This enhancement modifies one command | Allied Telesis 86222-27

42	Patch Release Note

Table 25: Parameters in the output of the SHOW IP ICMPREPLY command.

Parameter	Meaning

ICMP Reply Messages	A list of ICMP configurable reply messages and whether
	they are enabled or disabled.

IGMP Snooping All-Group Entry

Because IGMP is an IP-based protocol, multicast group membership for VLAN aware devices is on a per-VLAN basis. If at least one port in the VLAN is a member of a multicast group, multicast packets will be flooded onto all ports in the VLAN by default.

IGMP snooping enables the switch to forward multicast traffic intelligently on the switch. The switch listens to IGMP membership reports, queries and leaves messages to identify the switch ports that are members of multicast groups. Multicast traffic will only be forwarded to ports identified as members of the specific multicast group.

This enhancement allows network managers to prevent specified ports from acting as IGMP all-group ports, and specify which ports are allowed to behave as all-group entry ports, by using the ENABLE IP IGMP ALLGROUP command.

For example, consider a video streaming service which has 15 channels. When the switch receives IGMP membership reports destined for the address

239.0.0.2from an unauthorised user, all 15 channels of multicast data floods to that port, which may affect the service of the network. In order to avoid this, the network manager decides whether or not to allow a particular port to behave as an IGMP all-group port, e.g. port 8. Then, whenever the above IGMP membership report is sent, the switch will not automatically add port 8 as one of the egress ports for any IGMP membership report group, so video streaming will not get forwarded to disabled all-group ports selected by the network manager.

Commands

This enhancement modifies one command:

■SHOW IP IGMP

and has two new commands:

■ENABLE IP IGMP ALLGROUP

■DISABLE IP IGMP ALLGROUP

Patch 86222-27 for Software Release 2.2.2 C613-10319-00 REV Z

Image 42

Allied Telesis 86222-27 manual This enhancement modifies one command, Has two new commands

Contents

Patch For Rapier Switches PCR Module IPG Level PCR 03615 Module Load LevelPCR Module STP, SWI Level PCR Module SWI Level PCR 02498 Module Vlan Network affecting NoPCR Module Firewall Level PCR Module IPG, SWI Level PCR 03465 Module Dhcp Level PCR 03438 Module Dhcp LevelPCR Module Ospf Level PCR Module NTP Level PCR Module STP Level PCR Module Firewall Network affecting NoPCR Module Network affecting No PCR Module TCP Level PCR Module Vrrp Level PCR 03217 Module Dvmrp Level Some issues with Dvmrp forwarding have been resolvedPCR 03202 Module Core Level PCR 03218 Module Dvmrp Level PCR 03346 Module Snmp Level PCR Module FILE, INSTALL, SCR LevelPCR Module TTY Level PCR 03378 Module Dhcp Level PCR Module NTP Network affecting No PCR Module FIREWALL/IP NAT Network affecting No PCR Module IPG Network affecting No PCR Module IPG Ping Network affecting NoPCR Module Ospf Network affecting No PCR 03027 Module Dhcp Network affecting No PCR 03095 Module Dhcp Level PCR 03067 Module Dhcp LevelPCR 03080 Module Dvmrp PCR 02574 Module Dvmrp Network affecting No PCR 02587 Module OSPFNetwork affecting No PCR 03012 Module TTYNetwork affecting NoPCR Module FFS File TTY Network affecting No PCR 02396 Module Dhcp Network affecting No PCR Module IP Network affecting NoPCR Module VRRP, TRG Network affecting No PCR Module CORE, FFS, File Network affecting No PCR Module TTY Network affecting No PCR 02427 Module Dhcp Network affecting NoPCR Module DVMRP, IPG Network affecting No PCR Module OSPF, IPG Network affecting No PCR 02329 Module Dhcp Network affecting No PCR Module Vrrp Network affecting NoPCR Module IPG/FIREWALL Network affecting No PCR Module Ipsec Network affecting No Patch file details for Patch 86222-20 are listed in Table PCR Module IPG/IGMP Network affecting NoPCR 02397 Module Dvmrp Network affecting No PCR Module Igmp Network affecting Yes Proxy Arp can now be used on Vlan interfaces PCR Module CORE, Snmp Network affecting NoPCR 02198 Module Dhcp Network affecting Yes PCR Module LOG Network affecting No Log messages are no longer stored in NVSPCR Module File Network affecting No PCR Module PIM, DVMRP, SWI Network affecting No PCR Module DHCP, IPG Network affecting NoPCR Module DNS Network affecting No PCR Module DUART, TM Network affecting No Patch file details for Patch 86222-19 are listed in Table PCR Module STP Network affecting No PCR Module IPG Network affectingNoPCR Module Dhcp Network affecting No PCR Module Load Network affecting No Patch file details for Patch 86222-18 are listed in Table PCR Module FFS Network affecting No PCR Module FILE, FFS Network affecting NoPCR Module Ospf Network affecting Yes PCR Module TRG Network affecting No Patch file details for Patch 86222-15 are listed in Table Patch file details for Patch 86222-16 are listed in TablePCR 02099 Module Dhcp Network affecting No PCR 02015 Module Snmp Network affecting No PCR 02035 Module Vlan Network affecting No PCR Module Switch Network affecting NoStatic ARPs can now be added to tagged vlans PCR Module Ping Network affecting No Patch file details for Patch 86222-13 are listed in Table PCR Module Telnet Network affecting No PCR 01257 Module Dhcp Network affecting No Has been added to the following commandsPatch file details for Patch 86222-12 are listed in Table PCR Module IPG/VRRP Network affecting No PCR 01276 Module SWINetwork affecting No PCR 01274 Module SWINetwork affecting NoPCR 01275 Module FIREWALLNetwork affecting No PCR 01287 Module OSPFNetwork affecting No PCR Module IPG, VLAN, SWI Network affecting No PCR 02007 Module Dhcp Network affecting NoPCR Module Trigger Network affecting No Patch file details for Patch 86222-11 are listed in Table Patch file details for Patch 86222-10 are listed in Table Patch file details for Patch 86222-09 are listed in TablePCR Module STP, SWI Network affecting Yes PCR Module SWI, CORE, IPG Network affecting No PCR Module PRI Network affecting NoPatch file details for Patch 86222-08 are listed in Table PCR 01018 Module Dhcp Network affecting No PCR Module L2TP Network affecting YesPCR Module PIM Network affecting No PCR Module IPG,FIREWALL Network affecting No PCR Module Q931 Network affecting No PCR Module Http Network affecting NoPCR Module L2TP, IPG Network affecting No PCR Module TCP Network affecting No PCR 01216 Module STPNetwork affecting No PCR 01209 Module ISAKMPNetwork affecting NoPCR 01214 Module SWINetwork affecting No PCR 01219 Module VLAN,SWINetwork affecting No Patch file details for Patch 86222-06 are listed in Table PCR Module PKI Network affecting No Patch file details for Patch 86222-05 are listed in TablePCR Module Core Network affecting No PCR Module IPv6 Network affecting No Patch file details for Patch 86222-04 are listed in Table PCR 01186 Module FIREWALLNetwork affecting NoPCR 01187 Module IPGNetwork affecting No PCR Module CORE, SWI Network affecting No PCR 01165 Module Dhcp Network affecting No PCR 01167 Module Enco Network affecting NoPCR Module ETH, Trigger Network affecting No Patch file details for Patch 86222-01 are listed in Table PCR 01100 Module Dhcp Network affecting NoPKI enrolment no longer causes message validation to fail This enhancement introduces three new commands Description This command disables Icmp reply messages See Also Enable IP Icmpreply See Also Enable IP Echoreply This enhancement modifies one command Has two new commands Examples To show information about IGMP, use the command See Also Enable IP Igmp Allgroup New Commands See Also Disable IP Igmp Allgroup Availability Disable IP Igmp Allgroup