Fragmented ping makes OSR5 reboot

Fragmented ping makes OSR5 reboot

Post by John W. Templ » Sun, 10 Nov 1996 04:00:00

I was testing my OSR5 servers to see if they were vulnerable to the
fragmented ping bug; one of them was not affected, while one of them
rebooted both times I tried it.  Both servers are running on Compaqs,
and both have net100 applied.  The only difference between them that I
can think would matter here is the network adapters.  The one that's
not affected is using the Compaq built-in adapter with Compaq's driver,
while the one that reboots is using an SMC 8013EWC with the
OSR5-supplied driver.  The Compaq driver requires a 4096 byte
STRMAXBLK; could using that value on the other system fix the problem?
John W. Temples, III       ||       Providing the first public access Internet
Gulfnet Kuwait             ||            site in the Arabian Gulf region


1. ping problem - only one ping made although -c option

Hi !

Another strange issue on my linux box...
When i do a "ping", it always transmits only _one_ packet
and then "hangs", I'll have to CTRL-C out to stop it.

It doesn't matter at all if i specify the -c option or not...
Its very likely that i messed up something on my box, because
that problem wasn't there a few weeks ago.

(I had some problems with shared libraries, maybe thats
where to start searching ?)


Centaur:/var/named # ping localhost -c 50
PING localhost ( 56 data bytes
64 bytes from icmp_seq=0 ttl=255 time=0.431 ms

--> no more packets here....after a few minutes CTRL-C'ing out:

--- localhost ping statistics ---
1 packets transmitted, 1 packets received, 0% packet loss
round-trip min/avg/max = 0.431/0.431/0.431 ms

Any suggestion whats going wrong here?


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