Allied Telesis 86222-27 manual This enhancement introduces three new commands

Page 40

40	Patch Release Note

Enable and Disable ICMP Messages

The Internet Control Message Protocol (ICMP) allows routers to send error and control messages to other routers or hosts. It provides the communication between IP software on one system and IP software on another.

This enhancement allows the switch to enable or disable some ICMP messages when directed by the network manager.

The ICMP messages that are able to be enabled or disabled are:

■Network unreachable (RFC792 Type 3 Code 0)

■Host unreachable (RFC792 Type 3 Code 1)

■ICMP redirect messages (RFC792 Type 5 Code 0, 1, 2, 3)

Network Unreachable

This message indicates that the switch does not know how to reach the destination network.

Host Unreachable

This message indicates that the switch does not know how to reach the host.

ICMP Redirect

This message is sent to a local host to tell it that its target is located on the same LAN (no routing is required) or when it detects a host using a non-optimal route (usually because a link has failed or changed its status) on a directly connected router to advise of a better route to a particular destination.

For more information on ICMP, see the IP Chapter in your switch’s Software

Reference manual.

Commands

This enhancement introduces three new commands:

■DISABLE IP ICMPREPLY

■ENABLE IP ICMPREPLY

■SHOW IP ICMPREPLY

DISABLE IP ICMPREPLY

Syntax DISABLE IP ICMPREPLY[={ALLNETUNREACHHOSTUNREACHREDIRECT}]

Description This command disables ICMP reply messages.

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

Image 40

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