how to configure intervlan routing on layer 3 switches
This is where Cisco Nexus switches come into play.Nexus is the new Cisco brand of next generation switches (which include models such as 3000, 7000, 9000 series etc) for satisfying the needs of modern networks and data centers.Cisco NX-OS (Nexus Operating System) is the software which is powering this new generation of switches and has many similarities (regarding command structure etc) with the traditional IOS software which has been in production for decades.I have prepared this article to showcase a simple yet popular scenario using Nexus switches.The example below will explain how to configure Layer 2 VLANs, Layer 3 Switch Virtual Interfaces (Note that I have published a similar scenario in the past which depicts how to implement Inter-VLAN routing using regular IOS switches As shown in the network diagram below, the topology includes two Nexus access switches (AccessSwitch 1 and AccessSwitch 2) and one Nexus Core Moreover, the Core Nexus switch is also connected to a border router with a pure Layer 3 Interface (Route Port) as we will see in the configuration below. Do you know any good link or tutorial to access control lists so I can learn how to implement that? This is usually useful for providing internal LAN segmentation and traffic control.Is it possible to communicate between two VLAN in different LAYER 3 switch and the same subnetwork.On the inside interface of the ASA Ethernet0/1 the ip address should be 10.0.0.2 right?Yes this is correct. Core Layer 3 Switch. !Hi i have a 3560 that i have to connect to a VSAT dish via ethernet and connect ip phones on the other side, do i go about this? InterVLAN routing on the Catalyst 3550 has certain software requirements in order to support interVLAN routing on the switch. The issue with using a switch as your border device towards the internet, is if you suffer a DoS attack the switch can’t withstand that and will cause denial of service easily to the whole network.i have planned to use 3750 behind Linux based distro. Just one more thing (I believe). The other alternative is that you can configure Vlan10 lets say as a management Vlan and then configure an IP address in Vlan10 subnet space (e.g 10.10.10.11 as you describe above). I tried the following– i connect a host from vlan 10 – ping from vlan 10 to vlan 20 its ok; ping from vlan 10 to vlan 30 its ok; ping to internet its not ok, but if u assign a static ip to the host under vlan 10 it will be able to ping to the internet. If mixed mode ia available how L3 switch’s uplink port would combine the ‘switchport mode trunk’ and ‘no switchport’ mode simultaneously? Before you attempt this configuration on a 3550 series switch, ensure that you meet these prerequisites:InterVLAN routing on the Catalyst 3550 has certain software requirements in order to support interVLAN routing on the switch. The static routes must end with .0 to signify the whole class C subnet.You have done a great job in this tutorial. One of them is configured as the Layer3 switch, has three VLANs:Two of the 3750’s are connected to this L3 switch via (LACP) trunks, all three VLANs on all the L2 switches. More Reference: PDF Files: Configuring InterVLAN Routing with Catalyst 3750/3560/3550 Series Switches. Step 3. You cannot apply standard layer 3 ACL’s to control inter-vlan routing in your scenario. A Routed Port will be configured between the Layer3 Switch and ASA internal interface to route packets towards the internet (via the ASA).The focus of this article is to show you how to configure the Layer2 and Layer3 switches to provide routing between VLANs using regular IOS based catalyst switches. This document provides the configuration and troubleshooting steps applicable to the creation of Layer 3 interfaces. 1721 has DNS entry of my ISP. PS: I’m starting now at ciscos worlds, so, my question could be not make sense xDYou don’t need to configure native. Currently i can ping between vlans. Just to expand your topology a little, if I connect another L2 switch to either of the L2 switch port Fa/01, will all the ports of the new switch now belong to vlan 2 without me having to configure anything on the switchport?Yes, all hosts on the new switch will belong to VLAN 10 when their traffic goes from the new switch to the rest of the network. Helped me a lot so far. You will need to configure DHCP forwarding using ip helper-address. Thank you in advance!First of all, the DNS should be either the Aztech router IP (192.168.1.2) or your ISP public DNS.