19 Jan
2026
19 Jan
'26
10:08 a.m.
On Fri, 16 Jan 2026 11:25:09 +0800
Yumei Huang
This patch introduces a mode where we only forward loopback connections and traffic between two namespaces (via the loopback interface, 'lo'), without a tap device.
It might be used to fix up podman IPv4 / IPv6 loopback mapping when using rootlesskit for forwarding ports, or a way to implement isolated containers.
In this mode, --host-lo-to-ns-lo and --no-icmp are automatically enabled. Option --no-splice is rejected.
Link: https://bugs.passt.top/show_bug.cgi?id=149 Signed-off-by: Yumei Huang
Applied. -- Stefano