Date: Wed, 28 May 2003 17:44:59 +0200 (CEST) From: Eric AUGE <eauge@fr.cw.net> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/52758: bogus default IP route (netstat -rn/route add) handling/display. Message-ID: <200305281544.h4SFix5h000784@eauge.fr.cw.net> Resent-Message-ID: <200305281550.h4SFoCAd094477@freefall.freebsd.org>
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>Number: 52758
>Category: bin
>Synopsis: bogus default IP route (netstat -rn/route add) handling/display.
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed May 28 08:50:12 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator: Eric AUGE
>Release: FreeBSD 5.0-RELEASE-p7 i386
>Organization:
no
>Environment:
System: FreeBSD eauge.fr.cw.net 5.0-RELEASE-p7 FreeBSD 5.0-RELEASE-p7 #2: Mon Mar 31 15:41:21 CEST 2003 root@eauge.fr.cw.net:/usr/obj/usr/src/sys/EAUGE-5 i386
CPU: Pentium III/Pentium III Xeon/Celeron (701.59-MHz 686-class CPU)
>Description:
First i add IP default bogus routes by giving a bad netmask value
(i assume it's netmask according to man (8) route)
root@eauge ~ # route add default 200.200.200.200 10.10.10.10
add net default: gateway 200.200.200.200
root@eauge ~ # route add default 127.0.0.45 62.4.8.9 10.0.0.0
...
...
root@eauge ~ # route add default 127.0.0.3 62.4.1.125
...
After Adding looking at the IP routes show strange entries,
and everything still works correctly, this work with local
and remote bogus addresses, then some hosts (cvsup2.fr.freebsd.org) just doesn't work
with standards errors and then works again, etc...
root@eauge ~ # netstat -rn -f inet
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
0&0xa0a0a0a 200.200.200.200 UGSc 0 0 lo0 =>
0&0x3e040809 127.0.0.45 UGSc 0 0 lo0 =>
0&0x3e04017d 127.0.0.3 UGSc 0 0 lo0 =>
0&0xffffff18 127.0.0.3 UGSc 0 0 lo0 =>
0&0x64646464 127.0.0.2 UGSc 0 0 lo0 =>
0&0x3e0403fe 127.0.0.2 UGSc 0 0 lo0 =>
0&0x3e0402fe 127.0.0.1 UGSc 0 0 lo0 =>
0&0x1010101 127.0.0.2 UGSc 2 0 lo0 =>
0&0xa000000 127.0.0.3 UGSc 0 0 lo0 =>
default 62.4.1.254 UGSc 16 393 fxp0
62.4/23 link#1 UC 2 0 fxp0
62.4.0.126 127.0.0.1 UGHS 0 0 lo0
62.4.0.254 00:03:6b:c0:e8:80 UHLW 0 0 fxp0 433
62.4.1.254 00:03:6b:c0:e8:80 UHLW 7 0 fxp0 981
127.0.0.1 127.0.0.1 UH 2 216 lo0
>How-To-Repeat:
Just insert bogus routes, using the commands above to see.
>Fix:
No fix yet, working on a patch.
>Release-Note:
>Audit-Trail:
>Unformatted:
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