- #Default route to internet on router on a stick full#
- #Default route to internet on router on a stick software#
- #Default route to internet on router on a stick series#
- #Default route to internet on router on a stick mac#
Packets that need process switching are handled by CPU of the master
#Default route to internet on router on a stick mac#
The MAC address of the master is used as source MAC of routed packets Generating and distribution of the Distributed Cisco Express Forwarding (dCEF) database to the different stack members Processing of received routing protocol messages Initialization and configuration of the routing protocols The stack master performs the following tasks: A router will create a single adjacency with a stack of 3750 routers. If the stack master fails, you would lose the extended routing capabilities if the other members run an SMI image as opposed to the EMI image of the former master.Ī stack of Catalyst 3750 switches appears to the network as a single router, independent to which of the stack switches the routing peer is connected.
#Default route to internet on router on a stick software#
However, it is advisable to have the same software running on the different stack members.
#Default route to internet on router on a stick full#
If the master switch is running an EMI image, the whole stack will support the full set of supported routing protocols (such as Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), and such) even if the other stack members are just running an SMI image. On a stack of Catalyst 3750 switches, the software running on the master determines the capabilities of the whole stack. In our example, the engineering VLAN could be restricted (using access-lists) from accessing devices on the finance VLAN. Such a VLAN design also has the added benefit of allowing the administrator to restrict communication between VLANs using access-lists. If routing is enabled, the devices in each VLAN can talk to one another without all the devices being in the same broadcast domain. For example, the engineering department VLAN would only have devices associated with the engineering department, while the finance VLAN would only have finance related devices. The switch receives a packet, determines that it belongs to another VLAN, and sends the packet to the appropriate port on the other VLAN.Ī typical network design segments the network based on the group or function the device belongs to. A new breed of switches, however, (for example, 35) incorporate routing capability within the switch.
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L2 only switches require a 元 routing device (either external to the switch or in another module on the same chassis). On the contrary, devices in separate VLANs require a routing device to communicate with one another. Devices within a VLAN can communicate with one another without requiring routing. In a switched network, VLANs separate devices into different collision domains and Layer 3 (元) subnets. If you are working in a live network, ensure that you understand the potential impact of any command before using it. All of the devices used in this document started with a cleared (default) configuration. The information presented in this document was created from devices in a specific lab environment.
![default route to internet on router on a stick default route to internet on router on a stick](https://techgenix.com/content/wn/img/upl/image0021260538266435.jpg)
Note: The configuration from the Cisco 7200VXR is not relevant and, therefore, is not shown in this document. Two Catalyst 3750G-24T switches running 12.1(14)EA1 EMI Software Release stacked togetherĬatalyst 2950G-48 running 12.1(12c)EA1 EI Software ReleaseĬatalyst 2948G running 6.3(10) Software Release The information in this document is based on the software and hardware versions below. Knowledge of creating VLAN trunks for more information, refer to the Configuring VLAN Trunking section of Configuring VLANs Knowledge of creating VLANs for more information, refer to Creating Ethernet VLANs on Catalyst Switches Prerequisitesīefore attempting this configuration, please ensure that you meet the following prerequisites:
![default route to internet on router on a stick default route to internet on router on a stick](https://www.ccna6.com/wp-content/uploads/2020/02/ccna-2-modules-14-16-p22.png)
Before You Begin Conventionsįor more information on document conventions, see the Cisco Technical Tips Conventions.
#Default route to internet on router on a stick series#
For information on configuring inter-VLAN routing on a single Catalyst 3750 series switch, refer to Configuring Inter-VLAN Routing with Catalyst 3550 Series Switches.
![default route to internet on router on a stick default route to internet on router on a stick](https://drek4537l1klr.cloudfront.net/piper/Figures/15fig01_alt.jpg)
Configuring inter-VLAN routing on a single 3750 is the same as configuring this feature on a Catalyst 3550 series switch. The stack of Catalyst 3750s is also configured for a default route for all traffic going to the Internet with the next hop pointing to a Cisco 7200VXR router, which can be substituted by a firewall or other routers. The document uses a Catalyst 2950 series switch and a Catalyst 2948G switch as Layer 2 (L2) closet switches connecting to the stack of Catalyst 3750s. This document provides a sample configuration for inter-VLAN routing using two Catalyst 3750s series switches stacked together running EMI software in a typical network scenario.