HP VPN Firewall Appliances VPN Configuration Guide

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Figure 21 P2MP GRE tunnel interface management page
2. Click Add to add a P2MP GRE tunnel interface.
Figure 22 Adding a P2MP GRE tunnel interface
3. Configure the P2MP GRE tunnel interface as described in Table 2.
4. Click Apply.
Table 2 Configuration items
Item Descri
p
tion
Tunnel Interface Specify the number of the tunnel interface.
IP/Mask
Specify the IP address and subnet mask of the tunnel interface.
IMPORTANT:
When you configure a static route on the tunnel interface, make sure the destination
IP address of the static route is not be in the subnet of the tunnel interface.
Zone Specify the security zone to which the tunnel interface belongs.
Tunnel Source
IP/Interface
Specify the source IP address for the tunnel interface.
You can input an IP address or select an interface. In the latter case, the primary IP
address of the interface will be used as the tunnel source address.
You must configure a source address on a P2MP GRE tunnel interface. Two or more
P2MP GRE tunnel interfaces cannot share the same source address.
On each branch node, you must configure the destination address of the GRE over
IPv4 tunnel interface as the source address of the P2MP GRE tunnel interface.