[OLSR-users] problem with Ip6MulticastGlobal in /etc/olsrd.conf

Fri Dec 2 12:48:52 CET 2005

Hi

Today i was playing with ipv6mulicastglobal address
and experienced some strange experience. Probably the
mcast socket ins not initialised properly

case 1:

i set the  Ip6MulticastGlobal to ff05::1 (instead of
ff0e::1) in /etc/olsrd.conf and assign global unicast
address to my interface. On running olsrd i got seg
fault

[(spam-protected) root]#
/root/olsrd-0.4.10-cvs/olsrd-current/olsrd -d 9 -ipc
-ipv6 -i eth1

 *** olsr.org - 0.4.10-pre ***
 Build date: Dec  1 2005
 http://www.olsr.org

Parsing file: "/etc/olsrd.conf"
Queuing if eth1
Duplicate interfaces defined... not adding eth1
 *** olsrd configuration ***
Debug Level      : 9
IpVersion        : 6
No interfaces    : ALLOWED
TOS              : 0x10
Willingness      : AUTO
IPC connections  : 1
        Host 127.0.0.1
Pollrate         : 0.05
TC redundancy    : 0
MPR coverage     : 1
LQ level         : 0
LQ fish eye      : 0
LQ Dijkstra limit: 255, 0.00
LQ window size   : 10
Clear screen     : yes
Interfaces:
 dev: "eth1"
        IPv4 broadcast           : AUTO
        IPv6 addrtype            : global
        IPv6 multicast site/glbl : ff05::15/ff05::1
        HELLO emission/validity  : 2.00/6.00
        TC emission/validity     : 5.00/15.00
        MID emission/validity    : 5.00/15.00
        HNA emission/validity    : 5.00/15.00
Not using hysteresis

IP forwarding is enabled on this system
Initializing parser...
Parser: registering event for type 1
Register parse function: Added function for type 1
Parser: registering event for type 2
Register parse function: Added function for type 2
Parser: registering event for type 3
Register parse function: Added function for type 3
Parser: registering event for type 4
Register parse function: Added function for type 4
Scheduler event registered int: 20.00
Initializing APM
APM info:
        AC status 134688512
        Battery percentage 7%
        Battery time left -1073744744 mins

Could not read APM info - setting default
willingness(3)
Using IP version 6
Added :: to IP deny set
Added ::1 to IP deny set

 ---- Interface configuration ----

Checking eth1:
        Wireless interface detected
        inet6 addr:
fe80:0000:0000:0000:020d:88ff:fe91:fdff
        Scope: 32
        inet6 addr:
2001:0620:0500:0029:020d:88ff:fe91:fdff
        Scope: 0
Found addr: 2001:0620:0500:0029:020d:88ff:fe91:fdff
        Address: 2001:620:500:29:20d:88ff:fe91:fdff
        Multicast: ff05::1
        Metric: 1
        MTU - IPhdr: 1452
        Index 0
        Address: 2001:620:500:29:20d:88ff:fe91:fdff
        Multicast: ff05::1
Binding socket 5 to device eth1
Interface eth1 joining multicast ff05::1...OK
Adding OLSR socket entry 5
New main address: 2001:620:500:29:20d:88ff:fe91:fdff
Scheduler event registered int: 2.00
Scheduler event registered int: 5.00
Scheduler event registered int: 5.00
Scheduler event registered int: 5.00
Scheduler event registered int: 2.50
Scheduler event registered int: 0.60
Parser: registering event for type -1
Register parse function: Added function for type -1
Adding OLSR socket entry 6
Initializing duplicatetable - hashsize 32
Scheduler event registered int: 2.00
TC: init topo
MPRS: Init
MID: init
Scheduler event registered int: 1.00
Scheduler event registered int: 1.00
Loading plugins...

Main address: 2001:620:500:29:20d:88ff:fe91:fdff

Scheduler started - polling every 0.05 seconds
Max jitter is 0.500000

|       inet6 addr:
fe80:0000:0000:0000:020d:88ff:fe91:fdff
        Scope: 32
        inet6 addr:
2001:0620:0500:0029:020d:88ff:fe91:fdff
        Scope: 0
Found addr: 2001:0620:0500:0029:020d:88ff:fe91:fdff
Segmentation fault

case 2:

I set the Ip6MulticastGlobal to ff0e::1 in
/etc/olsrd.conf and start olsrd. Iam getting the
foillwing messgae

sendto(v6): Network is unreachable
Socket: 5 interface: 0
To: ff0e::1 (size: 28)
Outputsize: 52

and no olsr packets are going through the iface

[(spam-protected) root]#
/root/olsrd-0.4.10-cvs/olsrd-current/olsrd -d 9 -ipc
-ipv6 -i eth1

 *** olsr.org - 0.4.10-pre ***
 Build date: Dec  1 2005
 http://www.olsr.org

Parsing file: "/etc/olsrd.conf"
Queuing if eth1
Duplicate interfaces defined... not adding eth1
 *** olsrd configuration ***
Debug Level      : 9
IpVersion        : 6
No interfaces    : ALLOWED
TOS              : 0x10
Willingness      : AUTO
IPC connections  : 1
        Host 127.0.0.1
Pollrate         : 0.05
TC redundancy    : 0
MPR coverage     : 1
LQ level         : 0
LQ fish eye      : 0
LQ Dijkstra limit: 255, 0.00
LQ window size   : 10
Clear screen     : yes
Interfaces:
 dev: "eth1"
        IPv4 broadcast           : AUTO
        IPv6 addrtype            : global
        IPv6 multicast site/glbl : ff05::15/ff0e::1
        HELLO emission/validity  : 2.00/6.00
        TC emission/validity     : 5.00/15.00
        MID emission/validity    : 5.00/15.00
        HNA emission/validity    : 5.00/15.00
Not using hysteresis

IP forwarding is enabled on this system
Initializing parser...
Parser: registering event for type 1
Register parse function: Added function for type 1
Parser: registering event for type 2
Register parse function: Added function for type 2
Parser: registering event for type 3
Register parse function: Added function for type 3
Parser: registering event for type 4
Register parse function: Added function for type 4
Scheduler event registered int: 20.00
Initializing APM
APM info:
        AC status 134688512
        Battery percentage 7%
        Battery time left -1073744744 mins

Could not read APM info - setting default
willingness(3)
Using IP version 6
Added :: to IP deny set
Added ::1 to IP deny set

 ---- Interface configuration ----

Checking eth1:
        Wireless interface detected
        inet6 addr:
fe80:0000:0000:0000:020d:88ff:fe91:fdff
        Scope: 32
        inet6 addr:
2001:0620:0500:0029:020d:88ff:fe91:fdff
        Scope: 0
Found addr: 2001:0620:0500:0029:020d:88ff:fe91:fdff
        Address: 2001:620:500:29:20d:88ff:fe91:fdff
        Multicast: ff0e::1
        Metric: 1
        MTU - IPhdr: 1452
        Index 0
        Address: 2001:620:500:29:20d:88ff:fe91:fdff
        Multicast: ff0e::1
Binding socket 5 to device eth1
Interface eth1 joining multicast ff0e::1...OK
Adding OLSR socket entry 5
New main address: 2001:620:500:29:20d:88ff:fe91:fdff
Scheduler event registered int: 2.00
Scheduler event registered int: 5.00
Scheduler event registered int: 5.00
Scheduler event registered int: 5.00
Scheduler event registered int: 2.50
Scheduler event registered int: 0.60
Parser: registering event for type -1
Register parse function: Added function for type -1
Adding OLSR socket entry 6
Initializing duplicatetable - hashsize 32
Scheduler event registered int: 2.00
TC: init topo
MPRS: Init
MID: init
Scheduler event registered int: 1.00
Scheduler event registered int: 1.00
Loading plugins...

Main address: 2001:620:500:29:20d:88ff:fe91:fdff

Scheduler started - polling every 0.05 seconds
Max jitter is 0.500000

|       inet6 addr:
fe80:0000:0000:0000:020d:88ff:fe91:fdff
        Scope: 32
        inet6 addr:
2001:0620:0500:0029:020d:88ff:fe91:fdff
        Scope: 0
Found addr: 2001:0620:0500:0029:020d:88ff:fe91:fdff
Got HELLO vtime: 6.000000 htime: 2.000000
Willingness for 2001:620:500:29:20d:88ff:fe91:fe33
changed from 0 to 3 - UPDATING

       *** olsr.org - 0.4.10-pre (Dec  1 2005) ***

**RECALCULATING MPR**

Two hop neighbors: 0
************** TABLES ****************
Routing table:
ROUTING TABLE
DESTINATION     NEXT HOP        HOPCNT  INTERFACE
Old table:
ROUTING TABLE
DESTINATION     NEXT HOP        HOPCNT  INTERFACE
**************************************
Updating kernel routes...
Updating kernel HNA routes...
HNA table:
ROUTING TABLE
DESTINATION     NEXT HOP        HOPCNT  INTERFACE
mid set: 11:42:40.040489

DUP TABLE:

--- 11:42:40.04
------------------------------------------------- HNA
SET

IP net/prefixlen               GW IP

--- 11:42:40.04
----------------------------------------------------
LINKS

IP address                               hyst   LQ    
lost   total  NLQ    ETX
2001:620:500:29:20d:88ff:fe91:fe33       0.000  0.000 
0      0      0.000  0.00 
--- 11:42:40.04
------------------------------------------------
NEIGHBORS

IP address                               LQ     NLQ   
SYM   MPR   MPRS  will
2001:620:500:29:20d:88ff:fe91:fe33       0.000  0.000 
NO    NO    NO    3

--- 11:42:40.04
-------------------------------------------------
TOPOLOGY

Source IP addr                Dest IP addr            
       LQ     ILQ    ETX
sendto(v6): Network is unreachable
Socket: 5 interface: 0
To: ff0e::1 (size: 28)
Outputsize: 52
Got HELLO vtime: 6.000000 htime: 2.000000
\       inet6 addr:
fe80:0000:0000:0000:020d:88ff:fe91:fdff
        Scope: 32
        inet6 addr:
2001:0620:0500:0029:020d:88ff:fe91:fdff
        Scope: 0
Found addr: 2001:0620:0500:0029:020d:88ff:fe91:fdff
Received signal 2 - shutting down
Deleting all routes...
HNA list:
Route list:
Closing sockets...
Shutting down IPC...
Closing plugins...
Restoring network state

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