Cisco routers and H3C Exchange devices ARP virus quick Fixes _ routers, switches

Source: Internet
Author: User
Tags switches

Cisco switches:
Show logging found the following log on the central switch
APR 10:24:16.265:%ip-4-dupaddr:duplicate address in Vlan711, sourced by 0009.6b84.189e; description has ARP virus,
2, the implementation of Conf t,mac-address static MAC address VLAN ID drop;
3, the host has the ARP virus processing, and then on the central switch execution
No mac-address static MAC address VLAN ID drop, which enables the host to access network resources.
4. Problem solving

H3C Switch:
Dis Log found the following information:
%APR 07:43:18:753 longjing arp/3/dupifip:duplicate address o
N interface vlan-interface101, sourced by 001b-b970-266d

<longjing>dis mac-address 0016-e67c-7c9f
Found out that the Mac came from G1/0/4.

Enter this interface:
Mac-address blackhole 001b-b970-266d VLAN 101

Then find the machine to remove the network cable antivirus, and then cancel the restrictions under the interface
Undo Mac-address Blackhole 001b-b970-266d VLAN 101

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.