You need an IP address on Vlan 2 on Switch 2 for that to work. If only Switch1 is a Layer 3 switch, you need a common management network on both switches, which can be Vlan 2. If you have both as Layer 3, the default gateways need to be configured on the directly connected switches. To accomplish this, the following command is important to instruct the router to treat the loopback address as the VPN endpoint. Vrf 'test' is being distributed by BGP route reflector, it. 'Because the public IP is defined in the loopback interface, it must be our VPN endpoint. I am trying to ping them, but I can only ping 33.11 and 33.33. We have created a loopback 99 with an IP address on each switch: switch 1 - 10.12.33.11/32, switch 2 - 33.22/32, switch 3 - 33.33/32, switch 4 - 33.44/32 with vrf 'test'. This config gives you connectivity between the SVI for VLAN 20 and the loopback on A. You need to decide if you want one or both switches to be Layer 3. We want to use loopback 99 for managent for switches. Username cisco privilege 15 password 7 0822455D0A16 No service timestamps debug datetime msec Below are the working configs if only Switch1 is Layer 3: In order to remove the loopback interface, use the no interface loopback 1 in config mode.You need to decide if you want one or both switches to be Layer 3. When you have a Layer 3 switch, like a Catalyst 4500,6500,3550 or 3750, to configure loopback interface from the config mode, complete these steps: The management vlan of the switch acts like the loopback interface since they are both logical interfaces. The command used to indicate a loopback interface is: neighbor ip-address update-source interface The following example should illustrate the use of this command. Ethernet adapter MS-loopback-adapter: Connection-specific DNS Suffix. The neighbor router needs to tell BGP that it is using a loopback interface rather than a physical interface to initiate the BGP neighbor TCP connection. The Layer 2 switches like 3500xl or 2950, the loopback interface is not needed since these switches are not capable of routing between interfaces. An nmap scan from this same host, with target set to its default gateway of 10.10.10.252 says that we have a Cisco router (but I dont have physical access to know what model it is). Currently, I am able to ping the loopback interface on switch 1 but not on switch 2 from any computer in the 2 VLANS i created. Loopback interfaces do not have internal VLAN IDs or MAC addresses. Im trying to configure loopback interfaces on (2) 3560 Multilayer switches that i can ping from any computer. There is no limit on the number of loopback interfaces you can create. This is an issue in networks with multiple equal-cost paths because under normal circumstances the packets that are generated by a networking device use the IP address from the outbound interface as the source address for the packets and because in a network with two or more equal-cost paths from the networking device to the receiving host each packet might use a different outbound interface. This address can be configured as the source address when the networking device needs to send data for protocols such as NetFlow,OSPF or Cisco Discovery Protocol (CDP) to another device in your network and you want the receiving device to always see the same source IP address from the networking device. A loopback interface is a software only interface in the router (MSFC) and it does not. The IP address of the NAM will also have to be falling under the same vlan. A loopback interface can provide a stable interface on which you can assign a Layer 3 address. I think you definitely need to point the default gateway as the ip address of the management vlan (vlan 1 or X if its something else other than vlan 1).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |