Ping output doesn't have TTL= in a successful ping

[foxidrive]

Just a comment on the display output from ping.exe

The ping command, when using computername, doesn't include "TTL=" even though it is successful - which is a new behaviour on me.

It does include TTL= when using the IPV4 IP address in the ping command but not with IPV6 IP address

Maybe this is an IPV6 change - I haven't tested it much - but if so then I fear it breaks some common ping code

Tested in Windows 8.1 32 bit.

Code: Select all

c:\>ping localhost

Pinging PC [::1] with 32 bytes of data:
Reply from ::1: time<1ms
Reply from ::1: time<1ms
Reply from ::1: time<1ms
Reply from ::1: time<1ms

Ping statistics for ::1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

Code: Select all

c:\>ping PC

Pinging PC [fe80::a15:b08:f88f:a5e2%3] with 32 bytes of data:
Reply from fe80::a15:b08:f88f:a5e2%3: time<1ms
Reply from fe80::a15:b08:f88f:a5e2%3: time<1ms
Reply from fe80::a15:b08:f88f:a5e2%3: time<1ms
Reply from fe80::a15:b08:f88f:a5e2%3: time<1ms

Ping statistics for fe80::a15:b08:f88f:a5e2%3:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

With IPV4 address:

Code: Select all

c:\>ping 192.168.1.03

Pinging 192.168.1.03 with 32 bytes of data:
Reply from 192.168.1.03: bytes=32 time<1ms TTL=128
Reply from 192.168.1.03: bytes=32 time<1ms TTL=128
Reply from 192.168.1.03: bytes=32 time<1ms TTL=128
Reply from 192.168.1.03: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.03:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

[ShadowThief]

It looks like Windows 8 defaults to using ping -6 instead of ping -4, which makes sense with the push to move to IPv6.

[foxidrive]

I've tested Vista and Windows 7 in a VM and they also use IPV6 - which is possibly because my Router is IPV6 capable.

[ShadowThief]

My Windows 7 defaults to IPv4. I wonder if there's a system setting somewhere.