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Community Member

How To Disable IPV6 on Cisco 6500 switch?

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

2 ACCEPTED SOLUTIONS

Accepted Solutions

Re: How To Disable IPV6 on Cisco 6500 switch?

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 **

HTH, John *** Please rate all useful posts ***
Community Member

How To Disable IPV6 on Cisco 6500 switch?

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"

19 REPLIES
Cisco Employee

How To Disable IPV6 on Cisco 6500 switch?

Hi,

By default ipv6 routing is disabled. To disable it you have to use the "no ipv6 unicast-routing" command.

Kind Regards,
Ivan

**Please grade this post if you find it useful.

Kind Regards, Ivan Shirshin **Please grade this post if you find it useful.
Community Member

How To Disable IPV6 on Cisco 6500 switch?

I tried on cisco 6500 series switch but this command didn't work,maybe another command?

Cisco Employee

How To Disable IPV6 on Cisco 6500 switch?

What is your version? Do you have any output on "show ipv6 route"?

Kind Regards, Ivan Shirshin **Please grade this post if you find it useful.
Community Member

How To Disable IPV6 on Cisco 6500 switch?

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"

Cisco Employee

How To Disable IPV6 on Cisco 6500 switch?

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

Kind Regards, Ivan Shirshin **Please grade this post if you find it useful.
Community Member

How To Disable IPV6 on Cisco 6500 switch?

Hi Ivan,

ı took this output ;

sw1(config)#no ipv6 unicast-routing

                 ^

% Invalid input detected at '^' marker.

Cisco Employee

How To Disable IPV6 on Cisco 6500 switch?

Could you do the "?" for ipv6 in config mode?

     sw1(config)#ipv6 ?

Kind Regards, Ivan Shirshin **Please grade this post if you find it useful.
Community Member

How To Disable IPV6 on Cisco 6500 switch?

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

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to

export@cisco.com.

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

How To Disable IPV6 on Cisco 6500 switch?

Ersin,

Why do you think it's enabled? It doesn't look like your IOS supports it...

John

HTH, John *** Please rate all useful posts ***
Cisco Employee

How To Disable IPV6 on Cisco 6500 switch?

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.

Kind Regards, Ivan Shirshin **Please grade this post if you find it useful.
Community Member

Re: How To Disable IPV6 on Cisco 6500 switch?

           

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?

Cisco Employee

How To Disable IPV6 on Cisco 6500 switch?

Image is

s72033-ipservices_wan-mz.122-33.SXI#.bin, where # is specific version.
Kind Regards, Ivan Shirshin **Please grade this post if you find it useful.
Community Member

Re: How To Disable IPV6 on Cisco 6500 switch?

in our network we use ipv4, but this mac adress multicast ipv6 why it happend?

Re: How To Disable IPV6 on Cisco 6500 switch?

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 **

HTH, John *** Please rate all useful posts ***
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