enable ipv6 network configuration options

enable the ipv6 flag in podman network to be able to create
dual-stack networks for containers.

This is required to be compatible with docker, where --ipv6
really means dual stack.

podman, unlike docker, support IPv6 only containers since
07e3f1bba9674c0cb93a0fa260930bfebbf75728.

Signed-off-by: Antonio Ojea <aojea@redhat.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/docs/source/markdown/podman-network-create.1.md b/docs/source/markdown/podman-network-create.1.md
index 45d9d9b0b..0a7ea0586 100644
--- a/docs/source/markdown/podman-network-create.1.md
+++ b/docs/source/markdown/podman-network-create.1.md
@@ -49,6 +49,10 @@ Macvlan connection.
 
 The subnet in CIDR notation.
 
+**--ipv6**
+
+Enable IPv6 (Dual Stack) networking. You must pass a IPv6 subnet. The *subnet* option must be used with the *ipv6* option.
+
 ## EXAMPLE
 
 Create a network with no options
@@ -63,6 +67,13 @@ Create a network named *newnet* that uses *192.5.0.0/16* for its subnet.
 /etc/cni/net.d/newnet.conflist
 ```
 
+Create an IPv6 network named *newnetv6*, you must specify the subnet for this network, otherwise the command will fail.
+For this example, we use *2001:db8::/64* for its subnet.
+```
+# podman network create --subnet 2001:db8::/64 --ipv6 newnetv6
+/etc/cni/net.d/newnetv6.conflist
+```
+
 Create a network named *newnet* that uses *192.168.33.0/24* and defines a gateway as *192.168.133.3*
 ```
 # podman network create --subnet 192.168.33.0/24 --gateway 192.168.33.3 newnet