only gateway can access thru sslvpn

Hi Expert,

I have sucessed build a sslvpn thru 2 Sophos UTM9,
rules are as below :

firewall 1 is the server and firewall 2 is the client;
firewall 1 to firewall 2:
Attachment 10627
firewall 2 to firewall 1:
Attachment 10628

I have assign 192.168.81.6 for "Use static virtual IP address" at firewall 1
I can login to firewall 2's Sophos ie: https://192.168.11.26:4444,
and the network behind firewall 2 can ping the firewall 1 gateway: ie: ping 192.168.81.6

The problem is:
the network behind firewall can only ping the firewall 1 gateway but cannnot ping (or RTP) and computer behind the firewall 1 : ie: 192.168.81.88

Have I miss something important ?
Thx for advice,
Jessie

Attached Images

	fw1tofw2.jpg (34.9 KB)
	fw2tofw1.jpg (35.9 KB)