Merge pull request #46 from johnthacker/sll_linktypes_gre6

LINKTYPE_LINUX_{SLL,SLL2}: ARPHRD_IP6GRE uses GRE protocol types as well

Author: guyharris

htmlsrc/linktypes/LINKTYPE_LINUX_SLL.html

@@ -69,8 +69,9 @@ <h3 class="subtitle">Description</h3>
 being the Netlink protocol type.
 </p>
 <p>
-If the <code>ARPHRD_</code> type is <code>ARPHRD_IPGRE</code> (778), the protocol type field
-contains a <a class=away href="https://datatracker.ietf.org/doc/html/rfc2784">GRE</a>
+If the <code>ARPHRD_</code> type is <code>ARPHRD_IPGRE</code> (778) or
+<code>ARPHRD_IP6GRE</code> (823), the protocol type field contains a
+<a class=away href="https://datatracker.ietf.org/doc/html/rfc2784">GRE</a>
 protocol type for the payload.
 </p>
 <p>

htmlsrc/linktypes/LINKTYPE_LINUX_SLL2.html

@@ -80,8 +80,9 @@ <h3 class="subtitle">Description</h3>
 being the Netlink protocol type.
 </p>
 <p>
-If the <code>ARPHRD_</code> type is <code>ARPHRD_IPGRE</code> (778), the protocol type field
-contains a <a class=away href="https://datatracker.ietf.org/doc/html/rfc2784">GRE</a>
+If the <code>ARPHRD_</code> type is <code>ARPHRD_IPGRE</code> (778) or
+<code>ARPHRD_IP6GRE</code> (823), the protocol type field contains a
+<a class=away href="https://datatracker.ietf.org/doc/html/rfc2784">GRE</a>
 protocol type for the payload.
 </p>
 <p>

linktypes/LINKTYPE_LINUX_SLL.html

@@ -113,8 +113,9 @@ <h3 class="subtitle">Description</h3>
 being the Netlink protocol type.
 </p>
 <p>
-If the <code>ARPHRD_</code> type is <code>ARPHRD_IPGRE</code> (778), the protocol type field
-contains a <a class=away href="https://datatracker.ietf.org/doc/html/rfc2784">GRE</a>
+If the <code>ARPHRD_</code> type is <code>ARPHRD_IPGRE</code> (778) or
+<code>ARPHRD_IP6GRE</code> (823), the protocol type field contains a
+<a class=away href="https://datatracker.ietf.org/doc/html/rfc2784">GRE</a>
 protocol type for the payload.
 </p>
 <p>

linktypes/LINKTYPE_LINUX_SLL2.html

@@ -124,8 +124,9 @@ <h3 class="subtitle">Description</h3>
 being the Netlink protocol type.
 </p>
 <p>
-If the <code>ARPHRD_</code> type is <code>ARPHRD_IPGRE</code> (778), the protocol type field
-contains a <a class=away href="https://datatracker.ietf.org/doc/html/rfc2784">GRE</a>
+If the <code>ARPHRD_</code> type is <code>ARPHRD_IPGRE</code> (778) or
+<code>ARPHRD_IP6GRE</code> (823), the protocol type field contains a
+<a class=away href="https://datatracker.ietf.org/doc/html/rfc2784">GRE</a>
 protocol type for the payload.
 </p>
 <p>