01-18-2018 06:35 PM - edited 03-08-2019 01:28 PM
Can i create smaller VLANs from a VLAN? and How to do that?
Ex: I use a multiple switch 1 to create 2 VLAN (vlan1 and vlan2) and assign 1 ip address to each VLAN (vlan1: 1.1.1.1/24, vlan2: 1.1.2.1.1/24). as demanding, I want to segment vlan2 into 10 smaller VLANs and then assign ip to them without any changes in multiple switch 1. use a different multiple switch?
Help me!
01-18-2018 06:50 PM
Generally, each VLAN needs a non-overlapping subnet - so you would need to change your IP addressing to introduce more VLANs.
Depending on your needs (and switches), you could consider using private vlans or private edge vlans.
01-18-2018 06:58 PM
Actually i am very new on this. i dont know about private vlan or edge vlan. i wana segment my ip 1.1.2.1/24 into 20 subnets (my need in practice) but i didn't search any exams about subneting without using vlan. could you give me a solution? thanks!
01-18-2018 06:59 PM
The task is too complicated to take on for a beginner. Ask a Cisco Partner for help.
https://locatr.cloudapps.cisco.com/WWChannels/LOCATR/openBasicSearch.do
01-18-2018 07:03 PM - edited 01-18-2018 07:20 PM
@Philip D'Ath Thanks for your help!
01-19-2018 02:42 AM - edited 01-19-2018 02:44 AM
Hello
@thienphongtran wrote:
Actually i am very new on this. i dont know about private vlan or edge vlan. i wana segment my ip 1.1.2.1/24 into 20 subnets (my need in practice) but i didn't search any exams about subneting without using vlan. could you give me a solution? thanks!
Once you have mastered subletting it quite a simple task to perform such calculation -I have attached a chart and a link for you to review and hopefully help you to begin to understand. review here
Now regarding your original query - Each subnet would have a related vlan, So you would have in total 20 vlans from the initial ip range of 1.1.2.0/24
This can be done by subnetting the 1.1.2.0/24 into 1.1.2.x/29 which will provide you with maximum of 32 subnets with 8 hosts within each subnet.
vlan 1 = 1.1.2.0 255.255.255.248 = /29
vlan 2 = 1.1.2.8 255.255.255.248 = /29
vlan 3 = 1.1.2.16 255.255.255.248 = /29
vlan 4 = 1.1.2.24 255.255.255.248 = /29
vlan 5 = 1.1.2.32 255.255.255.248 = /29
vlan 6 = 1.1.2.40 255.255.255.248 = /29
vlan 7 = 1.1.2.48 255.255.255.248 = /29
vlan 8 = 1.1.2.56 255.255.255.248 = /29
vlan 9 = 1.1.2.64 255.255.255.248 = /29
vlan 10 = 1.1.2.72 255.255.255.248 = /29
vlan 11 = 1.1.2.80 255.255.255.248 = /29
vlan 12 = 1.1.2.88 255.255.255.248 = /29
vlan 13 = 1.1.2.96 255.255.255.248 = /29
vlan 14 = 1.1.2.104 255.255.255.248 = /29
vlan 15 = 1.1.2.112 255.255.255.248 = /29
vlan 16 = 1.1.2.120 255.255.255.248 = /29
vlan 17 = 1.1.2.128 255.255.255.248 = /29
vlan 18 = 1.1.2.136 255.255.255.248 = /29
vlan19 = 1.1.2.144 255.255.255.248 = /29
vlan 20 = 1.1.2.152 255.255.255.248 = /29
vlan 21 = 1.1.2.160 255.255.255.248 = /29
vlan 22 = 1.1.2.168 255.255.255.248 = /29
vlan 23 = 1.1.2.176 255.255.255.248 = /29
vlan 24 = 1.1.2.184 255.255.255.248 = /29
vlan 25 = 1.1.2.192 255.255.255.248 = /29
vlan 26 = 1.1.2.200 255.255.255.248 = /29
vlan 27 = 1.1.2.208 255.255.255.248 = /29
vlan 28 = 1.1.2.216 255.255.255.248 = /29
vlan 29 = 1.1.2.224 255.255.255.248 = /29
vlan 30 = 1.1.2.232 255.255.255.248 = /29
vlan 31 = 1.1.2.240 255.255.255.248 = /29
vlan 32 = 1.1.2.248 255.255.255.248 = /29
res
Paul
01-21-2018 05:34 PM
@paul driver thanks for reply!
can i aks you somethings else?
I have a multiple switch to separate into 2 vlan(vlan1: 1.1.1.0/24 and vlan2: 1.1.2.0/24) and another multiple switch to separate vlan2 into 20 smaller vlans. as same with below(that i created):
if this model can operate, i wonder how to connect 2 multiple switchs?
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