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Cisco ASA - can't ping/trace icmp to IP in public IP block

snowdog_2112
snowdog_2112 asked
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Last Modified: 2015-01-12
IP block from ISP: x.y.z.32/28

ISP gateway: x.y.z.33
ASA outside: x.y.z.34

permit icmp any outside
access-list in.outside permit icmp any any
global policy: inspect icmp

I can do the following:
packet-tracer input outside icmp 4.4.2.2 8 0 x.y.z.34 detail

This, however, "DROP" by implicit rule - which goes to the implicit "deny any any""
packet-tracer input outside icmp 4.4.2.2 8 0 x.y.z.40 detail

This fails on every IP in the block except the actual IP on the interface.

What am I missing?
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