06-18-2012 01:28 AM - edited 03-04-2019 04:42 PM
hi everyone,
I want to learn that,on cisco switch (2950,3600,6500 series) IpV6 default open? İf It comes open on default,how to disable?
Thanks
Solved! Go to Solution.
06-18-2012 04:42 AM
This is your host send an MLD (IGMP for ipv6) report. The host is the one causing the problem. It looks like it has an HP nic at mac address 6431.5002.c6cf.
Personally, if you're not running IPv6, I'd find this host and disable ipv6 support....
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06-19-2012 05:00 AM
In global config "ip igmp limit 100" will limit number of igmp messages.
Or under interface you can set igmp version 3 so that it wont cause you high cpu usage problem.
"ip igmp version 3"
06-18-2012 01:49 AM
Hi,
By default ipv6 routing is disabled. To disable it you have to use the "no ipv6 unicast-routing" command.
Kind Regards,
Ivan
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06-18-2012 01:54 AM
I tried on cisco 6500 series switch but this command didn't work,maybe another command?
06-18-2012 02:05 AM
What is your version? Do you have any output on "show ipv6 route"?
06-18-2012 02:10 AM
Version:
Cisco IOS Software, s72033_rp Software (s72033_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(33)SXI1, RELEASE SOFTWARE (fc3)
I can not take output
"show ipv6 route"
06-18-2012 02:30 AM
Hi,
Did you run the "no ipv6 unicast-routing" command in the configuration mode? What error did it give you (please post here)?
Kind Regards,
Ivan
06-18-2012 02:46 AM
Hi Ivan,
ı took this output ;
sw1(config)#no ipv6 unicast-routing
^
% Invalid input detected at '^' marker.
06-18-2012 02:53 AM
Could you do the "?" for ipv6 in config mode?
sw1(config)#ipv6 ?
06-18-2012 03:20 AM
sw1#sh version
Cisco IOS Software, s72033_rp Software (s72033_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(33)SXI1, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Sat 28-Mar-09 10:30 by prod_rel_team
ROM: System Bootstrap, Version 12.2(17r)SX5, RELEASE SOFTWARE (fc1)
sw1 uptime is 2 years, 20 weeks, 3 days, 9 hours, 16 minutes
Uptime for this control processor is 2 years, 20 weeks, 3 days, 8 hours, 52 minutes
Time since sw1 switched to active is 2 years, 20 weeks, 3 days, 8 hours, 45 minutes
System returned to ROM by power cycle at 12:12:09 UTC Tue Dec 8 2009 (SP by power-on)
System restarted at 03:34:32 GMT+2 Wed Jan 27 2010
System image file is "sup-bootdisk:s72033-adventerprisek9_wan-mz.122-33.SXI1.bin"
Last reload reason: VSLP HA role change from active to standby
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
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Importers, exporters, distributors and users are responsible for
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If you require further assistance please contact us by sending email to
cisco WS-C6509-E (R7000) processor (revision 1.5) with 983008K/65536K bytes of memory.
Processor board ID SMC1328004C
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
Last reset from s/w reset
54 Virtual Ethernet interfaces
390 Gigabit Ethernet interfaces
4 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
sw1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
sw1(config)#ipv6 ?
% Unrecognized command
sw1(config)#ipv6
06-18-2012 04:12 AM
Ersin,
Why do you think it's enabled? It doesn't look like your IOS supports it...
John
06-18-2012 04:20 AM
Hi,
I can't find a confirmation in release notices but it seems ipv6 is not supported in that IOS version. IpServices should have the ipv6 functionality.
Kind Regards,
Ivan
**Please grade this post if you find it useful.
06-18-2012 04:30 AM
Hi j.Blakley,
there was a problem on the internal network,between vlans.At the same time run wireshark ı took this wireshark report. Thats why ı thougt this. But ı am not sure,What can be problem curtenly?
06-18-2012 04:31 AM
Image is
s72033-ipservices_wan-mz.122-33.SXI#.bin, where # is specific version.
06-18-2012 04:33 AM
in our network we use ipv4, but this mac adress multicast ipv6 why it happend?
06-18-2012 04:42 AM
This is your host send an MLD (IGMP for ipv6) report. The host is the one causing the problem. It looks like it has an HP nic at mac address 6431.5002.c6cf.
Personally, if you're not running IPv6, I'd find this host and disable ipv6 support....
** Please rate useful posts **
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