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tunnel: correct spelling and grammar

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(cherry picked from commit 8f63c885d677cae778cdf2f7b28665e4e498fdf0)
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rebortg 2021-07-09 21:37:58 +02:00
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docs/configuration/interfaces/tunnel.rst
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@ -1,3 +1,5 @@
:lastproofread: 2021-07-09
.. _tunnel-interface:
Tunnel
@ -99,8 +101,8 @@ A full example of a Tunnelbroker.net config can be found at
Generic Routing Encapsulation (GRE)
-----------------------------------
A GRE tunnel operates at layer 3 of the OSI model and is repsented by IP
protocol 47.The main benefit of a GRE tunnel is that you are able to carry
A GRE tunnel operates at layer 3 of the OSI model and is represented by IP
protocol 47. The main benefit of a GRE tunnel is that you are able to carry
multiple protocols inside the same tunnel. GRE also supports multicast traffic
and supports routing protocols that leverage multicast to form neighbor
adjacencies.
@ -113,11 +115,11 @@ Configuration
^^^^^^^^^^^^^
A basic configuration requires a tunnel source (local-ip), a tunnel destination
(remote-ip), an encapsulation type (gre), and an address (ipv4/ipv6).Below is a
(remote-ip), an encapsulation type (gre), and an address (ipv4/ipv6). Below is a
basic IPv4 only configuration example taken from a VyOS router and a Cisco IOS
router. The main difference between these two configurations is that VyOS
requires you explicitly configure the encapsulation type. The Cisco router
defaults to gre ip otherwise it would have to be configured as well.
defaults to GRE IP otherwise it would have to be configured as well.
**VyOS Router:**
@ -225,7 +227,7 @@ GRE is a well defined standard that is common in most networks. While not
inherently difficult to configure there are a couple of things to keep in mind
to make sure the configuration performs as expected. A common cause for GRE
tunnels to fail to come up correctly include ACL or Firewall configurations
that are discarding IP protocol 47 or blocking your source/desintation traffic.
that are discarding IP protocol 47 or blocking your source/destination traffic.
**1. Confirm IP connectivity between tunnel local-ip and remote-ip:**