Routing to the unauthorized via switch Ethernet HP 1910 169.254.0.0/16 subnet

Hello

I have a somewhat unusual situation at a customer site. They have an HP 1910 as a default gateway on their local network Ethernet switch. This is related to a Fortigate Firewall with a regular DSL connection and a WAN link to emote subnets. The question we have is that a new remote site has become active on the Wan. The unusual thing is that they have a 169.254.0.0/16 subnet. Don't ask me why this address range has been used but it is there. (169.254.0.0/16 is a space of address reserved for windows clients that cannot receive an IP via DHCP)

The client is when they try and access a resource on 169.254.0.0/16 through the switch and on the Wan of the HP 1910 switch removes the packages and will not pass them. I have trioed add static routes on the switch, but it does not transmit packets 169.254.0.0/16. Al, the other traffic is very well. Has anyone ever encountered this weird behavior?

I think I knew the people. Article 2.7 of the RFC section https://tools.ietf.org/html/rfc3927 which States that to 169.254.0.0/16 packages be sent to layer 3.

Do not know why some devices transmit these packets, but it seems that best practices is for devices of L3 to drop packets that have 169.254.0.0/16 in their source/destination IP address fields.

Tags: Notebooks

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