%Aug 28 20:14:29:034 2024 Core ARP/6/DUPIFIP: -Chassis=2-Slot=1; Duplicate address 172.23.40.1 on interface Vlan-interface40, sourced from 1ef3-3c31-806f
%Aug 28 20:14:36:302 2024 Core ARP/6/DUPIFIP: -Chassis=2-Slot=1; Duplicate address 172.23.33.1 on interface Vlan-interface33, sourced from 7223-db8b-bf6e
%Aug 28 20:14:47:363 2024 Core SHELL/6/SHELL_CMD: -Line=vty0-IPAddr= 172.23.30.44-User=admin; Command is dis arp vlan 10
%Aug 28 20:14:52:557 2024 Core ARP/6/DUPIFIP: -Chassis=2-Slot=0; Duplicate address 172.23.16.1 on interface Vlan-interface16, sourced from 06ad-6ebc-19af
%Aug 28 20:15:07:100 2024 Core STP/6/STP_NOTIFIED_TC: -Chassis=1-Slot=1; Instance 0's port Ten-GigabitEthernet1/1/0/3 was notified a topology change.
%Aug 28 20:15:20:678 2024 Core ARP/6/DUPIFIP: -Chassis=2-Slot=1; Duplicate address 172.23.40.1 on interface Vlan-interface40, sourced from 1ef3-3c31-806f
%Aug 28 20:15:24:815 2024 Core ARP/6/DUPIFIP: -Chassis=1-Slot=1; Duplicate address 172.23.40.1 on interface Vlan-interface40, sourced from 408c-1fc1-7dbd
%Aug 28 20:16:04:838 2024 Core SHELL/6/SHELL_CMD: -Line=vty0-IPAddr= 172.23.30.44-User=admin; Command is dis log
%Aug 28 20:16:14:966 2024 Core ARP/6/DUPIFIP: -Chassis=1-Slot=1; Duplicate address 172.23.40.1 on interface Vlan-interface40, sourced from 304f-005b-846d
ARP/6/ARP_PKTQUE_ALERT: -Chassis=1-Slot=1; The current size of the ARP_PKT queue has reached 34224. Please check the network environment.
xdm,这种现象是不是arp攻击,报冲突的都是核心无线网关,且mac地址不同,用户端有小部分出现无法上网,该如何解决,也根据官网和网上查的一些资料做了一些对应的arp攻击防御,日志还是出现告警。
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做了以下相关配置
arp source-suppression enable
arp source-suppression limit 100
arp resolving-route enable
ip source binding ip-address 1.1.1.1 mac-address 0023-24a1-0605 arp绑定在了对应vlanif网关接口上
arp filter source 10.130.16.1 这在上联接口上配置的
arp valid-check enable
arp check enable
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