Date: Tue, 26 Feb 2008 19:42:17 +0200 From: "Dave Raven" <dave@raven.za.net> To: "'Ingo Flaschberger'" <if@xip.at> Cc: freebsd-net@freebsd.org Subject: RE: Hping/Ping Message-ID: <03cf01c8789e$f15b0860$d4111920$@za.net> In-Reply-To: <alpine.LFD.1.00.0802261831490.17127@filebunker.xip.at> References: <03cb01c8789b$04aade30$0e009a90$@za.net> <alpine.LFD.1.00.0802261831490.17127@filebunker.xip.at>
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Hi,
Yes there are no hops, I'm just pinging the router infront of me.
# netstat -nI silbpi1
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs
Coll
silbp 1500 <Link#2> 00:e0:ed:0c:a8:5d 1009627153 2459 1323071177 0
0
silbp 1500 x.x.x.x x.x.x.x 606092 - 1323073544 - -
There are errors, but that was from when I was changing the mode of the
interface (from autosense) - they don't increment as the pings drop..
# ifconfig silbpi1
silbpi1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=3<RXCSUM,TXCSUM>
inet x.x.x.x netmask 0xfffffff0 broadcast x.x.x.x
ether 00:e0:ed:0c:a8:5d
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
The silbpi card uses the em driver - I tried the onboard em cards but had
the same problem..
I've also connected a cable to my other card, silbpi0, which does no traffic
and pinging on there is stable. That seems to indicate it's something card
specific, but hping never has a problem ?
Thanks for the help
Dave
-----Original Message-----
From: Ingo Flaschberger [mailto:if@xip.at]
Sent: Tuesday, February 26, 2008 7:34 PM
To: Dave Raven
Cc: freebsd-net@freebsd.org
Subject: RE: Hping/Ping
Dear Dave,
> Also, if I use tethereal to sniff for icmp packets to the host I'm
> pinging I see them all even though I am getting drops --
>
> 23 packets transmitted, 22 packets received, 4% packet loss
>
> The last two lines of my tethereal --
>
> 45 22.214610 x.x.x.x -> y.y.y.y ICMP Echo (ping) request
> 46 22.215133 y.y.y.y -> x.x.x.x ICMP Echo (ping) reply
>
> 46/2 (request/reply) = 23. So 23 packets actually went out and returned,
yet
> I still get drops?
*) You ping machine to machine (no other hops between)?
*) ifconfig <yournetworkinterface>
*) netstat -nI <yournetworkinterface>
Kind regards,
Ingo Flaschberger
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