Functions
MoRoS ADSL 2.1 PRO
13.3.9
Configring GRE Tunnel
The Generic Routing Encapsulation protocol allows to transmit data transparently
through an existing connection without changing the original packets.
Configuration via the web interface
In order to enable a GRE tunnel, check in the menu "LAN (ext)" on the
page "GRE" the checkbox "Activate GRE tunnel".
Enter the remote tunnel terminal as IP address or domain name into the
"IP address or domain name of remote site" field.
Enter the own IP address that is to be used as tunnel end point into the
"Own IP address" field. This may be the WAN, VPN or local LAN address
for example.
Enter the IP address of the local tunnel end into the field "Tunnel address
local". A netmask can be specified optional here. In this case, an
appropriate route to this network will be created automatically, which
enables to access the tunnel address of the remote terminal for example.
In order to adjust the MTU (maximum permissible number of bytes in a
packet to be transmitted), change the entry in the entry respective field.
The default settings of MTU is suitable for most applications and does
not need to be modified usually.
If you want to specify a TTL (Time to Live), enter this into the "TTL (Time
to live)" field. If no TTL is specified, the TTL value from the tunneled
packet is used for the GRE packet.
In order to add a new route, enter in the section "Add new route" the
"IPv4 net address" and the "Netmask" as well as the "Gateway" into the
respective fields. All fields must be completed that a new route is taken
over into the table. Save the route by clicking "OK".
In order to delete an existing route, check under "Existing routes" the
checkbox of the route(s) to be deleted.
Save your settings by clicking "OK".
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