Standard ICMP return TTL values by OS

Here are the default TTL values of different devices / Operating Systems : Device / OS Version Protocol TTL AIX TCP 60 AIX UDP 30 AIX 3.2, 4.1 ICMP 255 BSDI BSD/OS 3.1 and 4.0 ICMP 255 Compa Tru64 v5.0 ICMP 64 Cisco ICMP 254 DEC Pathworks V5 TCP and UDP 30 Foundry ICMP 64 FreeBSD 2.1R […]

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