improve slirp4netns allow_host_loopback docs

The default ip is 10.0.2.2 but is always the second ip from the
slirp4netns subnet, which can be changed via the cidr option.

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=2090166

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

4 files changed, 4 insertions, 4 deletions

diff --git a/docs/source/markdown/podman-create.1.md.in b/docs/source/markdown/podman-create.1.md.in
index 54afe3b16..f94a767a9 100644
--- a/docs/source/markdown/podman-create.1.md.in
+++ b/docs/source/markdown/podman-create.1.md.in
@@ -302,7 +302,7 @@ Valid _mode_ values are:
 - **ns:**_path_: Path to a network namespace to join.
 - **private**: Create a new namespace for the container. This will use the **bridge** mode for rootful containers and **slirp4netns** for rootless ones.
 - **slirp4netns[:OPTIONS,...]**: use **slirp4netns**(1) to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options, they can also be set with `network_cmd_options` in containers.conf:
-  - **allow_host_loopback=true|false**: Allow the slirp4netns to reach the host loopback IP (`10.0.2.2`). Default is false.
+  - **allow_host_loopback=true|false**: Allow slirp4netns to reach the host loopback IP (default is 10.0.2.2 or the second IP from slirp4netns cidr subnet when changed, see the cidr option below). The default is false.
   - **mtu=MTU**: Specify the MTU to use for this network. (Default is `65520`).
   - **cidr=CIDR**: Specify ip range to use for this network. (Default is `10.0.2.0/24`).
   - **enable_ipv6=true|false**: Enable IPv6. Default is true. (Required for `outbound_addr6`).
diff --git a/docs/source/markdown/podman-kube-play.1.md.in b/docs/source/markdown/podman-kube-play.1.md.in
index e4e1199e6..3bbe8113a 100644
--- a/docs/source/markdown/podman-kube-play.1.md.in
+++ b/docs/source/markdown/podman-kube-play.1.md.in
@@ -187,7 +187,7 @@ Valid _mode_ values are:
 - **ns:**_path_: Path to a network namespace to join.
 - **private**: Create a new namespace for the container. This will use the **bridge** mode for rootful containers and **slirp4netns** for rootless ones.
 - **slirp4netns[:OPTIONS,...]**: use **slirp4netns**(1) to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options, they can also be set with `network_cmd_options` in containers.conf:
-  - **allow_host_loopback=true|false**: Allow the slirp4netns to reach the host loopback IP (`10.0.2.2`). Default is false.
+  - **allow_host_loopback=true|false**: Allow slirp4netns to reach the host loopback IP (default is 10.0.2.2 or the second IP from slirp4netns cidr subnet when changed, see the cidr option below). The default is false.
   - **mtu=MTU**: Specify the MTU to use for this network. (Default is `65520`).
   - **cidr=CIDR**: Specify ip range to use for this network. (Default is `10.0.2.0/24`).
   - **enable_ipv6=true|false**: Enable IPv6. Default is true. (Required for `outbound_addr6`).
diff --git a/docs/source/markdown/podman-pod-create.1.md.in b/docs/source/markdown/podman-pod-create.1.md.in
index 7a2a3c78d..bf4c57d49 100644
--- a/docs/source/markdown/podman-pod-create.1.md.in
+++ b/docs/source/markdown/podman-pod-create.1.md.in
@@ -145,7 +145,7 @@ Valid _mode_ values are:
 - **ns:**_path_: Path to a network namespace to join.
 - **private**: Create a new namespace for the container. This will use the **bridge** mode for rootful containers and **slirp4netns** for rootless ones.
 - **slirp4netns[:OPTIONS,...]**: use **slirp4netns**(1) to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options, they can also be set with `network_cmd_options` in containers.conf:
-  - **allow_host_loopback=true|false**: Allow the slirp4netns to reach the host loopback IP (`10.0.2.2`). Default is false.
+  - **allow_host_loopback=true|false**: Allow slirp4netns to reach the host loopback IP (default is 10.0.2.2 or the second IP from slirp4netns cidr subnet when changed, see the cidr option below). The default is false.
   - **mtu=MTU**: Specify the MTU to use for this network. (Default is `65520`).
   - **cidr=CIDR**: Specify ip range to use for this network. (Default is `10.0.2.0/24`).
   - **enable_ipv6=true|false**: Enable IPv6. Default is true. (Required for `outbound_addr6`).
diff --git a/docs/source/markdown/podman-run.1.md.in b/docs/source/markdown/podman-run.1.md.in
index fe947b1d0..1369b8963 100644
--- a/docs/source/markdown/podman-run.1.md.in
+++ b/docs/source/markdown/podman-run.1.md.in
@@ -322,7 +322,7 @@ Valid _mode_ values are:
 - **ns:**_path_: Path to a network namespace to join.
 - **private**: Create a new namespace for the container. This will use the **bridge** mode for rootful containers and **slirp4netns** for rootless ones.
 - **slirp4netns[:OPTIONS,...]**: use **slirp4netns**(1) to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options, they can also be set with `network_cmd_options` in containers.conf:
-  - **allow_host_loopback=true|false**: Allow the slirp4netns to reach the host loopback IP (`10.0.2.2`). Default is false.
+  - **allow_host_loopback=true|false**: Allow slirp4netns to reach the host loopback IP (default is 10.0.2.2 or the second IP from slirp4netns cidr subnet when changed, see the cidr option below). The default is false.
   - **mtu=MTU**: Specify the MTU to use for this network. (Default is `65520`).
   - **cidr=CIDR**: Specify ip range to use for this network. (Default is `10.0.2.0/24`).
   - **enable_ipv6=true|false**: Enable IPv6. Default is true. (Required for `outbound_addr6`).