Cisco 3550 VLANs, Trunking & Routing
Posted on 2013-10-23
I have been tasked with creating the following scenario on a Cisco 3550. We are using all public address.
Setup Management VLAN with a /30
Setup 4 separate VLANs with a /29
VLAN Config :: (IP Addresses Changed to protect the innocent)
Management (VLAN1) 220.127.116.11/30
VLAN 3 :: 18.104.22.168/29 (Ports 5 - 9)
VLAN 4 :: 22.214.171.124/29 (Ports 10 - 14)
VLAN 5 :: 126.96.36.199/29 (Ports 15 - 19)
VLAN 6 :: 188.8.131.52/29 (Ports 20 - 24)
Port FA0/2 is the uplink to the service provider
So, my questions are these.
1. After configuring the switch for the VLANS. How do I trunk the VLANs out the the web?
a. Do I need to physically cross connect each VLAN to a VLAN that I create to trunk all traffic to the web?
b. Or is there a way to do this in the IOS?
2. I do not understand why they didn't just go with a /26 and leave all the Machines on 1 sub-net. What is the logic behind doing something like this with multiple sub-nets on a public switch?