[Question] DMZ setup #12

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opened 2020-06-23 15:46:24 +05:30 by drewmullen · 5 comments
drewmullen commented 2020-06-23 15:46:24 +05:30 (Migrated from github.com)

I am trying to setup a physical DMZ for my home network but not sure if its possible to allow external traffic to other interfaces. I'm curious if you've considered this or if you have advice.

My router has 4 ethernet ports so physical separation isnt a problem for me. In this circumstance though I'm open to setting up DMZ via VLANs if thats easier; I'm just not super familiar with those concepts so I opted for physical

OPNSense 20.1 - My current setup is by-the-book (readme docs hehe) except adding in the extra kernel mods

This is a great project, thank you for taking over!

I am trying to setup a physical DMZ for my home network but not sure if its possible to allow external traffic to other interfaces. I'm curious if you've considered this or if you have advice. My router has 4 ethernet ports so physical separation isnt a problem for me. In this circumstance though I'm open to setting up DMZ via VLANs if thats easier; I'm just not super familiar with those concepts so I opted for physical OPNSense 20.1 - My current setup is by-the-book (readme docs hehe) except adding in the [extra kernel mods](https://github.com/MonkWho/pfatt/issues/4) This is a great project, thank you for taking over!
drewmullen commented 2020-06-23 17:50:30 +05:30 (Migrated from github.com)

so traffic from my DMZ interface is working but im scratching my head has to how lol

question - what is the relationship between the LAN and WAN? i found in the screenshot below, auto-NAT configuration that looks to now include my DMZ network (im not sure if they existed before but i doubt it did).

i'd wager this 'auto rule' is how traffic from the new DMZ interface is getting outside

image

so traffic from my DMZ interface is working but im scratching my head has to how lol question - what is the relationship between the LAN and WAN? i found in the screenshot below, auto-NAT configuration that looks to now include my DMZ network (im not sure if they existed before but i doubt it did). i'd wager this 'auto rule' is how traffic from the new DMZ interface is getting outside ![image](https://user-images.githubusercontent.com/3812162/85402690-1b548800-b52a-11ea-880f-ff248e5cd95e.png)
maxfield-allison commented 2020-06-24 00:20:06 +05:30 (Migrated from github.com)

This is way outside the scope of this project. you should check opnsense forums for this https://forum.opnsense.org/

This is way outside the scope of this project. you should check opnsense forums for this https://forum.opnsense.org/
drewmullen commented 2020-06-24 01:56:10 +05:30 (Migrated from github.com)

@maxfield-allison maybe im not being clear - im not asking about how to setup a DMZ. i know how to do that

I'm curious about the implications of the pfatt vlan tagging / 802.1/X auth routing on other interfaces. frankly some of this project is magic to me so i was trying to ask about generally how are the interfaces effected by it

@maxfield-allison maybe im not being clear - im not asking about how to setup a DMZ. i know how to do that I'm curious about the implications of the pfatt vlan tagging / 802.1/X auth routing on other interfaces. frankly some of this project is magic to me so i was trying to ask about _generally_ how are the interfaces effected by it
maxfield-allison commented 2020-06-24 02:12:55 +05:30 (Migrated from github.com)

Gotchya. Other interfaces aren't affected at all. I have several physical interfaces and several VLANs and I haven't noticed any strange behavior. What this does is bridge your ont and gateway wan ports and only allow the gateway to communicate auth traffic. for the att ont to accept traffic, the bridge just tags everything with vlan 0 which is reserved anyway and not usually used in home networks.

Gotchya. Other interfaces aren't affected at all. I have several physical interfaces and several VLANs and I haven't noticed any strange behavior. What this does is bridge your ont and gateway wan ports and only allow the gateway to communicate auth traffic. for the att ont to accept traffic, the bridge just tags everything with vlan 0 which is reserved anyway and not usually used in home networks.
drewmullen commented 2020-06-24 06:18:08 +05:30 (Migrated from github.com)

Thanks!

Thanks!
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Reference: hhf/pfatt#12
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