kern/159103: ping local address on box shows source address 0.0.0.0

[Rashid N. Achilov]

>Number:         159103
>Category:       kern
>Synopsis:       ping local address on box shows source address 0.0.0.0
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jul 22 08:20:07 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     Rashid N. Achilov
>Release:        8.2-STABLE
>Organization:
LLC "AS-System Complex"
>Environment:
System: FreeBSD master.askd.ru 8.2-STABLE FreeBSD 8.2-STABLE #1: Fri Jul 15 18:23:18 NOVST 2011 root at master-new.askd.gmbh:/usr/obj/usr/src/sys/Master i386
Interface:
em0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500        options=219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC>
        ether 00:xx:xx:xx:xx:xx
        inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
>Description:
When I try to do ordinary ping for local address in interface em0, ping shows 100% lost
master:[root] 102>ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes
^C
--- 192.168.1.1 ping statistics ---
2 packets transmitted, 0 packets received, 100.0% packet loss

When I do the same, but with hardly specified IP address, all OK:
master:[root] 109>ping -S 192.168.1.1 192.168.1.1
PING 192.168.1.1 (192.168.1.1) from 192.168.1.1: 56 data bytes
64 bytes from 192.168.1.1: icmp_seq=0 ttl=64 time=0.019 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.030 ms
^C
--- 192.168.1.1 ping statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 0.019/0.025/0.030/0.005 ms

When I try to looking, what's wrong, I see, that first time source address is 0.0.0.0! 

master:[root] 113>tcpdump -i lo0 -n icmp and host 192.168.1.1
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on lo0, link-type NULL (BSD loopback), capture size 96 bytes
15:08:37.278462 IP 0.0.0.0 > 192.168.1.1: ICMP echo request, id 29301, seq 3, length 64
15:08:38.277404 IP 0.0.0.0 > 192.168.1.1: ICMP echo request, id 29301, seq 4, length 64
15:08:43.163123 IP 0.0.0.0 > 192.168.1.1: ICMP echo request, id 41845, seq 0, length 64
^C
3 packets captured
109 packets received by filter
0 packets dropped by kernel

Same way at FreeBSD 7.3-RELEASE all OK: (192.168.1.94 is their address)
to-594:[root] 139>ping 192.168.1.94
PING 192.168.1.94 (192.168.1.94): 56 data bytes
64 bytes from 192.168.1.94: icmp_seq=0 ttl=64 time=0.031 ms
64 bytes from 192.168.1.94: icmp_seq=1 ttl=64 time=0.041 ms
^C
--- 192.168.1.94 ping statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 0.031/0.036/0.041/0.005 ms


>How-To-Repeat:
Install FreeBSD 8.x.
Configure any local interface.
Try to ping it.
You failed.
>Fix:
None

>Release-Note:
>Audit-Trail:
>Unformatted: