When using the default SLIRP backend for <interface
type='user'>, the
<ip address='blah' prefix='blur'/> setting doesn't behave as
might be
expected (i.e. it doesn't set the guest interface IP/prefix to exactly
the provided values). This *should* have created questions when users
originally encountered it, but instead it has become more apparent as
people are contemplating switching from using the SLIRP backend to
using passt instead (with passt, the <ip> settings do behave "as
expected").
In order to make this difference in behavior less mysterious, Yalan
Zhang kindly took the time to test and document the effect of various
representative <ip> settings on guest interface config when SLIRP is
used (see
https://issues.redhat.com/browse/RHEL-46601); this patch
adds that same table to libvirt's documentation.
Signed-off-by: Laine Stump <laine(a)redhat.com>
---
docs/formatdomain.rst | 69 ++++++++++++++++++++++++++++++++++++-------
1 file changed, 58 insertions(+), 11 deletions(-)