Cisco Switching/Routing :: 2600 / 3550 - InterVLan Routing
Dec 2, 2011
I've been working with these two Cisco devices in my home off and on for several months now but I just can't take it anymore, I'm about to throw them away and go back to Linksys router.
I have a Cisco 2600 Router with only one Ethernet card in it so I have to trunk from my 3550 Switch to that device. I'd like to have my ISP and all users plug into switch and all trunk back to the router's sub interfaces. Currently, I have started over...again, and am unable to simply get the router and switch to ping each other if I put sub-interfaces on the router. See my configs:
2600 ROUTER:
Router#sho run
Building configuration...
Current configuration : 555 bytes
[code]......
3550 SWITCH:
Switch#sho run
Building configuration...
Current configuration : 2302 bytes
!
version 12.2
[code]..........
Port F0/24 is in VLAN 1, as are all ports but Port F0/1 which is my desktop PC. I mocked it up in Packet Tracer and it works just fine. This is just a simple setup and I'm making sure I can ping between switch and router before I move to each next step.
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Jul 4, 2012
upgrading our small office network. We currently have about 75 employees with probably 125 devices on the network. I'd like to create about 10 vlans for the different departments and then configure intervlan routing as needed. Currently we have all unmanaged switches and it's just a huge broadcast storm on the network. We are upgrading our Cisco 800 router to an ASA5505 sec. Plus license. I need some recommendations on switches. Of course, this needs to be done as cheap as possible.... Is there a way to use the ASA to configure all the vlans and intervlan routing and access lists and use a cheaper switch to provide the access layer to hosts?
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Aug 5, 2012
I'm trying to configure intervlan routing between a cisco 2801 router and HP/Amer switches. Using int fa0/1 and subinterfaces I was sure I had it configured correctly, but I cannot ping the default gateways when I place a host in a particular vlan. Below is what I have configured.
HP switch - port 9 connects to fa0/1 on 2801
ip default-gateway 10.1.100.1
trunk 9 Trk1 trunk
trunk 10 Trk2 trunk - to another switch
[code].....
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Nov 21, 2012
I am using a 3750 as a default gateway for multiple Vlans on a few 2960 switches. The trunk lines are configured and working and I have assigned ip addresses to each of the Vlan interfaces on the 3750. My issue is that I can only ping the ip address on the Vlan interface of the 3750 if I have a working computer plugged directly into the Vlan on the 3750. I only have 3 vlans on the 3750 that have hosts directly connected (vlans 2, 10 and 40) the other vlans ( 20 and 70) don't have any clients plugged into them on the 3750 but the hosts reside on 2 different 2960s that connect via trunk ports. How do I keep the vlan interface on the 3750 switch pingable when I don't have hosts directly connected in that vlan on the 3750? (yes, I have enabled ip routing on the 3750)
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Apr 16, 2012
I have been looking into this for a while and I can't seem to figure out why my 2nd vlan is not able to connect properly to the net. My switch has 12 ports where my devices connects directly, they are all on Vlan 1 and they all work perfectly. on Port 12 I have a dlink router that is connected to a cable modem. the dlink router has an Ip address of 192.168.0.20,I created a second vlan (vlan2) and enabled dhcp relay on it. then I assigned port 9 on the switch to (vlan2),my laptop which is connected to port 9 seems to get an ip address fine and able to ping only some devices on my network (vlan1) and is not able to,go out to the internet.
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Dec 11, 2012
I implemented access list on cisco 3560 switch but it never works. I want to block access from network B to Network A and allow from Ato B
Network A. 10.0.12.0/24
Network B 10.0.24.0/24
The configuration is
interface Vlan1
description Data VLAN
[Code].....
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Sep 5, 2012
On cisco and am having some issues with intervlan routing. I have followed the vids and manuals but just can seem to get this working. I have the following network lab set up.
Vlan 10 = 10.70.1.9/24
Vlan 20 = 192.168.0.1/24
ME2400 firmware
ROM: Bootstrap program is ME340x boot loader
BOOTLDR: ME340x Boot Loader (ME340x-HBOOT-M) Version 12.2(35r)SE3, RELEASE SOFTWARE (fc1)
[Code]...
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May 22, 2013
my company pay a switch 3750 X. WS-C3750X-24T-E. It uses IP services basically but I failed to configure InterVLAN routing. why interVLAN routing doesn't work on my switch?
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Apr 18, 2012
I have a collapsed core design with routed ports between all components. Access layer switches, data center switches, core/aggregation. All routed (no spanning-tree at all).Now...I have to add an IBM BladeCenter with a BNT layer 3 switch to my topology. However, those nasties don't seem to support routed ports.How can I have a routed port on my cisco switch and a standard access port on the BNT and still establish an adjacency with an SVI? I am running OSPF, but I am labbing this in my home lab with 2 x 3550s and EIGRP.
On SW2:
*Mar 1 00:57:00.711: EIGRP: Received HELLO on Vlan100 nbr 10.1.1.1
*Mar 1 00:57:00.711: AS 999, Flags 0x0, Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
*Mar 1 00:57:02.303: EIGRP: Sending UPDATE on Vlan100 nbr 10.1.1.1, retry 9, RTO 5000 tid 0
*Mar 1 00:57:02.303: AS 999, Flags 0x1, Seq 17/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
[code].....
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Jul 24, 2007
Does Catalyst 3550 switch support inter vlan routing ?
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Apr 11, 2012
Is L3 ip routing on by default in 3550s? If so is the "ip routing" command visible in the config file? If no - I assume that one would enable L3 routing with that config command.In general terms are there any IOS devices where ip routing is enabled and one would not see the "ip routing" command in config. I.E. if that command is not visible in the config could you assume there is no L3 capablity in that device?
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Sep 18, 2012
The layer 2 switches are connected to layer 3 Switch via trunks, and routing between layer 2 switch ports with configured SVI's on 3550. All working fine. Now I'm trying to configure routing between 2800 and 3550, I tried connecting both Straight Throught and Crossover cables to the 2800 Fa0/0 and Fa0/1 ports as well as the switchports on 3550
No switchport commands are configured however, the lights do not go on for both straight through or crossover cables. I tried connecting 1750 routers but same result. My goal is to have all the VLANS routed to the internet with configuring NAT translation the router.
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Apr 26, 2012
I have a 3550 l3 switch configured as follows:
vlan 10 ports 1-10
vlan 21 ports 11-20
vlan 30 port 21-30
vlan 40 ports 31-40
default vlan should be vlan 21
I have the servers, switch and router connected to vlan 21. Vlan 21 works great I can browse the internet, but I cannot ping any other vlans. router is connected to fa0/19
[code]
Building configuration...
Current configuration : 4833 bytes
!
version 12.2
no service pad
[code]....
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Mar 10, 2013
I'm having some problems setting up vlans to talk to each other on a 3550-12T switch. Its quite a simple setup I have, but I need to split my network up.
Currently I have a network of 192.168.25.0 255.255.255.0 I want to create a new vlan network of 192.168.30.0 255.255.255.0 So I have configured my vlan1 (default vlan) to have an ip of 192.168.25.250 for getting to the management page
I have created a vlan2 of 192.168.30.1 255.255.255.0 ?I have a port 10 linked to one of my 3560G's?In port 9 which is on vlan2 I have my pc plugged in with a static ip of 192.168.30.50 from the router I can ping any device on 192.168.25.x.
I can not ping 192.168.30.1 (which is my vlan2) nor can i ping the PC.
I have enabled ip routing But I dont have a default route, this is becase we don't have a router on the network.
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Oct 18, 2011
i have 2960 l2 switch connected to the ASA 5505. for some or the other reason i am not able to do intervlan communication. have done trunk mode on both ends on the switch as well as on the ASA and native vlan 1 allowed. the trunk is up up i am able to ping only the vlan 1 ip from the switch to the ASA for the vlan 2 i am not and similar for vlan 3.
config on the ASA
ASA Version 8.2(1)
!
hostname ciscoasa
[Code].....
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Feb 11, 2013
How do i enable InterVLAN MultiCasting. I have a WS-C3560G-24TS as my core switch and it does InterVLAN Routing. I have a Server VLAN (70) and Workstation VLAN (71). I have a server that i have set up to deploy images to computers. Up to this point i have only done one computer at a time, so unicasting was ok. I would like to be able to Multicast to multiple computers, but am unsure what i need to do on the switch (if anything) to enable this.
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Aug 29, 2012
We are trying to figure out how to configure this properly and so far we are stuck. We have a VMWare server with two different vmnics each on a different VLAN. We have each of these vmnics connected into their own switch port on a 3560G along with the appropriate VLAN membership for said ports. We have an additional port on this same switch in trunking mode connected to our firewall to a NIC that has an IP address in the respective VLAN networks. This port is also set for dot1q encapsulation. Each VLAN also has an IP set on the switch that is in the appropriate VLAN. We are having issues in this configuration getting the one VLAN to talk to another.
I know if we were in all Cisco mode then we would use ROAS to do this inter-vlan communication. How to make this happen short of changing hardware?
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Jan 4, 2012
I have a RVS4000 connected to my cable modem which I use as my gateway, the IP address of the RVS is 192.168.3.254
I have a 2811 with 3 subinterfaces of which I can ping all of them from my PC which at the minute is in VLAN 1, the only network that can connect to the outside world is VLAN 1, how can I enable the other 2 vlans to connect to the internet?
My set-up details are
Router
interface FastEthernet0/0.1
description *** Data Network***
encapsulation dot1Q 1 native
[Code]....
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Jul 6, 2012
I am trying to setup intervlan configuration and stuck on a problem. Here are the details:
1. Switches Catalyst 3750-x (as core switch) and Catalyst 2960S (as access switch)
2. Both switches have VLAN 20 and VLAN 1 on their database and both are active. BTW, after I figure out how to properly configure interVLAN routing the native VLAN 1 will not be used anymore. This is just an initial test.
3. VLAN 20 SVI interface (IP 192.168.20.200) on 3750 is up and can be pinged from catalyst 2960.
4. VLAN 1 SVI interface (IP 192.168.170.200) on 3750 is up and also can be pinged from Catalyst 2960.
5. Catalyst 3670 can ping a client computer (IP 192.168.20.10) connected to Catalyst 2960.
6. IP route enabled on 3750
7. Trunking is enabled on etherchannel connecting both 3750 and 2960
8. Client computer in VLAN 20 (connected to 2960) can ping VLAN 20 SVI interface 192.168.20.200 on switch 3560.But, the client computer in VLAN 20 can not reach any computer in VLAN 1 and vice versa. Strangely, the switches which these computers are connected to can ping each other or any connected client copmuters without any problem as described above.
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Jan 14, 2011
I have 3560 with attached 3 networks, 172.16.1.0/24 172.16.2.0/24 and 172.16.4.0/24, all of them have a vlan interface, 172.16.1.254, 172.16.2.254, and 172.16.4.254, I have enabled intervlan routing with command ip routing and they have route beetwen each other. Now I want to create PBR and let them go to the internet from different gateways.
so i did 3 access list:
access-list 20 permit 172.16.1.0 0.0.0.255
access-list 10 permit 172.16.2.0 0.0.0.255
access-list 30 permit 172.16.4.0 0.0.0.255
and 3 pbr
route-map supnet permit 20 match ip address 10 set ip next-hop 172.16.2.3
route-map blade permit 20 match ip address 30 set ip next-hop 172.16.4.250
route-map main permit 20 match ip address 20 set ip next-hop 172.16.1.4
attached them to corresponding vlan interfaces and everything ok they have different gateways to internet but now I dont have routing beetwen them?
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Nov 10, 2011
- I have an older router 2600 running 12.1(4) IOS.
- There are a few clients connected to it via the frame relay connection.
- There is an IP that clients access 192.168.1.10 for example
- We need to do a NAT for this IP for one specific client only like "ip nat inside source static 192.168.1.10 1.1.1.1"
- However if I do that, that will effect other clients too
- On the interface for this client I'll be using "ip nat outside"
- Is there a way to accomplish this without effecting other customers?
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Sep 17, 2012
I am trying to configure SDM 2.5 on a cisco 2600.I have access via telnet to the router and was able to change the enable password - which i think is level 15 (right?) and setup (and bring up) the ip on the ethernet interface. I can ping - and get response from - the router Trying to install SDM on the router i need to provide the default username i tried both admin/administrator but SDM can't communicate with the router?
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Jul 30, 2012
We have recently leased an internet connection in our office which comes from the service provider as radio link and BW is 2M. I have clients more than 60 that will share the connection and access internet. I have configured a Cisco 2600 router as below:
Building configuration...
Current configuration : 988 bytes
!
version 12.2
no service single-slot-reload-enable
no service timestamps debug uptime
no service timestamps log uptime
[code].....
So far I have read regard NAT it degrades performance as it need to translate every data packet comes from the source and goes to internet. So a question comes in my mind is there any other way how I can share this connection among users with private ip address? Or NAT is the only method to share internet connection among users with private ip addresses?
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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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Jul 8, 2012
I have a 2600 router and im trying to set it up for SDM. The crypto command is not there. What do i do?
show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-J1S3-M), Version 12.3(15b), RELEASE SOFTWARE (fc1 )
Copyright (c) 1986-2005 by cisco Systems, Inc.
Compiled Thu 25-Aug-05 13:38 by ssearch
Image text-base: 0x80008098, data-base: 0x81A255C4
[code]....
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Jul 24, 2012
The situation include 2 cisco routers an 2 switch 3550
so we have Router A in Vlan x access ----->Sw1----Trunk----Sw2<------Vlan y Access Router B I 've to enable rip1 on guys A and B ONLY !!! Avoiding any kind of tunnel I though it was all around fallBAck bridging ... but after days of tries ...
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Oct 25, 2011
We're looking at implementing a new phone system which will use voice over ip. Currently we have a mixture of Cisco 3750 and Cisco 3550 switches which don't support power over ethernet. Its been suggested we could continue using the current switches and power the new phones using power adapters.
Int terms of implementing qos (we don't have any at the moment) for the voice will a Cisco 3550 be OK and will having a mixture of different models using 3550 and 3750 pose any challenges with the qos policy for the voice. I believe there are differences in that the Cisco 3550 doesn't support srr-queues but having little experience with qos I'm not sure what impact this will have if any?
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Oct 31, 2011
I am having issues working on my QOS between 4510 and 3550 switch connecting on layer 3 through a service provider. I have class maps and policy map setup on both sides and then policy map attached to interfaces however i dont see any traffic matching in policy map on 3550 switch, i do see some traffic matching on 4510 but the speed with which its increasing has my doubts about it. When i make voip calls ( VOIP switches are sitting behind 3550 and are mainly 3550 pwr 24 port switches with phone ports configured for auto qos voip cisco-phone and trusting cos) i rarely see the RTP matching in class under policy map.
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Jan 17, 2013
im trying to install a ios 12.2v on my switch. when the screen prompt it does not show me the user move symbol " SW1> ". all i see is " SW:" and from there i can not enter the commands to download from tftp server !
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Mar 28, 2012
I have a 2600 Router series and I cannot remember the Password. I have tried following web pages that state to use control Break on the boot up but its not working.can reset that pw and write erase my configuration file?Here is my boot up. I have tried hitting control break at the very beginning over and over and then again when at the cold boot it has not worked....
System Bootstrap, Version 12.2(7r) [cmong 7r], RELEASE SOFTWARE (fc1)Copyright (c) 2002 by cisco Systems, Inc.C2600 platform with 131072 Kbytes of main memory
program load complete, entry point: 0x80008000, size: 0x1c9468cSelf decompressing the image : ######################################################################################################################################################################################################################################################################################################################################################################################################################################################################## [OK]
Smart Init is enabledsmart init is sizing iomem ID MEMORY_REQ TYPE00036A 0X000B3B80 C2610XM Single Fast Ethernet 0X00098670
[code]....
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Jan 24, 2012
I have a cable modem with my 2600 Router and i have a little speed problem when I'm going out to the web via my F0/0.. according to regular speed test sites my speed is around 20mbps but when i hook up to my modem directly i get a solid 40mbps.. now I've changed my Cat 6 cable from my modem to my router and this are my settings in the router.
[Code] ...........
I see some drops and lost carriers but not sure what those might mean?
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May 2, 2012
I'm trying to configure a disco router 2600, my internet connection is via a cable modem. I get a dynamic IP from the cable modem but when I ping to any external IP I have errors.Copy show config and show interface f0/1
GUEST#show config
Using 1103 out of 29688 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
[ code]...
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Jul 9, 2012
I have a Cisco 2600. I would like to know how to redirect traffic going to a certain IP address three hops away to an IP address on a locally connected segment.
Ex. Packet leaves a device with source IP of 10.10.10.10 and destination of 20.20,20.20 When the packet hits the router (10.10.10.1) I want the router to redirect the destination of 20.20.20.20 to 30.30.30.30 (locally connected segment).
The router has two physical interfaces.I am thinking along the lines of creating a VLAN with an ip of 30.30.30.1 and then doing a NAT translation from 20.20.20.20 to 30.30.30.30.
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