I am having a problem with the amount of bandwidth being used by a VPN tunnel from the office to the hosting location and loss of connectivity.
Our office uses a Sonicwall PRO 1260 Enhanced
The Host UTM is an ASG120 with FullGuard subscription.
I have an IPSEC VPN tunnel to the Sophos using IP addresses as the VPN ID.
I used the AES-256 policy to match the the Sonicwall and setup these policies:
IKE: Auth PSK / Enc AES_CBC_256 / Hash HMAC_SHA1 / Lifetime 28800s / DPD
ESP: Enc AES_CBC_256 / Hash HMAC_SHA1 / Lifetime 28800s
The problems that I am seeing is that it tends to lose it's connection regularly on the UTM side (I recieve failure messages usually once a day) and whenever a Hyper-V Manager connects across the tunnel, it uses about 1.5 MB/minute of data use just sitting open. When activating a Hyper-V remote session to connect, run an ipconfig and disconnect, I just used 56 MB of data in less than 30 seconds.
Is this a common issue or do I have a configuration issue that needs to be updated?
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