# Change default vlan1 **URL:** \ **Category:** cnMatrix\ **Created:** [March 8, 2023, 4:14pm UTC](https://community.cambiumnetworks.com/t/change-default-vlan1/91556 "2023-03-08T16:14:18Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Viet\_VU](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/viet_vu/32/27048_2.png) [@Viet\_VU](https://community.cambiumnetworks.com/u/Viet_VU)\ **Post date:** [March 8, 2023, 4:14pm UTC](https://community.cambiumnetworks.com/t/change-default-vlan1/91556/1 "2023-03-08T16:14:18Z")
Context - I need setup DHCP for vlan1 with 192.168.1.1 - 192.168.1.250 - And change default vlan1 to vlan100. So - Switch will have static IP : 192.168.100.2 - Router ( connect to internet ) : 192.168.100.1 - All connected device will have DHCP with 192.168.1 - 192.168.250 Is it possible ? Thank you, Viet VU ---
**Author:** ![PFR](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/pfr/32/19897_2.png) [@PFR](https://community.cambiumnetworks.com/u/PFR)\ **Post date:** [March 8, 2023, 6:55pm UTC](https://community.cambiumnetworks.com/t/change-default-vlan1/91556/2 "2023-03-08T18:55:35Z")
Yours router support vlans and nat ? ---
**Author:** ![TamN](https://d10gw3vjmzyp8.cloudfront.net/letter_avatar_proxy/v4/letter/t/f17d59/32.png) [@TamN](https://community.cambiumnetworks.com/u/TamN)\ **Post date:** [March 8, 2023, 9:59pm UTC](https://community.cambiumnetworks.com/t/change-default-vlan1/91556/3 "2023-03-08T21:59:41Z")
Hi Viet, Not sure I fully understand your requirement, but here is a config sample for VLAN 1 DHCP, and VLAN 100 management. Devices connected to VLAN 1 will use the VLAN 1’s ip address as their default gateway. Switch will send the default gateway, dns-server along with the DHCP IP address to the devices. I presume your internet router 192.168.100.1 will do NAT as cnMatrix does not support NAT. ```plaintext ! interface vlan 100 ip address 192.168.100.2 255.255.255.0 no shut exit ! ip route 0.0.0.0 0.0.0.0 192.168.100.1 ! interface vlan 1 no ip address ip address 192.168.1.1 255.255.255.0 ! service dhcp-server ! ip dhcp pool 1 network 192.168.1.2 255.255.255.0 192.168.1.250 default-router 192.168.1.1 dns-server 8.8.8.8 ``` ---
**Author:** ![Viet\_VU](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/viet_vu/32/27048_2.png) [@Viet\_VU](https://community.cambiumnetworks.com/u/Viet_VU)\ **Post date:** [March 9, 2023, 12:10am UTC](https://community.cambiumnetworks.com/t/change-default-vlan1/91556/4 "2023-03-09T00:10:38Z")
Yes. I’m uing EX 2028P ---
**Author:** ![Viet\_VU](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/viet_vu/32/27048_2.png) [@Viet\_VU](https://community.cambiumnetworks.com/u/Viet_VU)\ **Post date:** [March 9, 2023, 12:22am UTC](https://community.cambiumnetworks.com/t/change-default-vlan1/91556/5 "2023-03-09T00:22:46Z")
Thank you so much. Sorry about my lack of English. Let me try to explain again. What i have - Router : Draytek 3910 - Switch : EX 2028P What’s exactly i want to do - Turn off DHCP on Draytek 3910 and make it on switch What i have tried but not working - Draytek 3910 : 192.168.1.1 - EX 2028P : 192.168.1.3 - Static via IPv4 Quickstart with Default gateway 192.168.1.1 - Setup DHCP for Vlan1 on 2028P But look like this way is not working: - DHCP not working ( sometime yes / sometime not ) - Event if it’s working my devices can’t connect to Internet So i have tried - Create new VLAN100 192.168.100.x - This one totally working fine But … i usually use 192.168.1.x . All my hard config on Ubuntu, vmes used this range. Than i think - Create new VLAN100 and use it as “communication” between Switch & Router - Router 192.168.100.1 - Switch 192.168.100.2 with Active gateway 192.168.100.1 ( But i can’t this value. it’s always change to 192.168.100.0 or 0.0.0.0 instead 192.168.100.1 ) - And try to use vlan1 for DHCP. Any idea are really welcome. Thank you, Viet VU