Hi,
Le 09/07/2010 15:21, Victor Duchovni a écrit :
On Fri, Jul 09, 2010 at 01:47:40PM +0200, St?phane MERLE wrote:
Hi,
My ISP (ovh) is complaining about my postfix servers doing wrong ARP
demand, do you have any idea of what can cause this in my postfix
configuration ?
188.165.55.92 : is one of the server ip (ip failover)
Thu Jul 8 02:03:32 2010 : arp who-has 169.254.140.241 tell 188.165.55.92
This IP address is a link-local IP address:
http://tools.ietf.org/html/rfc3927
these support zero-configuration local networking, ...
19:43:20.840082 arp reply 169.254.140.241 is-at 00:24:c3:84:04:00
Your ISP or router is proxy-arping for this IP, it should not. Link-local
addresses should be exempt (if possible).
19:43:20.840087 IP ovh63.bpreducer.com.59549> 169.254.140.241.smtp: S
1213354010:1213354010(0) win 5840<mss 1460,sackOK,timestamp 759487196
0,nop,wscale 6>
Why are are sending email to this IP address? Any Postfix logs that
indicate attempts to connect to this relay?
if you need the postfix conf files, I will send it in.
Mostly just logs that show the life-cycle of a message (all log entries
for its queue-id) in which deliveries to this IP address were attempted
and failed.
Thank you, because of your post, I checked in the postfix logs and found
: aha...@elv.enic.fr
Jul 9 01:18:33 ovh63 postfix/smtp[30687]: connect to
elv.enic.fr[169.254.140.241]:25: Connection timed out
Jul 9 01:18:33 ovh63 postfix/smtp[30687]: 138C92011CE6:
to=<aha...@elv.enic.fr>, relay=none, delay=45185, delays=45095/0/90/0,
dsn=4.4.1, status=deferred (connect to elv.enic.fr[169.254.140.241]:25:
Connection timed out)
I first clean that domain from the database and then check my bot
cleanner which missed this.
Thank you !!
Stéphane
