This update fixes the following issues for shorewall:
- Update to 4.5.6 For more details see changelog.txt and releasenotes.txt
* This release includes the defect repairs from Shorewall 4.5.5.1 through 4.5.5.4.
* Previously, the tcrules file was not processed when TC_ENABLED=No. That meant that to use features like TPROXY, it was necessary to set TC_ENABLED=Yes and create a dummy /etc/shorewall/tcstart file. Now, only MANGLE_ENABLED=Yes is required.

- Update to 4.5.5.3 For more details see changelog.txt and releasenotes.txt
* When logical interface names were used, an entry in tcrules that included a classid could result in the compiler failing with this Perl diagnostic:
- Can't use an undefined value as an ARRAY reference at /usr/share/shorewall/Shorewall/Tc.pm line nnn, $currentfile line 20.