After the ARP gateway conflict function is enabled, why cannot traffic be forwarded based on the MAC address that is used to send ARP gateway conflict packets


After the ARP gateway conflict function detects the conflict ARP packets, the function will forbid all packets containing this source MAC address. The limit will be cancelled three minutes later.

Other related questions:
After I Enable ARP Gateway Anti-Collision, and Send Gateway Collision ARP Packets from a MAC Address, Why Can the MAC Address Not Forward Traffic
After the Address Resolution Protocol (ARP) anti-collision function detects gateway collision ARP packets, the system prohibits the source media access control (MAC) address from forwarding packets for three minutes.

When prompted to configure NAT Server,AR router report ARP conflict or interface conflict ?
When configure NAT Server, if use the network interface IP address, there may be the following configuration error. [AR2200-GigabitEthernet0/0/1] IP address 24 [AR2200-GigabitEthernet0/0/1] NAT protocol 80 global inside server Error: The conflicts with or ARP interface address IP. At this time, need to configure NAT server command when the network port IP address to current-interface, as follows: [AR2200-GigabitEthernet0/0/1] NAT protocol 80 global inside current-interface server

Why cannot a DAI-enabled switch forward valid ARP packets at line rate
In earlier versions of V200R001, a DAI-enabled switch checks ARP packets based on ACL rules delivered to the chip. Therefore, packets are directly forwarded at line rate. In V200R001 and later versions, the DAI-enabled switch checks ARP packets and forwards valid ARP packets using software. The forwarding rate depends on the CIR value of the ARP packet and CPU usage.

A message about interface conflict or ARP IP address conflict is displayed when a NAT server is configured
When the IP address of an interface on the public network is used in the nat server command to configure an intranet server to provide services for users on the public network, the following error message is displayed: [AR2200-GigabitEthernet0/0/1] ip address 24 [AR2200-GigabitEthernet0/0/1] nat server protocol 80 global inside Error: The address conflicts with interface or ARP IP. To solve this problem, change the public IP address to the current-interface in the nat server command as follows: [AR2200-GigabitEthernet0/0/1] nat server protocol 80 global current-interface inside

If you have more questions, you can seek help from following ways:
To iKnow To Live Chat
Scroll to top