200-301 practice

200-301 practice.b. use the switchporttrunknativevlanvlan-id interface subcommand to set the local VLAN to the VLAN expected on the router. keep this long list for your reference. Next, let's look at a simple example of router configuration together. First, assume that the3.2 Basics 111previous site uses a VLAN,then the router configuration ignores VLAN trunking and configures the IP address on the physical LAN interface of the router. All hosts are located on the default VLAN1. The router can ignore the VLAN details, not use trunking, and be used as the default router for all hosts in VLAN 1, as shown in Figure 5-7.VLAN 1Figure 5-7 Router IP Address Configuration without Trunking Then management planned an expansion to start using a second VLAN. this company had a network engineer for the router and other engineers for the switch. When planning the change with the switch engineer, there was a bit of disagreement between the two engineers, and then the router engineer took the liberty of planning the router change. He planned the following changes using ROAS. Use ROAS on interface G0/1± to support users on the old subnet 10.1.3.0/26 in VLAN 1 and users on the new subnet 10.1.3.64/26 in VLAN 2. To support VLAN 1 users, retain the configuration of 10.1.3.3/26 on the physical interface. Because VLAN 1 is the default local VLAN,you can use this option to configure the local VLAN IP address on the physical interface.. Use the address 10.1.3.65/26 as the router IP address/mask in this subnet. add the ROAS subinterface to the router configuration to support VLAN 2. Figure 5-8 shows the above concept and configuration.VLAN 1 Interface G0/1 DefaultVLAN 2 Figure 5-8 Configuring Router IP Addresses Using ROAS and Local VLAN 1This configuration should have worked perfectly one as long as the switch had the correct, matching VLAN trunking configuration. The router configuration points to something about VLAN trunking, as shown below.With the IP address listed in physical interface G0/1, this configuration indicates that the router intends to use the local VLAN, sending and receiving untagged frames.