question: private boolean matchAddress ( final byte [ ] remoteMask ) { if ( ruleType == RuleType . ALLWILDCARD ) { return true ; } if ( prefixMask == null ) { return false ; } if ( remoteMask . length != prefixMask . length ) { return false ; } for ( int i = 0 ; i < prefixMask . length ; i ++ ) { if ( ! wildCard . get ( i ) && ( ruleMask [ i ] & prefixMask [ i ] ) != ( remoteMask [ i ] & prefixMask [ i ] ) ) { return false ; } } return true ; }
target:  Try to match remote client address using prefix mask and rule mask.