Join us in congratulating October's Spotlight Award Winners! Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for. Search instead for. Did you mean:. All Community This category This board. Hi, I want to buy an ISR router. Labels: Labels: Other Switching. I have this problem too. All forum topics Previous Topic Next Topic.
Accepted Solutions. David Johan Castro Fernandez. In response to CSCO Hello Nurul, The maximum number of interfaces physical, subinterface , or virtual a router can handle depends on the maximum number of SWIDBs that the router can use. This limit used to be set to for all platforms, but with the emergence of features such as frame-relay subinterfaces, multilink Point-to-Point Protocol PPP , and virtual private dial-up network VPDN that uses virtual interfaces, this value has proven to be insufficient on some platforms Maximum Number of interfaces Every interface uses an IDB.
David castro Regards,. In response to David Johan Castro Fernandez. Inter-VLAN routing is an essential concept for anyone who has the passion for networking. It is the convenient and better way to subdivide a large LAN and to enable communication between the network hosts.
You can find more information about inter vlan routing here. His interests are web development and networking. Dennis has a great passion for developing web applications and configuring networks.
Discover Section's community-generated pool of resources from the next generation of engineers. The simple, flexible deployment options your customers expect with the low overhead your team craves. For Infrastructure Providers. Simple, centralized, intelligent management of distributed compute locations on massive scale. Default Gateway is a device that forwards IP packets and provides an access point to the other networks. For instance, a router.
Access Point is a network device that connects to a router or switch, creating a wireless local area network and acting as a link between the router and the network users. Switch port refers to a physical opening on the switch or router where ethernet cables can be plugged. Router Interface refers to a path that enables the router to connect to the network.
Hence, adding additional network cables and improving infrastructure is more expensive. Create the management interface. Step 3. Configure access ports. Assume PC1 has been configured with the correct IP address and default gateway. Step 4. Configure trunking ports.
The subinterface syntax is the physical interface followed by a period and a subinterface number. Although not required, it is customary to match the subinterface number with the VLAN number. This address typically serves as the default gateway for the identified VLAN. Repeat the process for each VLAN to be routed. Each router subinterface must be assigned an IP address on a unique subnet for routing to occur.
When all subinterfaces have been created, enable the physical interface using the no shutdown interface configuration command. If the physical interface is disabled, all subinterfaces are disabled. The router-on-a-stick configuration is complete after the switch trunk and the router subinterfaces have been configured.
The configuration can be verified from the hosts, router, and switch. From a host, verify connectivity to a host in another VLAN using the ping command. It is a good idea to first verify the current host IP configuration using the ipconfig Windows host command, as shown in Example The output confirms the IPv4 address and default gateway of PC1.
Next, use ping to verify connectivity with PC2 and S1, as shown in Figure In addition to using ping between devices, the following show commands can be used to verify and troubleshoot the router-on-a-stick configuration.
As shown in Example , verify that the subinterfaces are appearing in the routing table of R1 by using the show ip route command. Notice that there are three connected routes C and their respective exit interfaces for each routable VLAN.
The output confirms that the correct subnets, VLANs, and subinterfaces are active. Another useful router command is show ip interface brief , as shown in Example The output confirms that the subinterfaces have the correct IPv4 address configured, and that they are operational. Subinterfaces can be verified using the show interfaces subinterface-id command, as shown in Example The misconfiguration could also be on the trunking port of the switch.
Therefore, it is also useful to verify the active trunk links on a Layer 2 switch by using the show interfaces trunk command, as shown in Example Although VLAN 1 was not explicitly configured, it was automatically included because control traffic on trunk links will always be forwarded on VLAN 1. Finally, you enable trunking and verify connectivity between VLANs. I would like to receive exclusive offers and hear about products from Cisco Press and its family of brands. I can unsubscribe at any time.
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