Difference between revisions of "Template:Networking rut9xx manual vpn gre"

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(Created page with "<b>Generic Routing Encapsulation</b> (<b>GRE</b>) is a tunneling protocol used to establish point-to-point connections between remote private networks. GRE tunnels encapsulate...")
 
 
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==GRE Tunnel==
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<b>Generic Routing Encapsulation</b> (<b>GRE</b>) is a tunneling protocol used to establish point-to-point connections between remote private networks. GRE tunnels encapsulate data packets in order to route other protocols over IP networks.
 
<b>Generic Routing Encapsulation</b> (<b>GRE</b>) is a tunneling protocol used to establish point-to-point connections between remote private networks. GRE tunnels encapsulate data packets in order to route other protocols over IP networks.
  
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To begin configuration, click the 'Edit' button located next to the instance. Refer to the figure and table below for information on the fields located in the GRE Tunnel instance configuration section.
 
To begin configuration, click the 'Edit' button located next to the instance. Refer to the figure and table below for information on the fields located in the GRE Tunnel instance configuration section.
  
[[File:{{{file_gre_config_main}}}]]
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[[File:Networking_rut_vpn_gre_gre_configuration_main_settings.png|border|class=tlt-border]]
  
 
<table class="nd-mantable">
 
<table class="nd-mantable">
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         <td>netmask; default: <b>none</b></td>
 
         <td>netmask; default: <b>none</b></td>
 
         <td>Subnet mask of the local GRE Tunnel network interface.</td>
 
         <td>Subnet mask of the local GRE Tunnel network interface.</td>
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    </tr>
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    <tr>
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    <td>Bind to SIM</td>
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        <td>None | SIM1 | SIM2; default: <b>None</b></td>
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        <td>Specifies whether to bind instance to a SIM card.</td>
 
     </tr>
 
     </tr>
 
</table>
 
</table>

Latest revision as of 14:03, 3 June 2021

GRE Tunnel[edit source]

Generic Routing Encapsulation (GRE) is a tunneling protocol used to establish point-to-point connections between remote private networks. GRE tunnels encapsulate data packets in order to route other protocols over IP networks.

GRE: main & tunnel settings[edit source]


To create a new GRE Tunnel instance, go to the Services → VPN → GRE Tunnel section, enter a custom name and click the 'Add' button. A GRE instance with the given name will appear in the "GRE Configuration" list.

To begin configuration, click the 'Edit' button located next to the instance. Refer to the figure and table below for information on the fields located in the GRE Tunnel instance configuration section.

Networking rut vpn gre gre configuration main settings.png

Field Value Description
Enabled yes | no; default: no Turns the GRE Tunnel instance on or off.
Tunnel source network interface; default: none Network interface used to establish the GRE Tunnel.
Remote endpoint IP address ip; default: none External IP address of another GRE instance used to establish the initial connection between peers.
MTU integer; default: 1476 Sets the maximum transmission unit (MTU) size. It is the largest size of a protocol data unit (PDU) that can be transmitted in a single network layer transaction.
TTL integer [0..255]; default: 255 Sets a custom TTL (Time to Live) value for encapsulated packets. TTL is a field in the IP packet header which is initially set by the sender and decreased by 1 on each hop. When it reaches 0 it is dropped and the last host to receive the packet sends an ICMP "Time Exceeded" message back to the source.
Outbound key integer [0..65535]; default: none A key used to identify outgoing packets. A This value should match the "Inbound key" value set on the opposite GRE instance or both key values should be omitted on both sides.
Inbound key integer [0..65535]; default: none A key used to identify incoming packets. This value should match the "Outbound key" value set on the opposite GRE instance or both key values should be omitted on both sides.
Don't fragment yes | no; default: yes When unchecked, sets the nopmtudisc option for tunnel. Can not be used together with the TTL option.
Keep alive yes | no; default: no Turns "keep alive" on or off. The "keep alive" feature sends packets to the remote instance in order to determine the health of the connection. If no response is received, the device will attempt to re-establish the tunnel.
Keep alive interval integer [0..255]; default: none Frequency (in seconds) at which "keep alive" packets are sent to the remote instance.
Local GRE interface IP address ip; default: none IP address of the local GRE Tunnel network interface.
Local GRE interface netmask netmask; default: none Subnet mask of the local GRE Tunnel network interface.
Bind to SIM None | SIM1 | SIM2; default: None Specifies whether to bind instance to a SIM card.

GRE: routing settings[edit source]


Routing settings are used to configure routes to networks that are behind the device that hosts the opposite GRE instance. To add a new route, simply click the 'Add' button. For information on configuring the route refer to the figure and table below.

[[File:{{{file_gre_config_routing}}}]]

Field Value Description
Remote subnet IP address ip; default: none IP address of the network behind the device that hosts the remote GRE instance.
Remote subnet netmask netmask; default: none Subnet mask of the network behind the device that hosts the remote GRE instance.