Date: Sat, 8 May 2010 11:20:26 GMT From: Eugen Konkov <kes-kes@yandex.ru> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/146394: IP source address for outgoing connections Message-ID: <201005081120.o48BKQxM001256@www.freebsd.org> Resent-Message-ID: <201005081130.o48BU4LZ055203@freefall.freebsd.org>
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>Number: 146394
>Category: kern
>Synopsis: IP source address for outgoing connections
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat May 08 11:30:03 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Eugen Konkov
>Release: 7.1-RELEASE
>Organization:
>Environment:
FreeBSD kes.net.ua 7.1-RELEASE FreeBSD 7.1-RELEASE #0: Sat Jan 3 01:15:39 EET 2009 kes@in.lan:/usr/obj/usr/src/sys/KES_KERN_v7 i386
>Description:
I have RealIP/32 on lo0 interface
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
inet 127.0.0.1 netmask 0xff000000
inet R.E.A.L netmask 0xffffffff
netstat -nr
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
default 10.11.19.49 UGS 0 203508809 vlan4
When some do query to web or bind to R.E.A.L response is from 10.11.19.51
because of default route is on that network.
vlan4: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:13:d4:ce:82:16
inet 10.11.19.51 netmask 0xfffffff8 broadcast 10.11.19.55
media: Ethernet autoselect (100baseTX <full-duplex,flag0,flag1>)
status: active
vlan: 4 parent interface: nfe0
how to force to response from that IP to which query was arrived?
is there 'setfib' like tool? (setip for example)
>How-To-Repeat:
ifconfig lo0 add R.E.A.L1/32
ifconfig lo1 add R.E.A.L2/32
ifconfig rl4 add 10.11.19.49/30
route add default 10.11.19.50
When some program open socket it will use 10.11.19.49 as source address for outgoing packet. That is impossible to force that programm to use R.E.A.L2 or R.E.A.L1 IP address as souce address for outgoing packets
>Fix:
create tool like setfib, for example:
setfib 1 setip R.E.A.L2 /usr/local/bin/myprogram
>Release-Note:
>Audit-Trail:
>Unformatted:
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