Dell PowerConnect 6224 Release Note

Also see for PowerConnect 6224: Configuration guide User guide Command line interface guide Specifications Planning and preparation guide

Contents

PowerConnect 6224/6224F/6224P/6248/6248P Release NotesSystem Firmware Version 3.2.0.6 Page 7¾ Ping/Traceroute EnhancementsNew ping options have been added to allow the user to specify the number and size of echo requests andthe interval between echo requests. A ping can now be initiated via SNMP using the MIB defined in RFC2925.New traceroute options have been added to allow the user to specify the initial and maximum time to live(TTL) in probe packets, the maximum number of failures before termination, the number of probes sent foreach TTL, and the size of each probe. A trace route can be initiated in the web and SNMP user interfaces.¾ Static Reject RoutesAllows the user to configure a static route to discard the packets to a particular destination, thereby forcinga black-hole routing behavior for a particular set of IP prefixes.This can be done for the following reasons:• Prevent a routing loop in the network (default route configured on a router).• A preventive measure against a DOS attack on a router with unwanted destination addresses.¾ Clear ARP Cache Management PortA new CLI command has been added to enable clearing of the ARP table of entries learned from themanagement port.¾ OSPFv2 Point-to-Point LinksOSPF can treat an interface as a point-to-point circuit, even though the physical network is a broadcastnetwork. This simplifies OSPF operation on the link. OSPF does not elect a designated router for a point-to-point network, and does not generate a network LSA to represent a point-to-point network in the linkstate topology. This mode of operation is useful when there are only two routers attached to the link (eithera physical or virtual LAN).In point-to-point mode, OSPF joins the AllSPFRouters multicast group on the interface and sends all OSPFpackets on the interface to AllSPFRouters. OSPF accepts packets received on point-to-point interfaces evenif the source IP address is not on a local subnet.¾ OSPVv2/v3 Summary Reject RoutesThe area address range advertised by OSPF router at area boundaries as summary route into another areacan lead to routing loops in some situations. This feature can avoid situations where a routing loop canoccur in a network.¾ OSPF v2/v3 Passive InterfacesAllows passive interfaces for OSPF implementations.