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Use additional address as VLAN gateway

I've got a primary LAN and a guest VLAN, and I want the guest VLAN to have a different external IP address. I've set the additional address up, as it can go through the same router as the primary one, but I can't see how I would tell the VLAN to use that address instead of the primary one.

Can anyone advise how to do this? This is on a UTM 9 appliance.

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BAlfson over 2 years ago +1

Josh, is this when using a browser through Web Filtering? See How to change the outgoing interface for Web Filtering . You can then use an Additional Address for a separate Web Filtering Profile. Other…

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0 Vivek Jagad over 2 years ago

Hello Josh Marchant,

Thank you for reaching out to the community, You must have a VLAN tagging switch hooked up to the UTM. At a minimum, the port connecting the UTM to the switch must be configured as a trunk port, and it must be a TAGGED member of each VLAN that you want the UTM to use.

Thanks & Regards,
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0 Josh Marchant over 2 years ago in reply to Vivek Jagad

Hi Vivek,

I do have a VLAN tagging switch hooked up to the UTM via a trunk port, however I'm still not clear on how to configure which additional IP address to use as a gateway,

Thanks
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0 Vivek Jagad over 2 years ago in reply to Josh Marchant

So you have created an Alias/Additional IP under Interfaces & Routing > Interfaces > Additional Addresses > for desired "On interface" And now you want to use that Alias/Additional IP as the the gateway for the Ethernet VLAN under Interfaces & Routing > Interfaces > new > type Ethernet VLAN, is that correct ?

Thanks & Regards,
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0 Josh Marchant over 2 years ago in reply to Vivek Jagad

That is correct yes
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0 Vivek Jagad over 2 years ago in reply to Josh Marchant

In that case , while create a VLAN:
https://support.sophos.com/support/s/article/KB-000034759?language=en_US

You have an option to to enable "IPv4 Default GW" their you can provide the gateway IP.

Thanks & Regards,
_______________________________________________________________

Vivek Jagad | Team Lead, Technical Support, Global Customer Experience

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0 Josh Marchant over 2 years ago in reply to Vivek Jagad

I did try that, but when using that it forces the VLAN to be added to uplink balancing which isn't what I want.
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0 Vivek Jagad over 2 years ago in reply to Josh Marchant

In that case Josh Marchant,

Did you check the option mentioned by BAlfson
KBA : https://support.sophos.com/support/s/article/KB-000036802?language=en_US

Thanks & Regards,
_______________________________________________________________

Vivek Jagad | Team Lead, Technical Support, Global Customer Experience

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0 Josh Marchant over 2 years ago in reply to Vivek Jagad

Unfortunately we don't use web filtering so our license does not include it. Is there no way to do this with static routes?
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0 Vivek Jagad over 2 years ago in reply to Josh Marchant

Adding a manual static may help but that wouldn't be reboot persistent...

Thanks & Regards,
_______________________________________________________________

Vivek Jagad | Team Lead, Technical Support, Global Customer Experience

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0 Vivek Jagad over 2 years ago in reply to Josh Marchant

Adding a manual static may help but that wouldn't be reboot persistent...

Thanks & Regards,
_______________________________________________________________

Vivek Jagad | Team Lead, Technical Support, Global Customer Experience

Log a Support Case | Sophos Service Guide
Best Practices – Support Case | Security Advisories
Compare Sophos next-gen Firewall | Fortune Favors the prepared
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