Connect two Zywall USG60 with switch

relains

Hi,

I have a problem which I didn't anticipate would be a problem. I have two physical locations. My ISP connected two locations by fibre switch. I don't have both physical and remote management to this device. For me it works like unmanaged switch between this two locations.

In both locations I have Zyxel Zywall USG60 with their own Internet connection, DHCP server and local network. I want to connect this two Zywall's so that certain devices can connect with each other through this switch (by firewall rules).

The problem is that I can't configure it that the both DHCP servers won't interfere with each other. Please give me a hint what is the right way to do this.

Thanks in advance and have a nice day!

CHS

If fiber switch just like an unmanagement switch, then you can setup your own IP address on WAN2.
SiteA IP: 100.100.100.1, Mask: 255.255.255.252, Gateway: 100.100.100.2
SiteB IP: 100.100.100.2, Mask: 255.255.255.252, Gateway: 100.100.100.1

And then add policy route for them:
SiteA: Source: 192.168.1.0/24, Destination: 192.168.2.0/24, NextHOP: WAN2, SNAT: None.
SiteB.....vice versa

mMontana

IMVHO the fibre switch should be connected to WAN2 of both USG60. And a route should tell than Network 1 should be using WAN2 for reaching Network 2, and back.

CHS

Does ISP offers IP address to your sites which connected with fiber switch?

You can list IP addresses in your topology, then should much easier provide advice to you.

relains

mMontana said:

IMVHO the fibre switch should be connected to WAN2 of both USG60. And a route should tell than Network 1 should be using WAN2 for reaching Network 2, and back.

Yea, I tried something like this but devil is in the details. I spent over 2 hours today trying to get this work with policy route and static routes and nothing works.

CHS said:

Does ISP offers IP address to your sites which connected with fiber switch?

You can list IP addresses in your topology, then should much easier provide advice to you.

No, like i said it works like unmanaged switch between those two locations. My subnets with IP address are on the diagram.

mMontana

Ok, @relains, add an overhead. Set a Private IP address on both WAN2 interfaces. Then use them as outpoint for an IPsec tunnel. Also create a trunk without WAN2 on both USG60.

PeterUK

You need to setup a LAN2

site A on LAN1 192.168.1.0/24 gateway 192.168.1.1

LAN2 192.168.255.0/24 gateway 192.168.255.1

site B on LAN1 192.168.2.0/24 gateway 192.168.2.1

LAN2 192.168.255.0/24 gateway 192.168.255.2

You then need a static route rule on site A

Destination IP 192.168.2.0

subnet 255.255.255.0

gateway 192.168.255.2

You need a static route rule on site B

Destination IP 192.168.1.0

subnet 255.255.255.0

gateway 192.168.255.1

I think that should do it

and you will need some firewall rules from LAN1 to LAN2 and from LAN2 to LAN1

relains

Thanks @CHS - that do the trick