Cisco Switching/Routing :: Setting Fixed Ip Address On Vlan?
Jan 25, 2012
I need to create several VLans on my switch.After reading the admin guide pdf, i still don't understand how to create any simple VLan.some tutorial or steps (with IE or Mozilla browser) how to create and use VLan, and to connect one VLan to another.For example,i need to create 3 VLans.
First Vlan consist of 5 ports (Vlan Name = Red)
Second Vlan consist of 15 ports (Vlan Name = Green)
Last Vlan consist of the rest of the ports (VLan Name = White)
Any "best practices" or recommendations on how to migrate from a fixed router (3745) to vlan routing on Catalyst 4507 switches in order to minimize the disruption to the network.
We got a layer3 switched network, with one vlan for every switch, routed by a cat4006. [code] So can we put some ports on different switches in, let`s say vlan 50, with different ips? For example, Port 0/3 on Switch 1 and 0/8 on Switch 2, but keeping the ip of the "old" vlan? Or is it necessary to configure a specified vlan interface with ip-adress for every vlan if i want to route it?
I want to make a small LAN, not connected to the internet. I open control panel/networking and find my Ethernet adapter. I unchecked IPv6 and click on IPv4 and select "Properties". I gave a fixed IP address of 192.168.1.1 butI can't ping 192.168.1.1
And a program I wrote can't access a MySql database on that address. I am using Xampp, the program can access the database if its connect string says localhost, not 192.168.1.1 Also, I can access through PhpMyAdmin and invoking MySql from a Dos box - so, MySql seems to be ok. Wondering why I can't ping, I run IPCONFIG and my Ethernet adapter's address is the old one, not the new fixed one that I assigned.
[UPDATE] I haven't attached a router yet, it's a stand-alone PC. Thanks for pointing out that the router, when added, will probably be 192.168.1.1 so I should probably make my PC 192.168.1.2. but my point here is that I can't ping what I thought I set as my static IP and, indeed, it does not show up when I run IPCONFIG - I get the previous value.
I am trying to set up a network that has 1 internet connection, requires a local LAN for the business, and another LAN for public wireless access. Here is what I have and details on what we want to do.
We have the main LAN set up and all is working well, internet access, 6 WAP's connecting and all is working like a charm. Internal IP range is 192. 168. 0.0/24.We have all 6 WAPs on the internal network, with 2 SSID's on each WAP and each SSID is assigned to a VLAN. One SSID is internal for staff, the other is for guest access for members. The internal staff wireless access is working fine.
We want the guests to be able to access the internet, but not the internal network, but we need to access them for administration from the internal network.
We created a second VLAN on the switch and added the 6 WAP ports to it as tagged for VLAN2. These 6 ports are also on VLAN1 (default). We have a second VLAN on the router, have it handing out DHCP addresses for the 192.168.25.0/24 range with DNS servers.
Where we are having trouble is with getting the guests wireless access to work. Guests can see the wireless, log onto the access point but that's it. They don't appear to get a 192.168.25.0/24 IP, or any IP actually, and thus cannot do anything.
One of the ports on the 3750 stack was configured for VLAN121. It was changed to VLAN40 and the configuration saved. Both VLANs exist in the switch configuration. As soon as a host was connected (in this case, a label printer) the port VLAN reverted back to VLAN121.
I have a POE switch running 12.0(5). I have port 24 connected as a trunk connected to the main switch. I need to add an ip address on vlan 21 which is where the network vlan is. I created it but I can not seem to enable it. I have issued the no shut command several times, but doing "sh ip int brief" it keeps showing up as administively down.
The customer has 4 6500 switches. 2 Physical locations, and 2 switches at each locations. The locations are connected via 1 200mpbs metro ethernet(layer 2). We ran into an issue during a DR exercise. We had created a VLAN for DR testing purposes, that did not have any SVI configured, but the VLAN did exist on one of the 6500s. When the customer restored a VM to the DR VLAN, we lost connectivity to the production server. After some troubleshooting, we found the cause to be the same mac address showing up, but in a different vlan. Once we removed the DR vlan from the 6500 all was well. It seems like switches are ignoring the VLAN in the mac address table, and forwarding to the incorrect ports. The switch is not reporting any mac flapping in the logs. No spanning tree topology changes are occurring. Code version is 12.2(33)SXJ2 on all switches.
When I read Nexus 5K install guide , I found the follow :The Cisco Nexus 5596UP switch has the following features: # •48 fixed 1- and 10-Gigabit Ethernet server connection ports on the back of the switch AND The 48 fixed ports support 8-, 4-, 2-, or 1-Gbps Fibre Channel transceivers and 1- or 10-Gigabit Ethernet transceivers. Does these is a conflict ?The 48 fixed port on this switch support only 1- and 10-Gigabit Ethernet or 8-, 4-, 2-, or 1-Gbps Fibre Channel and 1- or 10-Gigabit simultaneously ？
I am little confused about the location of FIB table and adjacency table in both cisco 6500 series and fixed ports switches .In case of 6500 series switches
"Central CEF mode:The CEF FIB and adjacency tables reside on the route processor,and the route processor performs the express forwarding. Use this CEF mode when line cards are not available for CEF switching, or when features are not compatible with distributed CEF."
If line cards do no support CEF, then FIB and adjacency tables are built and are located on route processor( control plane ). Data plane operations are implemented in software and route processor performs those operations.
Some Cisco switches actually use different hardware to control the different planes. For example, the Cisco Catalyst 6500 is a modular switch that uses the Multilayer Switch.Feature Card (MSFC) for control-plane operations, and the supervisor Policy Feature Card (PFC) for the data-plane operations.
Supervisor module has has MSFC and PFC. MSFC implements control plane operation where as PFC implements data plane operation.But the first paragraph says in Central cef mode, both data plane and control plane operations are implemented by route processor. [code]
Do these switches implement the Central mode cef in same way as mentioned above. i.e
"Central CEF mode:The CEF FIB and adjacency tables reside on the route processor and the route processor performs the express forwarding. Use this CEF mode whenline cards are not available for CEF switching, or when features are not compatible with distributed CEF."Or fixed ports switches such as 3750 implement data plane operation in hardware where FIB tabe and adjacency table are maintained on Data plane.
I have a fixed external ip address.I have port forwarding setup for accessing a NAS inside my LAN, lets say port 12345.Now when I use my laptop outside my own LAN, e.g. 99.99.99.99:12345 resolves nicely to my NAS. But when I use the same 99.99.99.99:12345 inside my LAN, it does not resolve. Instead, it gives me a 'server takes too long to answer' error
I have also setup a virtual host to an ip cam inside my network. That one resolves just fine. I tried enabling remote management on the DIR-655 and also that works fine using 99.99.99.99:8888.When I replace the external ip address with the internal ip address of my NAS, thus bypassing port forwarding, it obviously also works ok.
Why the forwarded ports are not accessible when I use my own external fixed IP address? Does the DIR-655 treat it different than other external IP addresses?
I have a running L2TP/IPsec VPN setup with authentification against a radius server (freeradius2 witch mysql). I would like to have some of my VPN users get a fixed IP address instead of the dynamically assigned IP Pool.
The radius server is returning the correct parameters, I think.
It´s a Cisco 892 Integrated Service Router. Code...
Is there any way to granularly allow hosts from one vlan to be able to access another vlan with Inter-VLAN routing DISABLED?Can the use of an ACL override the setting?In general I don't want any traffic between VLAN's but there are 2 hosts on one VLAN that I would want to allow access to a server on another VLAN.
I have recently purchased 2 SG 300 switches, 1 x SG 300 52 & 1 x SG 300 10, and I am hoping getting the following set-up working.To assist I have drawn the following simple network diagram (below) which hopefully makes it a little clearer what I am trying to do:I have 2 companies occupying a single office with the requirement to share printers/devices etc... so basically I am looking to set-up 2 VLANS (say VLAN 10 & VLAN 20) with inter-vlan routing. To add a little complexity the main comms area is located in the basement of the building, this houses the 2 DSL routers and 2 Servers, one for each company. I am proposing putting the SG 300 10 port switch in here and then use the 3 uplinks I have been given to connect back to the SG 300 52 which is in a patch cabinent 2 floors up. I want to use 2 uplinks (in a LAG) for Company A and 1 uplink for Company B. FYI. DHCP is being served out by each respective router.
Between our hosting and a customer we have an extended vlan, traveling on a fiber, between two cisco 3560 switches.The thing is, that we want to create one or more vlans inside that extended vlan, in some way if possible?
I have two networks at two sites with a dot1q trunk between the two L3 switches at both sites (no routers involved)
SITE A - Cisco 3750 L3 - VLAN ID 50 10.10.50.0/24
SITE B - Cisco 3750 L3 - VLAN ID 50 10.20.50.0/24
I would like to extend the SITE A VLAN to SITE B so that I can move hosts from SITE A to SITE B without needing to change their IP address but the vlan ID is already in use. Obviously the easy solution is to change the VLAN ID for one or other of the sites but both sites contain hosts that run 24/7. Is there a way to join two VLANs with different IDs together.So for example I create a new VLAN 60 at SITE B and associate it with VLAN 50 at SITE A.
but on interface gi 1/0/1 i want to have data from vlan 10 tagged as VLAN 20. At this time i have solved this issue very primitively
I have set up gi 1/0/2 as int mode acces, acces vlan 20 and i have connected gi 1/0/2 with gi 1/0/3 with eth cable. int gi 1/0/3 is switchpor mode acces, switchport acces vlan 10
I have a 3750G switch in my production network that only has VLAN 1 on it. All ports are in a default state and VLAN 1 is disabled. The switch is passing traffic but shouldn't having the default VLAN shut down cause the ports not to pass traffic? If I start to create VLANs will that cause the switch to stop passing traffic?
I am trying to setup a L2tpv3 VLAN-to-VLAN tunnel.My setup has two Cisco 890 router with Cisco IOS Software version 15.0(1) M4. These routers are connected directly on FastEthernet port 8.
One linux machine is connected on FastEthernet port 0 on each router. The two linux machines are on same vlan. I am trying to establish a vlan-to-vlan tunnel between the routers and send traffic between the linux machines.
I followed the case study 11.4 from [URL] and configured the l2tp-class and pseudowire-class. However, the vlan interface configuration is different on 890 router.
We have a low bandwith (15-20 Mbit/s) to the ASA from our Client vlan. If i connect the Client to the same vlan as the ASA is, the bandwith (90 Mbit/s) is good.
And we have following error message in the log from the switch:
%PLATFORM_UCAST-4-PREFIX:
One or more specific prefixes could not be programmed into TCAM and are being covered by a less specific prefix, and the packets may be software forwarded I first get the idea that the switch is overloaded with router traffic. Thats why i assuming i have to check the sdm templates, but i'm not sure if this resolves the issue.
I started using RIPv2 on Packet Tracer. I got two subnets to connect with two routers. After I completed that, I decided to add a third router. How to setup the Routing Table for atleast R3 ?
I have a network with a Catalyst 3750 as the main switch and then some Catalyst 2960 switches that are plugged in to that. I have a server running windows server 2008 with a couple of virtual machines running in Hyper-V. I created 4 VLANS listed below and gave the 3750 the following IP Address.I would like the 3750 to only be configurable from VLAN 40 but currently every VLAN can connect to it, I noticed in the standard web page settings there was a setting for "Management VLAN" but it was set to 1 and would not let me change it, I kinda assumed that was for the management port in the back.-Now the tricky part, I was trying to set up routing between the VLANs and so far I have only been able to get a sort of "all or nothing" routing to work. I can turn IP routing on and add two or more VLANs to the routing and it works fine. But what I was hoping to do is create a couple of "junction vlans" that would only route to one or two other vlans. For instance, I wanted to create a VLAN 100 that routed to VLAN 20 and 30 but nothing else. I also want to route VLAN 1 just to VLAN 30, and so on. I am able to do each one of the cases but only one, it seems like the switch only supports one "routing table" am I missing something or is this just a limitation of the switch?
I have a network with several catalyst 2960 switches and one catalyst 3750. I have created two VLAN and set up the proper routing and everything is working fine there. I have a client/server application that used multicast in the initial start up for the client to determine available servers, the issue is one of my clients is on a different VLAN then the server. I am able to route the multicast using MVR as long as both the server and the client are plugged into the 3750 by creating a static route, making the server a source port and the client a receive port. Unfortunately I need the client and the server plugged in to different 2960s. My question is how do I establish multicast routing between the two and perferably do it dynamically (always route multicast traffic from one VLAN to another).
I have a DC topology based on 2 layers, access and aggregation, based on 2 pairs of N5548Ps, both without L3 Daugher Cards. My intent is to use the aggregation N5K pair as L3 inter VLAN layer, so I configured all the VLAN default GWs there. The 2 layers are interconnected via vPC, in a double-sided vPC topology for some N2Ks and some vSwitches. The point is that, despite connecitivity is working fairly ok, for some applications, like file transfer via either FTP or HTTP, between hosts in different VLANs, the performance is too poor. The file transfer starts ok, but after a while it becomes lower and lower. ICMP is working, but I can see some strange random behaviour, like having some packets taking more that 20 ms (sometimes 40 or more), whilst average is 2 ms.
I read through some articles saying that until you don´t have the L3 license (the one coming with L3 Daughter Cards) you can expect some weird behaviour on L3 level. Is that true?. What can I do apart of purchasing L3 Daughter Cards?. Can I enable L3 Basic license at the moment (I don´t need dynamic routing for now).
Here some excerpts of what I´m saying:
PING results: 10000 packets transmitted, 10000 packets received, 0.00% packet loss round-trip min/avg/max = 0.809/2.496/57.559 ms System version: 5.0(3)N2(1)
License and features on the N5Ks:
switch# sho license usage Feature Ins Lic Status Expiry Date Comments Count -------------------------------------------------------------------------------- FCOE_NPV_PKG No - Unused - FM_SERVER_PKG No - Unused - ENTERPRISE_PKG No - Unused -
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. I think it has to do with the routes. [code]
We have two Cisco 5505 firewalls connecting to two ISP's . The two internal LAN's on the firewalls are 192.168.184.0/24 & 192.168.186.0/24. We also have a Cisco C3560x layer3 switch with vlan interfaces 184.3 & 186.3. We have two DGS-3100 Dlink layer 2 switches connecting our users to the Layer 3. Ip routing is enabled for intervlan communication & I can reach the Switch interfaces & firewall gateways from machines on both on the vlans.We have pbr enabled on the 3560 & users only on the .186 network can get to the internet. The switch is running the ipservices license & the sdm template is "desktop routing" .
Users on the .184 cannot access the internet but we can ping the layer3 interface & the firewall gateway. [code]
In 3750 switch,I have configured intervlan routing.I have three vlans Vlan 10,vlan 20,Vlan 30 and I have assigned IP address for that Vlan.In vlan 10,I have connected one systen gigabitethernet 0/1 interface.From my system I am able to ping vlan 10 ip address but I can't able to ping other vlan ip address (vlan 20,vlan 30).Is it possible to up the protocol for all that time.
I recently set up a small photography business and am trying to get a Cisco 877 and Cisco SG300-10 switch to talk to each other.
What I want is for the Cisco 877 to handle the internet and the SG300-10 to handle the local network,
I have set up 2 vlans in trunk mode on the switch and want vlan2 to manage local traffic and vlan3 to handle the internet.
I have got the 877 connecting to the internet what I dont have, traffic going to vlan2 on the switch from the 877
Look at the running configs for the switch and the router and tell me how to get the vlan on the router to pass traffic to the switch. In a nutshell I am inserting the internet into the switch but am not sure how to progress. I have the c870-advipservicesk9 image file on the router.
