This attempts to update logging statements to make them consistent
through out the code base. It also adds additional context to messages
where possible, simplifies messages, and updates level where necessary.
The Linux kernel is inconsistent about how devconf is configured for new
network namespaces between ipv4 and ipv6. The behavior can also be
controlled via net.core.devconf_inherit_init_net in Linux 5.1+ so make
sure to enable forwarding on all and default for both ipv6 and ipv4.
This issue first came up testing on a yocto kernel that had this patch:
ipv4: net namespace does not inherit network configurations
[0] https://www.kernel.org/doc/html/latest/admin-guide/sysctl/net.html#devconf-inherit-init-net
[1] https://lkml.org/lkml/2014/7/29/119
Signed-off-by: Brennan Ashton <brennana@jfrog.com>
