Sophos XG Firewall placement

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CB_24

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# 240745 24-Sep-2018 10:27

Hey,

After some advice as to where I should place a new Sophos XG Firewall?

Currently I have the normal Unifi setup:

ISP Fibre ONT > USG WAN > USG LAN > Unifi Switch > rest of the internal network

To integrate the XG should I do

ISP Fibre ONT > USG WAN (VLAN10) > USG LAN > Sophos In > Sophos Out > Unifi Switch or

ISP Fibre ONT > (VLAN10) Sophos In > Sophos Out > USG WAN > USG LAN > Unifi Switch

I'd prefer to keep the connection to the ISP going through the USG first then onto Sophos if that's best.

I want to include the firewall to monitor the traffic deeper and restrict websites etc as the kids get older.

Thanks

cyril7

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# 2095350 24-Sep-2018 10:34

Any reason why you want to keep the USG in circuit, this seems odd. If you do keep it, ensure you route between them, not nat

Cyril

CB_24

279 posts

Ultimate Geek
+1 received by user: 15

# 2095531 24-Sep-2018 14:18

cyril7:

Any reason why you want to keep the USG in circuit, this seems odd. If you do keep it, ensure you route between them, not nat

Cyril

Mainly want to keep the USG as I have already invested in it and a great device, though it's limited with the firewall and web filtering ability.

From what I have seen it looks like its best to put the Sophos XG between the OTP and the Unifi Gateway.

cyril7

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# 2095538 24-Sep-2018 14:27

Well it depends who you want to do the NAT and firewalling, if it were me, I would drop the USG, but failing that I would use the Sophos simply as a content filter (and firewall as appropriate) for networks you want to protect (ie the kids) and therefore put it between the kids vlan and USG, ymmv :)

ie ONT > USG > Sophos > kids network

> responsible persons network

Cyril

CB_24

279 posts

Ultimate Geek
+1 received by user: 15

# 2095691 24-Sep-2018 17:59

Cheers

See any issue of putting the Sophos XG in between the ONT and Unifi USG and using the USG for authentication to the Internet? Basically passing through the XG or will it break auth until firewall rules are in place?

ONT > Sophos XG ( web filtering ) > USG WAN ( fibre auth ) > USG LAN > Switch

cyril7

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# 2095695 24-Sep-2018 18:03

Hi, your building a rod for you back and a good chance of creating a worse mess, get rid of one of the routers.

Cyril