| Message Code | PIX-6-602101 |
| Severity | Information |
| Description | PMTU-D packet number bytes greater than effective mtu number dest_addr=dest_address, src_addr=source_address, prot=protocol |
| Explanation | This message occurs when the Cisco ASA sends an ICMP destination unreachable message and when fragmentation is needed, but the “don’t-fragment” bit is set. |
| User Action | Ensure that the data is sent correctly. |
| Reference Links |
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