>Number:         185496
>Category:       misc
>Synopsis:       RTL8169 doesn't receive unicast ethernet packets unless in 
>promiscuous mode
>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:   Sun Jan 05 17:10:00 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator:     Vladimir Machulsky
>Release:        8.2-RELEASE
>Organization:
>Environment:
FreeBSD xxx.xxx 8.2-RELEASE FreeBSD 8.2-RELEASE #2: Sat Nov  9 22:42:13 EET 
2013     [email protected]:/usr/obj/usr/src/sys/YYYYY  i386
>Description:
Hi! I have old laptop in use as a router. It's Panasonic CF-M34 - Celeron 
400MHZ, 192Mb DRAM. The problem is following: STLab C-160 Cardbus Network card 
with RTL8169 chipset denies to receive unicast ethernet packets until I turn on 
promiscuous mode.

re0: <RealTek 8169/8169S/8169SB(L)/8110S/8110SB(L) Gigabit Ethernet> port 
0x1100-0x11ff mem 0x88000000-0x880000ff irq 9 at device 0.0 on cardbus0
re0: Chip rev. 0x18000000
re0: MAC rev. 0x00000000
miibus0: <MII bus> on re0
rgephy0: <RTL8169S/8110S/8211B media interface> PHY 1 on miibus0
rgephy0:  10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 
100baseTX-FDX-flow, 1000baseT, 1000baseT-master, 1000baseT-FDX, 
1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, 
auto-flow
re0: Ethernet address: 00:0a:cd:16:84:ed
re0: [FILTER]

I believe something wrong with driver part which program chip about what to 
receive and what to not. 

I've looked to if_re.c changelog and found nothing obviously related to this 
problem was checked in since 8.2, so I believe this problem is actual for 
CURRENT too.

>How-To-Repeat:

In the following experiments two hosts are involved:

a) ROUTER - have single RTL8169 network card
b) HOST - neightbor host with a single network card.

Both hosts are connected to the same ethernet switch and have ip addresses from 
the same ip network.

Initial setup: ROUTER is cold booted. HOSTs arp cache is cleared. Infinite 
count ping of ROUTERs ip address process is started on HOST.

1) ROUTER boots, and successfully replies for arp requests - HOSTs arp data 
about router ip address is correct. I.e. broadcast ethernet packets are 
successfully received by ROUTER and ROUTERs transmitting path functioning 
flawlessly too.

2) ICMP Ping packets from HOST remains without replies. Starting Tcpdump on 
HOST. Tcpdump show icmp packets with correct destination ROUTER ethernet 
address are goes out and no any replies seen.

3) Tcpdump on ROUTER started. HOST start receive ping replies! After 
interrupting tcpdump, HOST stop receive ICMP replies. 

4) Starting ping of HOSTs ip address process from ROUTER. ROUTER get no a sole 
ICMP reply. Tcpdump on HOST show both ROUTER ICMP requests and HOST ICMP 
replies. 

>Fix:


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