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-rw-r--r--net/ipv6/Kconfig16
1 files changed, 16 insertions, 0 deletions
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index 5728695b5449..4f7fe7270e37 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -201,6 +201,22 @@ config IPV6_TUNNEL
If unsure, say N.
+config IPV6_GRE
+ tristate "IPv6: GRE tunnel"
+ select IPV6_TUNNEL
+ ---help---
+ Tunneling means encapsulating data of one protocol type within
+ another protocol and sending it over a channel that understands the
+ encapsulating protocol. This particular tunneling driver implements
+ GRE (Generic Routing Encapsulation) and at this time allows
+ encapsulating of IPv4 or IPv6 over existing IPv6 infrastructure.
+ This driver is useful if the other endpoint is a Cisco router: Cisco
+ likes GRE much better than the other Linux tunneling driver ("IP
+ tunneling" above). In addition, GRE allows multicast redistribution
+ through the tunnel.
+
+ Saying M here will produce a module called ip6_gre. If unsure, say N.
+
config IPV6_MULTIPLE_TABLES
bool "IPv6: Multiple Routing Tables"
depends on EXPERIMENTAL