【多选题】
A <{p}>Put HQ into NSSA area 1 with the ABRs injecting an O N2 default into it<{br/}><{/p}>
B <{p}>Have r12 inject an O N1 default route with the P bit cleared<{br/}><{/p}>
C <{p}>Have r12 inject an O IA default route with low metric<{br/}><{/p}>
D <{p}>Have r12 inject an O N1 default route with the P bit set<{br/}><{/p}>
E <{p}>Put HQ into NSSA TS area 1 with the ABRs injecting an O E default routewith a high metric into it<{br/}><{/p}>
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