peplink Balance 30 - 10.4.2 Routing under GRE via IP Forwarding

PePLink Balance Series v4.0 User Manual
Page 42
10.4.2 Routing under GRE via IP Forwarding
The following figure shows a typical scenario with PePLink Balance under the GRE
connection mode and IP Forwarding routing mode:
RouterPePLink Balance
GRE Router
WAN IP Address
172.23.2.123
WAN Default
Gateway
172.23.2.122
Remote GRE
Host
172.23.254.87
Tunnel Local IP
Address
192.168.128.222
Tunnel Remote IP
Address
192.168.128.223
210.103.22.0/24
PePLink
Balance
LAN IP Address
210.103.22.1
Private
IP Network
In this scenario, the IP address settings are as follows:
 WAN IP Address: 172.23.2.123
 Default Gateway: 172.23.2.122
 Remote GRE IP address: 172.23.254.87 (the GRE router or host’s IP address)
 Tunnel IP remote address: 192.168.128.223 (IP address of remote end of tunnel)
 Tunnel IP local address: 192.168.128.222 (IP address of local end of tunnel)
 LAN IP Address: 210.103.22.1
The following figure shows the packet flow for PePLink Balance under GRE connection mode
and IP Forwarding routing mode: