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SubjectRe: 2.2.x kernels missend odd-sized ICMP packets
On Thu, 8 Apr 1999, Joey Hess wrote:

> I've noticed something exceedingly strange. 2.2.x kernels all seem to send
> out odd sized ICMP packets improperly.
>
> root@kite:/home/joey/prog>ping -qs 11 localhost
> PING localhost (127.0.0.1): 11 data bytes
>
On 2.2.5 it works fine. Maybe your `ping` is broken?

Ping to a Sun:

Script started on Fri Apr 9 08:33:28 1999
# ping -s 11 hal
PING hal.analogic.com (204.178.40.143): 11 data bytes
19 bytes from 204.178.40.143: icmp_seq=0 ttl=255 time=0.4 ms
19 bytes from 204.178.40.143: icmp_seq=1 ttl=255 time=0.3 ms
19 bytes from 204.178.40.143: icmp_seq=2 ttl=255 time=0.3 ms

--- hal.analogic.com ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 0.3/0.3/0.4 ms

Ping to another Linux machine:

# ping -s 11 quark
PING quark.analogic.com (204.178.40.236): 11 data bytes
19 bytes from 204.178.40.236: icmp_seq=0 ttl=255 time=0.4 ms
19 bytes from 204.178.40.236: icmp_seq=1 ttl=255 time=0.4 ms
19 bytes from 204.178.40.236: icmp_seq=2 ttl=255 time=0.4 ms

--- quark.analogic.com ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 0.4/0.4/0.4 ms

Ping to a Cisco router:

# ping -s 11 cisco
PING cisco.analogic.com (204.178.40.1): 11 data bytes
19 bytes from 204.178.40.1: icmp_seq=0 ttl=128 time=0.6 ms
19 bytes from 204.178.40.1: icmp_seq=1 ttl=128 time=0.3 ms
19 bytes from 204.178.40.1: icmp_seq=2 ttl=128 time=0.3 ms
19 bytes from 204.178.40.1: icmp_seq=3 ttl=128 time=0.3 ms

--- cisco.analogic.com ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 0.3/0.3/0.6 ms
# exit
Script done on Fri Apr 9 08:34:02 1999


Cheers,
Dick Johnson
***** FILE SYSTEM WAS MODIFIED *****
Penguin : Linux version 2.2.5 on an i686 machine (400.59 BogoMips).
Warning : It's hard to remain at the trailing edge of technology.


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