Allowed Traffic

Allowed Traffic Types on Unicast Peering LANs

Config Guide

MAC Layer

Excluded from this definition are service failures due to:

Port Security & Mitigation

The GIXA infrastructure is based on the Ethernet II (or “DIX Ethernet”) standard. This means that LLCSNAP encapsulation (802.2) is not permitted. For more information on the differences, see the Ethernet FAQ, question 4.1.2.2 Ethernet typesFrames forwarded to GIXA ports must have one of the following ethertypes:

0x0800 – IPv4
0x0806 – ARP
0x86dd – IPv6
One MAC address per connection

Frames forwarded to an individual GIXA port shall all have the same source MAC address.

No proxy ARP

Use of proxy ARP on the router’s interface to the Exchange is not allowed.

Unicast only

Frames forwarded to GIXA ports shall not be addressed to a multicast or broadcast MAC destination address except as follows:

  • broadcast ARP packets
  • multicast ICMPv6 Neighbour Discovery, Neighbour Solicitation, and MLD packets. Please note that this does not include Router Solicitation or Advertisement packets
No link-local traffic

Traffic related to link-local protocols shall not be forwarded to GIXA ports. Link-local protocols include, but are not limited to, the following list:

  • IRDP
  • ICMP redirects
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IP Layer

No directed broadcast

IP packets addressed to GIXA peering LAN's directed broadcast address shall not be automatically forwarded to GIXA ports.

No-export of GIXA peering LAN

IP address space assigned to GIXA Peering LANs must not be advertised to other networks without explicit permission of GIXA
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Application layer (TCP/IP model)

Using Application layer protocols to unleash malicious actions against other GIXA customers over GIXA infrastructure, is forbidden. GIXA reserves the right to disable a customer’s port in case of complaints of attacks/abuse originating from such customers. The following list includes, but not limited to, some very well-known attacks that we forbid:

  • broadcast ARP packets
  • multicast ICMPv6 Neighbour Discovery, Neighbour Solicitation, and MLD packets. Please note that this does not include Router Solicitation or Advertisement packets

Did you experience or notice a customer abusing their GIXA connection for malicious actions?

Get in touch

Please get in touch to file a complaint providing information about

  • The type of the event
  • The timestamp of the event

Typically, this information can be found in (but is not limited to) router logs, syslog servers, packet captures, BGP monitoring services.

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