Features in 24.04
This release contains the following features:
- Syslog Configuration on Tunnel Concentrator
- Administrators can now
configure settings for system log and syslog reporting from the Tunnel Concentrator user interface. For
syslog reporting, administrators can assign up to three syslog servers. For
configuration information, see the Extreme Tunnel Concentrator Deployment Guide.
- Improved Tunnel Statistics on Tunnel Concentrator
- The tunnel view on the Tunnel Concentrator user interface has been
updated with improved statistics. The view of tunnels now includes the
number of packets sent and the number of packets received over the
interface.
- ARP Responder
- Tunnel Concentrator supports ARP Responder
functionality by default. With this update, Tunnel Concentrator now stores its own ARP
lookup table and can proxy and respond to ARP requests. No configuration is
required to enable the feature.
To update its ARP table, Tunnel Concentrator uses the following
logic:
- Tunnel Concentrator stores IP
address - MAC address mappings that it learns from DHCP packets, or
from the source IP address of packets that ingress over a GRE
tunnel.
- Tunnel Concentrator does not store
mappings that it learns from the bridged portion of the
network.
To respond to ARP requests, Tunnel Concentrator does a lookup of
its local ARP table for a MAC address that maps to the target IP address
from the ARP request and responds as per these rules:
- If the ARP lookup
succeeds, Tunnel Concentrator returns an ARP
response to the sender directly with the correct MAC address.
- If the ARP lookup
fails, Tunnel Concentrator forwards the
ARP broadcast to the bridged network. Tunnel Concentrator does not
forward ARP broadcasts to GRE tunnels.
- Statistics Collection for ExtremeCloud IQ
- Performance improvements for
statistics collection when you integrate with ExtremeCloud IQ.
