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DHCP only serves on port 1

AdamBlunt

Ok I am having issues with Sophos XG again (what a surprise) hopefully it's not just me being an idiot like last time, but pretty sure I have done it all right this time.

The issue is this, I have setup sfos on a physical machine instead of the virtualbox machine I was testing with, and I have 3 interfaces on the physical box, LAN, WAN and Guest (for just internet etc)  but the built in DHCP server is not having any of this, I have made a new DHCP policy and assigned it to my guest port (port 3) and here comes the fun but annoying part.

It is serving IP's from my new DHCP policy which I set to listen on port 3 to devices on port 1, totally ignoring the port1 DHCP server that's already setup :|

But it don't stop there, port 3 has no response from DHCP, If I manually set the IP then it works fine, so not a connectivity issue just DHCP server ignoring my settings.

The seems to be very little information on using more than just a LAN and WAN interface, I am still confused as to why my devices on port 1 are getting IP's from the port 3 DHCP policy and not the port 1 policy, how is this even possible???



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  • 0 in reply to AdamBlunt

    Adam,

    On port 1, can you adjust the Subnet Mask? Now it is configured as /16. Is it correct?

  • 0 in reply to lferrara

    Yeah have tried it as /24 and still no dice, just tried it at /16 for some reason.

    Now port 3 is dead, as in I cant access the firewall or the internet when plugged into it even when I set an IP manually on the computer, I do have a policy setup to allow internet access on that port, same for admin access to the Sophos machine.


    I did the same thing in virtualbox btw and it worked like a charm but that was with the previous version, this new machine is running the latest patch, I doubt that has caused this though.

  • 0 in reply to AdamBlunt

    Ok Progress

    changing the port3 to 10.2.0.1 and doing same for dhcp has it working correctly

    Not sure why it wouldnt work with 10.0.2.x though as it worked fine in my vm system

  • 0 in reply to AdamBlunt

    Ok the issue was me being kinda an idiot again, the port 1 subnet was /16 which is why it worked when I changed port3 to 10.2.0.x

    Now got it working how I want after changing the subnet on port 1

    Hope my stupidity will help someone else on the forums :D