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Problem with RED tunnel between 2 UTM 9.4 (Home Edition)

Jean-François LAGARDE

Hi everybody,

I need your help because I have problems with configuring a RED tunnel between two UTM v9.4 (Home Edition) ...

It is very frustrating because it seems to work between the 2 UTM devices, but it doesn't seems to work with the other devices connected localy and remotely :


Just let me explain :

2 UTM devices :

- UTM A : 192.168.A.1 (local network LAN_A : 192.168.A.0/24)

- UTM B : 192.168.B.1 (local network LAN_B : 192.168.B.0/24)


The RED connnection is established with success :

- on UTM A : new interface called INTERFACE_B with static address 192.168.254.B

- on UTM B : new interface called INTERFACE_A with static address 192.168.254.A


then I've entered the following routing rules :

- on UTM A, a rule type "gateway route" created from remote network (LAN_B) through INTERFACE_B gateway (192.168.254.B)
- on UTM B, a rule type "gateway route" created from remote network (LAN_A) through INTERFACE_A gateway (192.168.254.A)


At  this step:
I can ping UTM B device from a PC connected on LAN_A (I can also acces to the WebAdmin console) ;-)
I can ping UTM A device from a PC connected on LAN_B (I can also acces to the WebAdmin console) ;-)


Then I've try to configure UTM firewall functions on both UTM devices but with no success :( using the following rules :
- Source : ANY
- Destination : ANY
- Service : ANY


But it doesn't seem to change anything :(

I can't access to any other remote devices through the RED tunnel except the UTM devices ... very strange ...

Any ideas ?
Thx

 

 



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  • 0

    Are your LAN_A and LAN_B subnets 192.168.A.0/24 and 192.168.B.0/24 a different subnet as your RED IP's 192.168.254.A and 192.168.254.B?

    BTW, masquerading IP-addresses for RFC1918 (non-routable private subnets) doesn't add any security, so I think it's better to just list them as they are.

    Managing several Sophos firewalls both at work and at some home locations, dedicated to continuously improve IT-security and feeling well helping others with their IT-security challenges.

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  • 0

    Are your LAN_A and LAN_B subnets 192.168.A.0/24 and 192.168.B.0/24 a different subnet as your RED IP's 192.168.254.A and 192.168.254.B?

    BTW, masquerading IP-addresses for RFC1918 (non-routable private subnets) doesn't add any security, so I think it's better to just list them as they are.

    Managing several Sophos firewalls both at work and at some home locations, dedicated to continuously improve IT-security and feeling well helping others with their IT-security challenges.

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