255.255.248 ip nat inside ip virtual-reassembly no cdp enable
 interface Vlan1 ip address 192.168.1.1 255.255.255.128 ip nat inside ip virtual-reassembly ip tcp adjust-mss 1452
  
so my case is:computer from router1's network can ping 192.168.222.2 (router2 -FastEthernet0/0.197 )computer from router2 network can ping 192.168.232.18 (router1- FastEthernet0/0.380),but can't ping 10.132.1.126 (router1- FastEthernet0/0.382)How can i connect vlan 380 and vlan382.I want the three vlan to see each other.Is this happen with IRB or not?

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Cisco Switches :: 2811 Router / SGH 300-20 For Distributing Bandwidth Between Vlans

May 1, 2012

I have a cisco Swtich SGH 300-20 Gigabit switch i configure 2 vlan one is default and one is vlan 10
 
Vlan 1 ip range  172.16.0.0/23
Vlan 10 ip range 172.16.2.0/24
 
Client on Vlan getting Proper IP from DHCP Server all i need is to distribute internet bandwidth we have 6/3 mb and i want to give 4/2 mb to vlan 1 and 2/1 mb to Vlan 10
 
Int Gi16 on switch is configured as trunk port and is connected to cisco 2811 router
 
what are the command used to distribute bandwidth between these 2 vlans

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Protocols / Routing :: Setting Up A Cisco 3750 Layer 3 Switch With Several Vlans?

Feb 4, 2011

I'm setting up a Cisco 3750 layer 3 switch with several vlans. I thought enabling routing would route between the vlans, but no such luck.What I want is to share the internet access of vlan 100 with the other vlans/ip-nets.How can I do that?

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Cisco Switching/Routing :: 2811 Router - VLAN 531 Configuration

May 22, 2013

I have a Cisco 2811 Router. I have two VLANS on the router. The first one of course is VLAN 1 and the second one is one that I created from reading everything from this forum.. it is called VLAN 531
 
On VLAN one I have an IP address of 10.8.1.1 and on VLAN 531 I have an IP Address of 172.16.1.1, now what I can do is this... I can.. from a workstation on the 10.8.0.0 segment, ping 172.16.1.1 and one server on that segment that has an IP address of 172.16.1.50, which is fine, but what I really want to be able to do is ping our email server which is on a 10.21.0.0 segment and I cannot. Any commands on what I would need to do to make this work as I would like the 172.16.0.0 segment to ping any other part of my LAN of my choosing.

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Cisco Switching/Routing :: Connecting To Internet From LAN Behind 2811 Router And DSL

Aug 31, 2012

I have a Cisco 2811 Router with a NM-16ESW card installed.  I've connected this to my DSL connecting and I'm trying to build myself a learning lab.  From the router I can ping to the internet and back to a test computer I have connected to one of the card's ethernet ports.  From the test computer, I can ping the router's WAN interface, but no further. [code]

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Cisco Switching/Routing :: How To Do Dual ISP Configuration - 2811 Router

Dec 9, 2011

Will 2811 Router with 4 switch port module, How to do dual ISP configuration on this router.

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Cisco Switching/Routing :: Corrupted Memory 2811 Router

Jun 25, 2012

router 2811 has 2 files ios in flash
Router#sh fla
-#- --length-- -----date/time------ path
1     35202336 Mar 3 2008 16:12:28 +00:00 c2800nm-adventerprisek9-mz.124-8d.bin
...
13    59374168 Mar 5 2012 12:49:22 +00:00 c2800nm-adventerprisek9-mz.124-24.T.bin
 
151076864 bytes available (105431040 bytes used)
 
Router#
 
I try to make it load c2800nm-adventerprisek9-mz.124-24.T.bin
 
[Code] ...........
 
I did
verif flash:c2800nm-adventerprisek9-mz.124-24.T.binit is ok
 
is it corrupted memory? how to fix it?and aslo with System image file is "flash:c2800nm-adventerprisek9-mz.124-8d.bin"it dos not show voice ports for WIC2-FXO in runn conf

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Cisco Switching/Routing :: Select Network Module For 2811 Router?

Aug 7, 2012

how we can select a network module for 2811 router?gigabit or ethernet Hwic?

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Cisco Switching/Routing :: Slow Upload Speed Behind 2811 Router?

Mar 10, 2013

I have working internet behind cisco 2811 on all vlans however upload speed is very slow and ftp server download is slow and times out, previously when directly connected to modem/router was fine? This is router config below: 
      
Current configuration : 2229 bytes
!
! Last configuration change at 02:21:18 UTC Tue Mar 12 2013
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec

[code]....

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Cisco Switching/Routing :: Flapping Between Router (2811) And Switch (2960)

Jul 23, 2012

we have cisco 2960 switch which is connected to a cisco 2811 router. flapping issue between these two devices??
 
The following actions i have taken, but no result.. I have changed cables. have set speed to 100 and duplex full on both the interfaces but the interfaces are showing up up still not getting connectivity. same i have to auto on both sides still no result what configurations should i set to resolve this issue...?

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Cisco Switching/Routing :: Router 2811 Joining All Multicast Groups?

Oct 31, 2012

I have a switch 2960 with 15 multicast groups (for video) and now I am configuring a router 2811 to send two multicast groups to another network.But despite of there is no client sending join yet, the router is joinning in all multicast group, and because of that the router are not standing all the traffic. why the router is joinning in all multicast groups?How could I choose what groups router will join?
 
Router Config:
ip multicast routing
ip pim bidir-enable 
interface f0/0
description Conected to Multicast Source Network
ip address 10.1.1.1 255.255.255.0
ip pim sparse-dense-mode

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Cisco Switching/Routing :: Router Upgrade 2811 To Latest Version

Aug 22, 2012

I upgraded a 2811 router to the latest version and apparently everything went smooth.   I reloaded and did a sh ver the IOS show the correct version, but the boot strap shows the old IOS.  How can I change the boot strap to show the new IOS.

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Cisco Switching/Routing :: 2811 / Hang And Reboot Router Every 3-4 Hour?

Jan 1, 2012

I have Cisco 2811 secure router in my network.  Seven day before it has been hanging every 3-4 hour. i have updated "c2800nm-advsecurityk9-mz.124-17.bin" IOS in the router.  After that it giving some error and every 7-10 hour network has been delay in LAN as well as WAN and not pinging.

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Cisco Switching/Routing :: Nexus 5548UP Connectivity With Router 2811

Aug 15, 2012

In the existing network we have Cisco 2811 router connected to Corporate MPLS cloud. Cisco 2811 is connected to Catalyst 6509 switch(set based IOS with MSFC card). Along with that we have two Catalyst 5509. We are upgrading the access layer by replacing catalyst switches with Nexus 5548 & 2248.
 
For a purpose of testing I have connected 5548 & 2248. Created cPC and ether channels between two. SVI and HSRP configuredon 5548. I am terminating 2651 (test router) on 2248 port 101/1/1. On 5548 I have enabled EIGRP on vlans. I am unable to ping to 2651 from nexus switch 5548 and vice-versa. I can see both devices on CDP but I do not see eigrp neighborship formed.
 
What configuration should go in 2248 and 2651 in order to establish a connection between two? If test is successful then I will connect 2811 to 2248 during actual migration. I assume that in testing if it works for 2651 then it must work on 2811 router.

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Cisco Switching/Routing :: 2811 Router Hang Frequently And Restart?

Dec 25, 2011

i have facing problem in my Cisco Secure router 2811.  It hanging every 5 to 10 minutes and restart.  IOS of cisco router is 12.4 ipsecurity. I have attached the error log and configuration file of my router.  Kindly see the log and let me the problem in my router. 

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Cisco Switching/Routing :: Using Nexus 5548 UP As Layer 3 Router Between Vlans?

Apr 26, 2012

just a simple question. Is it possible to use a nexus 5548 UP switch as a layer 3 router between different vlans on the switch without the layer 3 card ? Or is there no 5548 as a router with the  layer 3 card ?

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Cisco Switching/Routing :: 2800 - Port Speed For 802.11Q Vlans On Router?

May 12, 2012

I got a Cisco 2800 router and am planning to use FastEthernet 0/1 to trunk in 802.11Q VLAN's to cater for some of our radio links. speed and operation of the sub-interface that will be created. Or explain it here. We got a radio link that we want to trunk into this Cisco 2800 and it is suppose to be connecting at 100Mbps but currently operating at around 80Mbps. Reports shows that the max in and out traffic for this link this year till today is 25Mbps. Will it not fail teh CPU etc ?
 
interface FastEthernet0/1
no ip address
!

[Code]....

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