2 messages in org.freebsd.freebsd-amd64amd64/148537: IP respond to ping even...| From | Sent On | Attachments |
|---|---|---|
| Fabrice Bruel | Jul 13, 2010 1:51 am | |
| Vlad Galu | Jul 13, 2010 4:59 am |
| Subject: | amd64/148537: IP respond to ping even if the attached interface is no carrier | |
|---|---|---|
| From: | Fabrice Bruel (fabr...@orange-ftgroup.com) | |
| Date: | Jul 13, 2010 1:51:55 am | |
| List: | org.freebsd.freebsd-amd64 | |
Number: 148537 Category: amd64 Synopsis: IP respond to ping even if the attached interface is no carrier Confidential: no Severity: serious Priority: medium Responsible: freebsd-amd64 State: open Quarter: Keywords: Date-Required: Class: sw-bug Submitter-Id: current-users Arrival-Date: Tue Jul 13 09:10:02 UTC 2010 Closed-Date: Last-Modified: Originator: Fabrice Bruel Release: FreeBSD 8.0 release amd 64 Organization: OBS Environment:
FreeBSD HPFBSD8PF64 8.0-RELEASE-p3 FreeBSD 8.0-RELEASE-p3 #0: Fri Jul 9
08:47:02 GMT 2010 root@HPFBSD8PF64:/usr/obj/usr/src/sys/FBSD8PF amd64
Description:
Hello,
Please considered a server with two or more physicals Ethernet Interfaces. To
supervise this server, we are using a tool that try to ping all the IP address
of the server, but the IP packet come by just one interface (that is on the same
LAN on the supervision tool).
If an interface is "no carrier", its IP answer very well to the ping request, so
in our tool, everything seems to be OK.
Is it possible that the FreeBSD Kernel checks the status of an interface before
answer ?
Thanks Fabrice
How-To-Repeat:
- A server with two physical interfaces. - a static route to access the second interface through the first interface - unplugged the network cable in the second interface - ping @IP_attached_to_the_second_interface
Fix:
Release-Note: Audit-Trail: Unformatted:
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