1. Summary: Can't receive multi-cast data correctly when using unique
multi-cast
addresses but a common port.
2. Description
I'm converting an application that runs under SGI IRIX 6.2 to run under
Linux.
It works under IRIX. I can't receive multi-cast data correctly under
Linux when
using a unique multi-cast addresses but a common port. Any process that
is
listening to a particular port will receive all data for that port
irregardless
of the address.
Everything works if each process uses unique multi-cast address and
unique
ports. No common ports at all. It was my understanding that a connection
requires a unique 5-tuple. Source and destination address, source and
destination port, and protocol.
3. Keywords: kernel networking multi-cast
4. Kernel version: 2.2.10 and 2.4.7
5. Output of Oops: Not an OOPS
6. Example : I don't think so
7.Environment
7.1 ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
Linux linux_test1 2.4.7-10 #1 Thu Sep 6 17:27:27 EDT 2001 i686 unknown
Gnu C 2.96
Gnu make 3.79.1
binutils 2.11.90.0.8
util-linux 2.11f
mount 2.11g
modutils 2.4.6
e2fsprogs tune2fs
reiserfsprogs 3.x.0j
PPP 2.4.1
isdn4k-utils 3.1pre1
Linux C Library 2.2.4
Dynamic linker (ldd) 2.2.4
Procps 2.0.7
Net-tools 1.60
Console-tools 0.3.3
Sh-utils 2.0.11
Modules Loaded sd_mod scsi_mod ide-cd cdrom nls_iso8859-1 nls_cp437
vfat fat soundcore autofs e100 ipchains
usb-uhci
usbcore ext3 jbd
-- Versions installed: (if some fields are empty or looks
-- unusual then possibly you have very old versions)
Linux metalshop.gsfc.nasa.gov 2.2.10 #1 SMP Tue Aug 10 19:01:45 MDT
1999 i586 unknown
Kernel modules 2.1.121
Gnu C egcs-2.91.66
Binutils 2.9.1.0.21
Linux C Library 2.1.1
Dynamic linker ldd: version 1.9.11
Linux C++ Library 2.9.0
Procps 2.0.2
Mount 2.9s
Net-tools 1.52
Kbd 0.99
Sh-utils 1.16
Modules Loaded nfs lockd sunrpc lp parport_pc parport 3c59x
sound soundcore
soundlow sd_mod aic7xxx loop scsi_mod
7.2 Processor information
kernel 2.4.7
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Pentium III (Coppermine)
stepping : 10
cpu MHz : 851.954
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca
cmov
pat pse36 mmx fxsr sse
bogomips : 1697.38
kernel 2.2.10
processor : 0
vendor_id : AuthenticAMD
cpu family : 5
model : 8
model name : AMD-K6(tm) 3D processor
stepping : 0
cpu MHz : 300.689371
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr mce cx8 sep mmx 3dnow
bogomips : 599.65
7.3 Module information
kernel 2.4.7
sd_mod 11616 0 (autoclean) (unused)
scsi_mod 95696 1 (autoclean) [sd_mod]
ide-cd 27072 0 (autoclean)
cdrom 28512 0 (autoclean) [ide-cd]
nls_iso8859-1 2832 0 (autoclean)
nls_cp437 4352 0 (autoclean)
vfat 9584 0 (autoclean)
fat 32384 0 (autoclean) [vfat]
soundcore 4464 0 (autoclean)
autofs 11520 0 (autoclean) (unused)
e100 52144 1
ipchains 39200 0
usb-uhci 21536 0 (unused)
usbcore 51712 1 [usb-uhci]
ext3 64624 6
jbd 40992 6 [ext3]
kernel 2.2.10
nfs 30168 1 (autoclean)
lockd 31720 1 (autoclean) [nfs]
sunrpc 53924 1 (autoclean) [nfs lockd]
lp 5692 0 (unused)
parport_pc 5620 1
parport 7648 1 [lp parport_pc]
3c59x 18472 2
sound 60248 0 (unused)
soundcore 2788 3 [sound]
soundlow 304 0 [sound]
sd_mod 17116 2
aic7xxx 103484 2
loop 7712 0 (unused)
scsi_mod 59248 2 [sd_mod aic7xxx]
7.4 Loaded driver and hardware information
kernel 2.2.10
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
02f8-02ff : serial(auto)
0376-0376 : ide1
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0400-043f : Intel Corporation 82371AB PIIX4 ACPI
0440-045f : Intel Corporation 82371AB PIIX4 ACPI
0cf8-0cff : PCI conf1
e800-e8ff : ATI Technologies Inc Rage XL
ee80-eebf : Intel Corporation 82557 [Ethernet Pro 100] (#2)
ee80-ee9f : e100
ef00-ef3f : Intel Corporation 82557 [Ethernet Pro 100]
ef00-ef1f : e100
ef80-ef9f : Intel Corporation 82371AB PIIX4 USB
ef80-ef9f : usb-uhci
ffa0-ffaf : Intel Corporation 82371AB PIIX4 IDE
ffa0-ffa7 : ide0
ffa8-ffaf : ide1
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000c8000-000c97ff : Extension ROM
000c9800-000cafff : Extension ROM
000f0000-000fffff : System ROM
00100000-1ffbffff : System RAM
00100000-0023d5ff : Kernel code
0023d600-002541cb : Kernel data
1ffc0000-1fff7fff : ACPI Tables
1fff8000-1fffffff : ACPI Non-volatile Storage
e0000000-efffffff : Intel Corporation 440BX/ZX - 82443BX/ZX Host
bridge (AGP dis
abled)
fd000000-fdffffff : ATI Technologies Inc Rage XL
fe800000-fe8fffff : Intel Corporation 82557 [Ethernet Pro 100] (#2)
fea00000-feafffff : Intel Corporation 82557 [Ethernet Pro 100]
febfa000-febfafff : Intel Corporation 82557 [Ethernet Pro 100] (#2)
febfb000-febfbfff : Intel Corporation 82557 [Ethernet Pro 100]
febff000-febfffff : ATI Technologies Inc Rage XL
fec00000-fec00fff : reserved
fee00000-fee00fff : reserved
fff00000-ffffffff : reserved
kernel 2.2.10
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
02f8-02ff : serial(auto)
0378-037a : parport0
03c0-03df : vga+
03f8-03ff : serial(auto)
d800-d8be : aic7xxx
dc00-dc3f : eth0
e000-e03f : eth1
cat: /proc/iomem: No such file or directory
7.5 PCI information
kernel 2.4.7
<nothing>
kernel 2.2.10
00:00.0 Host bridge: VIA Technologies, Inc. VT82C597 [Apollo VP3] (rev
04)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 16 set
Region 0: Memory at e0000000 (32-bit, prefetchable)
Capabilities: [a0] AGP version 1.0
Status: RQ=7 SBA+ 64bit- FW- Rate=21
Command: RQ=7 SBA+ AGP- 64bit- FW- Rate=21
00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3 AGP]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-
Latency: 0 set
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: e4000000-e5ffffff
Prefetchable memory behind bridge: e6000000-e6ffffff
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C586 ISA [Apollo VP]
(rev 41)
Subsystem: Unknown device 1106:0000
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop-
ParErr- Stepping+ SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0 set
00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo]
(rev 06) (prog-if 8f)
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 0
Region 0: I/O ports at <ignored> [disabled]
Region 1: I/O ports at <ignored> [disabled]
Region 2: I/O ports at <ignored> [disabled]
Region 3: I/O ports at <ignored> [disabled]
Region 4: I/O ports at d000 [disabled]
00:08.0 SCSI storage controller: Adaptec AIC-7861 (rev 01)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 4 min, 4 max, 64 set, cache line size 08
Interrupt: pin A routed to IRQ 15
Region 0: I/O ports at d800
Region 1: Memory at ea000000 (32-bit, non-prefetchable)
00:0a.0 Ethernet controller: 3Com Corporation 3c905 100BaseT4
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 3 min, 8 max, 64 set
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at dc00
00:0b.0 Ethernet controller: 3Com Corporation 3c905 100BaseT4
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 2 min, 64 set
Interrupt: pin A routed to IRQ 9
Region 0: I/O ports at e000
01:00.0 VGA compatible controller: ATI Technologies Inc 215GB [Mach64
GB] (rev 5c)
Subsystem: Unknown device 1002:0040
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping+ SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 8 min, 64 set, cache line size 08
Region 0: Memory at e6000000 (32-bit, prefetchable)
Region 1: I/O ports at c000
Region 2: Memory at e5000000 (32-bit, non-prefetchable)
Capabilities: [50] AGP version 1.0
Status: RQ=255 SBA+ 64bit- FW- Rate=21
Command: RQ=255 SBA+ AGP- 64bit- FW- Rate=21
7.6 None on either machine.
7.7
kernel 2.4.7
ifconfig
eth0 Link encap:Ethernet HWaddr 00:02:B3:A4:A3:EA
inet addr:172.16.1.100 Bcast:172.16.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11246189 errors:0 dropped:0 overruns:0 frame:0
TX packets:27619104 errors:284 dropped:0 overruns:0 carrier:284
collisions:296058 txqueuelen:100
RX bytes:2442513226 (2329.3 Mb) TX bytes:980767033 (935.3 Mb)
Interrupt:5 Base address:0xef00 Memory:e08b7000-e08b7c40
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:1442509 errors:0 dropped:0 overruns:0 frame:0
TX packets:1442509 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1275302817 (1216.2 Mb) TX bytes:1275302817 (1216.2
Mb)
route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref
Use Iface
172.16.0.0 0.0.0.0 255.255.0.0 U 0 0
0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0
0 lo
224.0.0.0 0.0.0.0 240.0.0.0 U 0 0
0 eth0
0.0.0.0 172.16.1.78 0.0.0.0 UG 0 0
0 eth0
kernel 2.2.10
ifconfig
eth0 Link encap:Ethernet HWaddr 00:60:08:8D:8E:57
inet addr:172.16.1.78 Bcast:172.16.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:69509 errors:0 dropped:0 overruns:0 frame:0
TX packets:131501 errors:0 dropped:0 overruns:0 carrier:0
collisions:64776 txqueuelen:100
Interrupt:5 Base address:0xdc00
eth1 Link encap:Ethernet HWaddr 00:60:08:8D:90:10
inet addr:<deleted> Bcast:<deleted> Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:80106 errors:0 dropped:0 overruns:0 frame:0
TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
Interrupt:9 Base address:0xe000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:14317 errors:0 dropped:0 overruns:0 frame:0
TX packets:14317 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref
Use Iface
<deleted> 0.0.0.0 255.255.255.0 U 0 0
0 eth1
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0
0 eth0
172.16.1.0 0.0.0.0 255.255.255.0 U 0 0
0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0
0 lo
224.0.0.0 0.0.0.0 240.0.0.0 U 0 0
0 eth0
0.0.0.0 <deleted> 0.0.0.0 UG 1 0
0 eth1
0.0.0.0 172.16.1.254 0.0.0.0 UG 1 0
0 eth0
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