Allied Telesis 86222-21 Manuale di istruzioni

Simply connecting the world

Patch Release Note

Patch 86222-21

For Rapier Switches and AR800 Series

Modular Switching Routers

Introduction

This patch release note lists the issues addressed and enhancements made in

patch 86222-21 for Software Release 2.2.2 on existing models of Rapier L3

managed switches and AR800 Series L3 modular switching routers. Patch file

details are listed in Table 1.

This release note should be read in conjunction with the following documents:

■Release Note: Software Release 2.2.2 for Rapier Switches, AR300 and

AR700 Series Routers, and AR800 Series Modular Switching Routers

(Document Number C613-10313-00 Rev A) available from

www.alliedtelesyn.co.nz/documentation/documentation.html.

■Rapier Switch Documentation Set for Software Release 2.2.1 available on

the Documentation and Tools CD-ROM packaged with your switch, or

from www.alliedtelesyn.co.nz/documentation/documentation.html.

■AR800 Series Modular Switching Router Documentation Set for Software

Release 2.2.1 available on the Documentation and Tools CD-ROM

packaged with your switching router, or from www.alliedtelesyn.co.nz/

documentation/documentation.html.

WARNING: Using a patch for a different model or software release may cause

unpredictable results, including disruption to the network. Information in this

release note is subject to change without notice and does not represent a

commitment on the part of Allied Telesyn International. While every effort has

been made to ensure that the information contained within this document and

the features and changes described are accurate, Allied Telesyn International

can not accept any type of liability for errors in, or omissions arising from the

use of this information.

Table 1: Patch file details for Patch 86222-21.

Base Software Release File 86s-222.rez

Patch Release Date 03-Oct-2002

Compressed Patch File Name 86222-21.paz

Compressed Patch File Size 408864 bytes

2Patch Release Note

Patch 86222-21 for Software Release 2.2.2

C613-10319-00 REV T

Features in 86222-21

Patch 86222-21 includes all issues resolved and enhancements released in

previous patches for Software Release 2.2.2, and the following enhancements:

Locally generated ICMP messages, that were passed out through a firewall

interface because they were associated with another packet flow, had their

source address changed to that of the associated packet flow and were also

forwarded with incorrect IP checksums. This only occurred when there was

no NAT associated with the packet flow. This issue has been resolved.

Sometimes the retransmission of an FTP packet was not permitted through

the Firewall. This issue has been resolved.

VRRP returned an incorrect MAC address for an ARP request. This issue

has been resolved.

In some situations, multihomed interfaces caused the Firewall to apply

NAT and rules incorrectly when packets were received from a subnet that

was not attached to the receiving interface. This issue has been resolved.

An ARP entry for a host has been removed whenever a DHCP DISCOVER

or DHCP REQUEST message is received from the host. This allows for

clients changing ports on a switch.

The sequence number extracted from the AH and ESP header was in the

wrong endian mode, which caused an FTP error with IPSEC anti-replay.

This issue has been resolved.

When acting as a PPPoE Access Concentrator (AC), if a PPPoE client sent

discovery packets without the "host-unique" tag, the discovery packets sent

by the AC were corrupted. This issue has been resolved.

IGMP failed to create an automatic IGMP membership with no joining port

when it received multicast data that no ports were interested in, when IP

TimeToLive was set to 1 second. Also, IGMP erroneously sent a query on an

IGMP enabled IP interface even when IGMP was disabled. These issues

have been resolved.

PCR: 02167 Module: FIREWALL Network affecting: No

PCR: 02236 Module: FIREWALL Network affecting: No

PCR: 02245 Module: VRRP Network affecting: No

PCR: 02327 Module: IPG/FIREWALL Network affecting: No

PCR: 02329 Module: DHCP Network affecting: No

PCR: 02332 Module: IPSEC Network affecting: No

PCR: 02343 Module: PPP Network affecting: No

PCR: 02368 Module: IPG/IGMP Network affecting: No

Patch 86222-21 For Rapier Switches and AR800 Series Modular Switching Routers 3

Patch 86222-21 for Software Release 2.2.2

C613-10319-00 REV T

In the ADD SWITCH L3FILTER command, the EPORT parameter

incorrectly accepted the value 62-63 as multicast and broadcast ports 63-64.

This issue has been resolved.

After a prune lifetime had expired, the interface was not joined back to the

DVMRP multicast delivery tree. This issue has been resolved.

DVMRP multicast forwarding failed to send tagged packets to a tagged

port. Packets were erroneously sent untagged to tagged ports. This issue

has been resolved.

Features in 86222-20

Patch file details for Patch 86222-19 are listed in Table 3:

Patch 86222-20 includes all issues resolved and enhancements released in

previous patches for Software Release 2.2.2, and the following enhancements:

The IGMP specific query sent by the router/switch now contains the correct

default response time of 1 second. Also, ifOutOctets in the VLAN interface

MIB now increments correctly.

If a port did not belong to an ethernet interface, or was not directly

connected to the seed port it could not receive advertised router numbers.

This issue has been resolved.

When an interface went down (or was disabled) on an AS border router, the

external routes were not removed from the routing domain. Such routes are

now removed by premature aging.

Proxy Arp can now be used on VLAN interfaces.

PCR: 02374 Module: SWI Network affecting: No

PCR: 02397 Module: DVMRP Network affecting: No

PCR: 02404 Module: IPG Network affecting: No

Table 2: Patch file details for Patch 86222-20.

Base Software Release File 86s-222.rez

Patch Release Date 23-Aug-2002

Compressed Patch File Name 86222-20.paz

Compressed Patch File Size 397708 bytes

PCR: 01226 Module: IGMP Network affecting: Yes

PCR: 01270 Module: APPLE Network affecting: No

PCR: 01285 Module: OSPF Network affecting: No

PCR: 02024 Module: IPG Network affecting: No

4Patch Release Note

Patch 86222-21 for Software Release 2.2.2

C613-10319-00 REV T

A fatal error sometimes occurred if a TCP session originating on the public

side of the firewall sent packets before the session was established with the

host on the private side of the firewall. This issue has been resolved.

Some FTP packets handled by the firewall were forwarded with incorrect

sequence numbers, causing FTP sessions to fail. This issue has been

resolved.

When passing 64-bit counters in an SNMP packet, only the lower 32 bits

were passed. Now the full 64 bits of the counter will be returned if all are

required.

When a TCP RST/ACK was received by a firewall interface, the packet that

was passed to the other side of the firewall lost the ACK flag, and had an

incorrect ACK number. This issue has been resolved.

The IP Filter SIZE parameter was not being applied correctly. This issue has

been resolved.

The SET IP FILTER command would not update the SIZE parameter

correctly. This issue has been resolved.

The TOS field in IP packets was not being processed by IP POLICY filters

with an identifier greater than 7. This issue has been resolved.

A feature has been added that makes pings pass from the source IP address

of the public interface to the IP address on the private interface in the

firewall.

If a port on a Rapier 48 or Rapier 48 i went down, some associated entries

were not promptly removed from the forwarding, Layer 3 and default IP

tables. This issue has been resolved.

This PCR includes the following enhancements:

• A new command, SET DHCP EXTENDID allows for multiple DHCP

clients, and handling of arbitrary client IDs on the server.

• Static DHCP entries now return to the correct state when timing out.

• DHCP entry hashes now have memory protection to prevent fatal

errors.

• DHCP client now retransmits XID correctly.

PCR: 02122 Module: FIREWALL Network affecting: No

PCR: 02128 Module: FIREWALL Network affecting: No

PCR: 02150 Module: CORE, SNMP Network affecting: No

PCR: 02158 Module: FIREWALL Network affecting: No

PCR 02161 Module: IPG Network affecting: No

PCR 02162 Module: IPG Network affecting: No

PCR 02172 Module: IPG Network affecting: No

PCR: 02174 Module: FIREWALL Network affecting: No

PCR: 02195 Module: SWI Network affecting: No

PCR: 02198 Module: DHCP Network affecting: Yes

Patch 86222-21 For Rapier Switches and AR800 Series Modular Switching Routers 5

Patch 86222-21 for Software Release 2.2.2

C613-10319-00 REV T

• Lost OFFER messages on the server are now handled correctly.

• The DHCP server now correctly handles DHCP clients being moved to

a different interface on the DHCP server after they’ve been allocated an

IP address.

Responses to DNS requests received by a DNS relay agent, and forwarded

to the DNS server, were returned to the requester with a source IP address

of the DNS server rather than the DNS relay agent. This issue has been

resolved.

Log messages are no longer stored in NVS.

A buffer leak occurred when a large number of flows (over 4000) were in use

and needed to be recycled. This issue has been resolved.

When the only feature licence in the feature licence file was disabled, the

licence file stored on FLASH memory did not change. This was due to a

previous enhancement in PCR 02184 which prevented existing files being

deleted before a new version was stored. This issue has been resolved.

The EPORT parameter in the ADD SWITCH L3FILTER ENTRY and SET

SWITCH L3FILTER ENTRY commands was matching multicast and

broadcast packets with software filtering. This issue has been resolved.

Some switch chip register values have been changed to improve QoS

support on Rapier G6 and Rapier G6f switches.

The PURGE IP command now resets the IP route cache counters to zero.

On a Rapier 24, adding an IP interface over a FR interface caused an

ASSERT debug fatal error. This issue has been resolved.

The ARL entry for the virtual router MAC was incorrectly showing a

numerical value. The entry now shows the CPU’s port value.

Sometimes the Firewall erroneously used NAT. This issue has been

resolved.

A dual Ethernet router was incorrectly accepting an IP address from a

DHCP server when the offered address was on the same network as the

other Ethernet interface. An error is now recorded when DHCP offers an

address that is in the same subnet as another interface.

PCR: 02203 Module: IPG Network affecting: No

PCR: 02208 Module: LOG Network affecting: No

PCR: 02214 Module: IPG Network affecting: No

PCR: 02215 Module: FILE Network affecting: No

PCR: 02220 Module: SWI Network affecting: No

PCR: 02224 Module: SWI Network affecting: No

PCR: 02229 Module: IPG Network affecting: No

PCR: 02242 Module: IPG Network affecting: No

PCR: 02246 Module: VRRP Network affecting: No

PCR: 02250 Module: FIREWALL Network affecting: No

PCR: 02259 Module: DHCP, IPG Network affecting: No

6Patch Release Note

Patch 86222-21 for Software Release 2.2.2

C613-10319-00 REV T

When a ‘\n’(LF) character was received, the router/switch did not

recognise this as the termination of a command over Telnet. This issue has

been resolved.

Responses to MX record requests were not handled correctly if the preferred

name in the MX record differed from the one that was requested. This issue

has been resolved.

The virtual MAC address was used as the source MAC for all packets

forwarded on an interface associated with a Virtual Router (VR). This was

confusing when multiple VRs were defined over the same interface because

only one virtual MAC address was ever used. The other virtual MAC

addresses (for the other VR's) were only used if the source IP address

matched the VR’s IP address. To avoid this confusion, the system MAC

address is now always used unless the source IP address of the packet is the

same as the VR’s IP address.

PIM or DVMRP failed to see any data if IGMP snooping was on and

DVMRP or PIM was enabled after the data stream had reached the router/

switch. This issue has been resolved.

MAC address lists were not working with Firewall rules. This issue has

been resolved.

HTTP requests from a fixed IP address were erroneously reported as a host

scan attack in the Firewall deny queue. This issue has been resolved.

Under certain circumstances, the Asyn Loopback Test failed. This issue has

been resolved.

ARL message interrupts have been re-enabled after a software table rebuild

to fix synchronisation of the software forwarding database with the

hardware table.

Some routes were not added into the OSPF route list, and therefore were not

added into the IP route table. This issue has been resolved.

The CREATE CONFIG command did not save the SOURCEPORT

parameter to the configuration file when the low value of the source port

range was set to zero. This issue has been resolved.

PCR: 02260 Module: TTY Network affecting: No

PCR: 02262 Module: DNS Network affecting: No

PCR: 02263 Module: VRRP Network affecting: No

PCR: 02264 Module: PIM, DVMRP, SWI Network affecting: No

PCR: 02265 Module: FIREWALL Network affecting: No

PCR: 02268 Module: FIREWALL Network affecting: No

PCR: 02269 Module: DUART, TM Network affecting: No

PCR: 02274 Module: TPAD Network affecting: No

PCR: 02275 Module: OSPF Network affecting: No

PCR: 02276 Module: FIREWALL Network affecting: No

Patch 86222-21 For Rapier Switches and AR800 Series Modular Switching Routers 7

Patch 86222-21 for Software Release 2.2.2

C613-10319-00 REV T

Existing IGMP groups were not deleted when IGMP was disabled globally

or on the associated interface. This gave the groups very high timeout

values. This issue has been resolved.

If a packet with a destination IP address equal to a VRRP IP address was

received when the router didn’t own the IP address, (because it didn’t have

an interface with that IP address) the router incorrectly tried to forward the

packet and send an ICMP “redirect” message to the source. Now, if such a

packet is received, it will be discarded and an ICMP “host unreachable”

message will be sent to the source.

VRRP used the wrong source IP address in ICMP redirects. RFC 2338 states

that the source IP address of ICMP redirects should be the IP address that

the end host used when making its next hop routing decision. In the case of

a packet sent to a VRRP virtual MAC address, this is the primary VRRP IP

address associated with the MAC address, provided such a VR exists and is

in the master state. This issue has been resolved.

The SIZE functionality on the IP filter was not working for IP fragmented

packets. This issue has been resolved.

Features in 86222-19

Patch file details for Patch 86222-19 are listed in Table 3:

Patch 86222-19 includes all issues resolved and enhancements released in

previous patches for Software Release 2.2.2, and the following enhancements:

When OSPF was calculating routes from an AS external LSA and the AS

external router had two next hops with different metrics, the router

erroneously added two routes instead of one route with the best metric. This

issue has been resolved. Also, when the two equal cost routes were on the

same IP interface, but to different next hops, the router sent the packets to

the wrong MAC address. This issue has been resolved.

PCR: 02287 Module: IPG Network affecting: No

PCR: 02299 Module: VRRP Network affecting: No

PCR: 02304 Module: VRRP Network affecting: No

PCR: 02317 Module: IPG Network affecting: No

Table 3: Patch file details for Patch 86222-19.

Base Software Release File 86s-222.rez

Patch Release Date 11-Jun-2002

Compressed Patch File Name 86222-19.paz

Compressed Patch File Size 364584 bytes

PCR: 02018 Module: OSPF Network affecting: No

8Patch Release Note

Patch 86222-21 for Software Release 2.2.2

C613-10319-00 REV T

STP always transmits untagged packets. If a port does not belong to a

VLAN as an untagged port, then the port must belong to one VLAN as a

tagged port. In this case, STP should transmit VLAN tagged packets out of

the port.

The IP, MASK, and ACTION parameters could not be set with the SET IP

ROUTE FILTER command. This issue is resolved when the filter number is

specified at the start of the command, for example:

SET IP ROUTE FILTER=filter-id IP=ipadd MASK=ipadd

ACTION={INCLUDE|EXCLUDE}

where: filter-id is the filter number. Filter numbers are displayed in the

output of the SHOW IP ROUTE FILTER command.

The built in Self Test Code for all Rapiers, except G6, has been improved to

enhance the detection of faults in switch chip external packet memory.

An AS boundary router advertises AS external LSAs to other routers.

However, when the router’s configuration changed, either by adding an IP

route filter, or by setting its ASEXTERNAL parameter to OFF using the SET

OSPF ASEXTERNAL command followed by a restart, its neighbour state

could not reach full state. Also, when the router had IP route filters

configured, matched routes were not being flooded into other routers.

However, these routes should still have been imported into the router’s

own LSA database, but were not. These issues have been resolved.

The IPG module has been enhanced to support gratiutous ARP request and

ARP reply packets.

The Rapier was not detecting invalid checksums in ICMP echo request

packets. This issue has been resolved. ICMP echo request packets with

invalid checksums are now dropped and the ICMP inErrors and inDiscards

counters are incremented.

A simple DHCP range MIB and a trap have been added. The trap is

triggered when a DHCP request cannot be satisfied. The gateway address

and the interface address are sent as trap variables. The range table shows

which range was exhausted. A debug variable,

swiDebugBroadcomParityErrors has been added to the SWI module MIB to

count the SDRAM parity errors in the packet memory of the Broadcom

switch chip.

Packets traversing in and out of the same public firewall interface were

sometimes blocked. The firewall should only control packets passing

between a public and a private interface. This issue has been resolved.

PCR: 02098 Module: STP Network affecting: No

PCR: 02123 Module: IPG Network affecting: No

PCR 02138 Module: SWI Network affecting: No

PCR 02140 Module: OSPF Network affecting: No

PCR 02144 Module: IPG Network affecting:No

PCR 02151 Module: IPG Network affecting: No

PCR 02164 Module: DHCP Network affecting: No

PCR 02176 Module: FIREWALL Network affecting: No

Patch 86222-21 For Rapier Switches and AR800 Series Modular Switching Routers 9

Patch 86222-21 for Software Release 2.2.2

C613-10319-00 REV T

When a file upload was interrupted, the file being uploaded was not

unlocked. The file could not be deleted without restarting the router. This

issue has been resolved.

RIP was incorrectly sending triggered request packets over VLANs, even on

non-demand links. This issue has been resolved.

When VRRP responded to an ARP request for the VR IP address it was not

making an entry in the ARP table and the switch L3 table. This issue has

been resolved.

Features in 86222-18

Patch file details for Patch 86222-18 are listed in Table 4:

There is no patch release 86222-17 because this patch was withdrawn.

Patch 86222-18 includes all issues resolved and enhancements released in

previous patches for Software Release 2.2.2, and the following enhancements:

In some situations, the switch would stop forwarding packets via internal

and/or external uplink ports. This issue has been resolved.

If a flash write error occurred when a file was being written, the file’s

directory entry was deleted leaving a partial file in flash. Subsequent

attempts to write the file failed because a file of the same name already

existed. This issue has been resolved.

In configurations containing a large number of OSPF routes, the SPF

calculation could take a long time. During this calculation, other events

would not be processed. This patch reduces the time required for an SPF

calculation and allows the switch to respond to other events in the mean

time. This patch also improves the performance of flow cache updates.

PCR 02181 Module: LOAD Network affecting: No

PCR 02186 Module: IPG Network affecting: No

PCR 02188 Module: VRRP Network affecting: No

Table 4: Patch file details for Patch 86222-18.

Base Software Release File 86s-222.rez

Patch Release Date 6-May-2002

Compressed Patch File Name 86222-18.paz

Compressed Patch File Size 342720 bytes

PCR: 02041 Module: SWI Network affecting: No

PCR: 02073 Module: FILE Network affecting: No

PCR: 02075 Module: OSPF, IPG Network affecting: No

10 Patch Release Note

Patch 86222-21 for Software Release 2.2.2

C613-10319-00 REV T

If the FILE module was required to re-write a file, the existing file would be

deleted before the size of the new file was known. This issue has been

resolved.

OSPF virtual links running across a single network segment would accept

0.0.0.0 as the next hop address. This was inherited by derivative routes,

making them unusable. This issue has been resolved.

If a file ended short of an erase block boundary and a compaction was

started, the block in which the file was stored was not erased, causing errors

when new files were written. Also, if the last file in the filing system ended

on or short of an erase block boundary, and a compaction was started, then

compaction would fail. These issues have been resolved.

Port mirroring on the Rapier 48 and 48i was not operating correctly because

Destination Lookup Failure (DLF) frames were sent from the mirror port.

This issue has been resolved.

The software routing performance of the Rapier 48 and Rapier 48i has been

enhanced.

The layer 3 hardware table was not sorted properly when it contained a

very wide range of IP addresses (eg. 10.0.0.1 - 205.33.3.1). This caused a

small number of packets to be routed by software rather than hardware.

This issue has been resolved.

The periodic and time trigger counts were incrementing by two instead of

one on each update. This issue has been resolved.

An error occurred when the FLASH write driver was required to write

values that were not long-word aligned and were at the driver’s page

boundary. The driver attempted to write into the next section of memory. It

also attempted to read the status of this section of memory, and

misinterpreted the result as a low Vpp voltage. Also, errors occurred during

FLASH compaction. These issues have been resolved.

PCR: 02081 Module: FILE, FFS Network affecting: No

PCR: 02082 Module: OSPF Network affecting: Yes

PCR: 02086 Module: FFS Network affecting: No

PCR: 02088 Module: SWI Network affecting: No

PCR: 02095 Module: SWI Network affecting: No

PCR: 02101 Module: SWI Network affecting: No

PCR: 02104 Module: TRG Network affecting: No

PCR: 02105 Module: FFS Network affecting: No

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