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English Forums => General Discussion => Topic started by: meazz1 on April 25, 2020, 04:49:52 AM

Title: Firewall rules for guest and IoT Vlans
Post by: meazz1 on April 25, 2020, 04:49:52 AM
I have configured 3 VLANS, ID4, ID10 & ID20.
Default LAN 192.168.1.0/24= management
ID4 192.168.4.0/24=Home LAN
ID10 192.168.10/0/24=guest
ID20 10.0.20.0/24=IOT devices

For the default and home lan I will using the default fw rules.
I like to create a rule for guest and IOT no to have any access to the lan resource but only to internet.
I have attached few screenshots, I would really appreciate if someone can tell me what changes I need to tweak to block the access.

(https://lh3.googleusercontent.com/c9nnpMA3iPnWh4wVnX9kWVhAZiIaR2qfDUzBVcFY6DYnPTFRtGQtnGy_WjUsNzsexCPdtuN4Yz9zm1DxidSrFI8L_7LvJ4pGb8CsU-sNNYt9dR967IzIku6MxjClx_RXkkXH25Yb=w2400)

(https://lh3.googleusercontent.com/52XHVYkOxPVBb3O2svcbdi2mCliFOW8Ca4wzXCPfCDTLDeo1mH54ac72hxndE0CwBIoTEQo8yhsZWB20lMLh5OolqMjYvOhtNbcL82CI7ATzz1aBcqkhaelPrc0wnl5hBr9krE_f=w2400)

(https://lh3.googleusercontent.com/iRBVhJkAVgn6Z50KQmw26QbcGuG9TWmq76f1HiBq0EjkUBih1ncP9Uf-51MOVUI8CNam_HBK0tzVRWxnI6BqUBAskB10XsMdoo0smiRufk6NuhFRSjJq7I-J00SyRxXnBEDaAoy6=w2400)

Title: Re: Firewall rules for guest and IoT Vlans
Post by: hbc on April 25, 2020, 08:36:18 AM
Just create an alias with all RFC1918 networks:

Add at the end of guest and iot rules add:

Or make it one rule with:
allow dst not RFC1918

This example assumes you are not using any public ips for lan and no IPv6.
Title: Re: Firewall rules for guest and IoT Vlans
Post by: meazz1 on May 02, 2020, 05:37:40 PM
Quote from: hbc on April 25, 2020, 08:36:18 AM
Just create an alias with all RFC1918 networks:

  • 192.168.0.0/16
  • 172.16.0.0/12
  • 10.0.0.0/8

Add at the end of guest and iot rules add:

  • block dst RFC1918
  • allow dst all

Or make it one rule with:
allow dst not RFC1918

This example assumes you are not using any public ips for lan and no IPv6.

Thanks, works out lovely!!