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[SOLVED] Cisco 6509-E Not Processing IGMP Membership Reports on SVI :: System Version:DUAL-Sup720-12.2(33)SXJ6

Vincent Vlk
Level 1
Level 1

‎06-08-2015 01:31 AM - edited ‎03-08-2019 12:26 AM

EDIT:

Hello guys,

 

what a stupid mistake from me! I've forgot that i have applied some basic security configuration, which included command to drop all IP packets with Options field set:

 

ip options drop

Because IGMP Membership Report packets use Router Alert Option this type of traffic was dropped unconditionally.

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Hello Everybody,

 

our Cisco 6509-E System Version:DUAL-Sup720-12.2(33)SXJ6

is not processing IGMP Membership Reports on SVIs, for this example I've configured SVI VLAN 920 as LAN SVI and SVI VLAN 608 serves as PIM uplink. The switch is in default configuration.

ip multicast-routing
!
interface Vlan920
 description tvcore-iptv-test
 ip address 172.16.40.1 255.255.255.0
 ip helper-address 172.16.8.11
 ip pim sparse-mode

when clients try to Join (Report) some groups nothing happens regarding the mroute and IGMP Group table :

#show ip igmp groups
IGMP Connected Group Membership
Group Address    Interface                Uptime    Expires   Last Reporter   Group Accounted
224.0.1.40       Vlan608                  4d04h     00:02:36  109.74.150.53

-----------------------------------------------------------

#show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
       L - Local, P - Pruned, R - RP-bit set, F - Register flag,
       T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
       X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
       U - URD, I - Received Source Specific Host Report,
       Z - Multicast Tunnel, z - MDT-data group sender,
       Y - Joined MDT-data group, y - Sending to MDT-data group
       V - RD & Vector, v - Vector
Outgoing interface flags: H - Hardware switched, A - Assert winner
 Timers: Uptime/Expires
 Interface state: Interface, Next-Hop or VCD, State/Mode

(*, 224.0.1.40), 4d16h/00:02:58, RP 109.74.150.19, flags: SJPL
  Incoming interface: Vlan608, RPF nbr 109.74.150.54
  Outgoing interface list: Null

 

Output from debug ip igmp shows for VLAN 920 just :

Jun  8 08:07:15.405: IGMP(0): Send v2 general Query on Vlan920
Jun  8 08:08:15.406: IGMP(0): Send v2 general Query on Vlan920
Jun  8 08:09:15.407: IGMP(0): Send v2 general Query on Vlan920
Jun  8 08:10:15.408: IGMP(0): Send v2 general Query on Vlan920

Output from some diagnostic commands:

#show version

Cisco IOS Software, s72033_rp Software (s72033_rp-ADVENTERPRISE_WAN-M), Version 12.2(33)SXJ6, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Fri 19-Jul-13 03:29 by prod_rel_team

ROM: System Bootstrap, Version 12.2(17r)S2, RELEASE SOFTWARE (fc1)

 shc3-tv-core-RB9 uptime is 4 days, 16 hours, 49 minutes
Uptime for this control processor is 4 days, 16 hours, 48 minutes
Time since shc3-tv-core-RB9 switched to active is 4 days, 16 hours, 47 minutes
System returned to ROM by reload at 17:26:46 CDT Wed Jun 3 2015 (SP by reload)
System restarted at 17:30:09 CDT Wed Jun 3 2015
System image file is "disk0:s72033-adventerprise_wan-mz.122-33.SXJ6.bin"
Last reload reason: Reload Command

cisco WS-C6506 (R7000) processor (revision 3.0) with 983008K/65536K bytes of memory.
Processor board ID TBA05192265
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
Last reset from power-on
66 Virtual Ethernet interfaces
52 Gigabit Ethernet interfaces
8 Ten Gigabit Ethernet interfaces
1917K bytes of non-volatile configuration memory.
8192K bytes of packet buffer memory.

65536K bytes of Flash internal SIMM (Sector size 512K).
Configuration register is 0x2102

-----------------------------------------------------------

#show module
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  1   48  CEF720 48 port 10/100/1000mb Ethernet  WS-X6748-GE-TX     SAL11445EGK
  3    4  CEF720 4 port 10-Gigabit Ethernet      WS-X6704-10GE      SAD0928040J
  4    4  CEF720 4 port 10-Gigabit Ethernet      WS-X6704-10GE      SAL1027UDT3
  5    2  Supervisor Engine 720 (Active)         WS-SUP720-3BXL     SAL1251D9NB
  6    2  Supervisor Engine 720 (Hot)            WS-SUP720-3BXL     SAD100405CS

Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  1  001e.13f5.8d00 to 001e.13f5.8d2f   2.6   12.2(14r)S5  12.2(33)SXJ6 Ok
  3  0014.1c6b.d694 to 0014.1c6b.d697   2.2   12.2(14r)S5  12.2(33)SXJ6 Ok
  4  0018.199d.4430 to 0018.199d.4433   2.4   12.2(14r)S5  12.2(33)SXJ6 Ok
  5  001e.be6e.ad74 to 001e.be6e.ad77   5.7   8.5(2)       12.2(33)SXJ6 Ok
  6  0011.9202.559c to 0011.9202.559f   4.5   8.4(2)       12.2(33)SXJ6 Ok

Mod  Sub-Module                  Model              Serial       Hw     Status
---- --------------------------- ------------------ ----------- ------- -------
  1  Centralized Forwarding Card WS-F6700-CFC       SAD093401RZ  2.0    Ok
  3  Distributed Forwarding Card WS-F6700-DFC3BXL   SAL1127TRTK  5.3    Ok
  4  Centralized Forwarding Card WS-F6700-CFC       SAL1027TQ4A  2.0    Ok
  5  Policy Feature Card 3       WS-F6K-PFC3BXL     SAD1135Y334  1.9    Ok
  5  MSFC3 Daughterboard         WS-SUP720          SAD1135Y333  2.2    Ok
  6  Policy Feature Card 3       WS-F6K-PFC3BXL     SAD100309G8  1.8    Ok
  6  MSFC3 Daughterboard         WS-SUP720          SAL1017L90L  2.5    Ok

Mod  Online Diag Status
---- -------------------
  1  Pass
  3  Pass
  4  Pass
  5  Pass
  6  Pass

-----------------------------------------------------------

#show ip igmp interface vlan 920
Vlan920 is up, line protocol is up
  Internet address is 172.16.40.1/24
  IGMP is enabled on interface
  Current IGMP host version is 2
  Current IGMP router version is 2
  IGMP query interval is 60 seconds
  IGMP configured query interval is 60 seconds
  IGMP querier timeout is 120 seconds
  IGMP configured querier timeout is 120 seconds
  IGMP max query response time is 10 seconds
  Last member query count is 2
  Last member query response interval is 1000 ms
  Inbound IGMP access group is not set
  IGMP activity: 0 joins, 0 leaves
  Multicast routing is enabled on interface
  Multicast TTL threshold is 0
  Multicast designated router (DR) is 172.16.40.1 (this system)
  IGMP querying router is 172.16.40.1 (this system)
  No multicast groups joined by this system
  IGMP snooping is globally enabled
  IGMP snooping CGMP-AutoDetect is globally enabled
  IGMP snooping is enabled on this interface
  IGMP snooping fast-leave (for v2) is disabled
  IGMP snooping querier is disabled.
  IGMP snooping explicit-tracking is enabled
  IGMP snooping last member query response interval is 1000 ms
  IGMP snooping report-suppression is enabled
  IGMP snooping query interval is 60000 ms
  IGMP configured snooping query interval is 60000 ms
  IGMP snooping querier version is 3
  IGMP snooping querier - TCN query count is 2
  IGMP snooping querier - TCN query interval is 10000 ms

Any help or hint would be appreciated ;-)

Thanks in advance

 

Vincent Vlk

Labels:
0 Helpful
2 Replies 2

Iulian Vaideanu
Level 4
Level 4

‎06-08-2015 05:53 AM

What does "show ip mroute 224.0.1.40 count" say?  Maybe the source IP address of group 224.0.1.40 is unreachable from the router (that is, the group fails the RPF check)...

0 Helpful

Vincent Vlk
Level 1
Level 1
In response to Iulian Vaideanu

‎06-08-2015 06:32 AM

Hi Iulian,

 

224.0.1.40 is AUTO-RP-DISCOVERY group automatically added by router. I'am trying to join some other private groups, like our 239.1.152.X range or from our GLOP range 233.X.Y.Z. That is the problem, that i don't see this group addresses in mroute or IGMP table, with debug output showing only General Query on VLAN 920, but not any Membership report.

 

#show ip mroute 224.0.1.40 count
IP Multicast Statistics
1 routes using 552 bytes of memory
1 groups, 0.00 average sources per group
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kilobits per second
Other counts: Total/RPF failed/Other drops(OIF-null, rate-limit etc)

Group: 224.0.1.40, Source count: 0, Packets forwarded: 0, Packets received: 0

But thanks anyway for your input.

0 Helpful
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