Allied Telesis Patch 54266-02 Bedienungsanleitung

Simply connecting the world

Patch Release Note

Patch 54266-02

For AR440S and AR441S ADSL Routers

Introduction

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

patch 54266-02 for Software Release 2.6.6 on existing models of AR440S and

AR441S ADSL 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 2.6.6 for AR440S ADSL Routers (Document

Number C613-10412-00) available from www.alliedtelesyn.co.nz/

documentation/documentation.html.

■AR400 Series router Documentation Set for Software Release 2.6.6 available

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

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

■Errata to the Documentation: Software Release 2.6.6 for AR440S ADSL

Routers (Document Number C613-06011-00) available 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 54266-02.

Base Software Release File 54-266.rez

Patch Release Date 9-Dec-2004

Compressed Patch File Name 54266-02.paz

Compressed Patch File Size 246872 bytes

2 Features in 54266-02 Patch Release Note

Patch 54266-02

C613-10417-00 Rev B

Some of the issues addressed in this Release Note include a level number. This

number reflects the importance of the issue that has been resolved. The levels

are:

From Patch 54266-02 onwards, issues for each patch are listed in severity order as per

the levels above. Enhancement PCRs are listed after Level 4 issues.

Features in 54266-02

Patch 54266-02 includes the following enhancements and resolved issues:

Level 1

When an L2TP call was activated over any ATM link (PPPoA, PPPoEoA,

IPoA e.t.c.) a router reboot would occur. This issue has been resolved.

Level 2

Out of sequence IPSEC packets could cause a router reboot. This issue has

been resolved.

The router learned an ARP entry for an IP address that was already

configured on one of its interfaces. This issue has been resolved, and the

receipt of spoofed ARP packets will now generate a log message.

When PIM-SM was configured and a very large number of IGMP v2 joins

were received, a router reboot would occur. This issue has been resolved.

A router reboot was observed when a large number of IP flows were being

deleted when an interface went down. This issue has been resolved.

Level 1 This issue will cause significant interruption to network services, and

there is no work-around.

Level 2 This issue will cause interruption to network service, however there

is a work-around.

Level 3 This issue will seldom appear, and will cause minor inconvenience.

Level 4 This issue represents a cosmetic change and does not affect network

operation.

PCR: 40660 Module: ATM Level: 1

PCR: 40266 Module: IPSEC Level: 2

PCR: 40272 Module: IPG Level: 2

PCR: 40284 Module: PIM Level: 2

PCR: 40311 Module: IPG Level: 2

Patch 54266-02 3

Patch 54266-02

C613-10417-00 Rev B

If OSPF was configured using the command set ospf dyninterface=stub, to

advertise dynamic interfaces such as PPPoE interfaces as stub links, the

links were not being advertised as expected. This issue has been resolved.

When an IPSEC policy is used on a PPP link with iprequest=on, when the

PPP link goes down and IPSEC has traffic to transmit, IPSEC repeatedly

attempts to activate the PPP link again. The frequency of the reactivation

attempts has been reduced.

In certain situations, if a DHCP client used a DHCP relay agent to request

IP addresses from the router acting as the DHCP server on a different

subnet, it was not be able to renew the IP address allocated to it. This issue

has been resolved.

IGMP entries were sometimes changed to static entries rather than being

deleted when IGMP leaves were received. This issue has been resolved.

The "number of hits" counter in firewall's application rules was not

incremented correctly. This issue has been resolved.

Particular IP packets (unicast destination IP, but multicast destination MAC)

could result in a memory leak, which in some cases could cause the device to

stop responding to the command line. This issue has been resolved.

The enable switch learning command would fail if 802.1X port

authentication was enabled on any of the switch ports. This issue has been

resolved.

The router was accepting network RIP packets from foreign subnets. This

issue has been resolved.

The router could reboot when a user changed the Rendezvous Point

Candidate (RPC) priority in the PIM6 module. This issue has been resolved.

PCR: 40419 Module: OSPF, IPG Level: 2

PCR: 40442 Module: IPSEC Level: 2

PCR: 40446 Module: DHCP Level: 2

PCR: 40450 Module: IPG Level: 2

PCR: 40451 Module: FIREWALL Level: 2

PCR: 40453 Module: PIM Level: 2

PCR: 40456 Module: IPG Level: 2

PCR: 40458 Module: IPG Level: 2

PCR: 40465 Module: PIM6, PIM4 Level: 2

4 Features in 54266-02 Patch Release Note

Patch 54266-02

C613-10417-00 Rev B

When the router was the initiator in an ISAKMP Quick mode exchange with

a PC running Windows 2000 or Windows XP, the IPSEC communication

would not establish successfully. This was because the Windows PC set the

commit bit in the exchange, but sent the CONNECTED Notify payload in

the Quick mode exchange. However, the router was waiting for an

Informational Exchange containing a Notify payload (with the

CONNECTED Notify Message) as specified by RFC 2408. Because an

Informational message was expected, the device did not process the Quick

mode CONNECTED message, and so the exchange was never committed.

Although this behaviour is described as "not required by the IKE standard"

[http://www.microsoft.com/technet/community/columns/cableguy/

cg0602.mspx], the device will now process CONNECTED messages

received in Quick mode exchanges, to allow interoperability with other

vendors.

When BGP redistributed routes, locally imported routes were selected

rather than peer learnt routes. This issue has been resolved.

For OSPF-originated routes, it was possible for a route to be deleted from

the IP routing table, but still be referenced by OSPF. This could cause a

router reboot when later generating a summary LSA that contained the old

route. This occurred using the reset ip command. This issue has been

resolved.

When DHCP is enabled, it reclaims IP addresses at router startup to

determine if the addresses are in use or not. If, during this process, DHCP

was disabled then re-enabled, the router would not attempt to reclaim the

remaining IP address ranges. This would lead to the rejection of DHCP

requests for IP addresses that were still being reclaimed. This issue has been

resolved.

While initialising a range, the router acting as a DHCP server may release a

dynamic entry incorrectly. This issue has been resolved.

Multicast data could not flow from PIM to DVMRP on a PIM/DVMRP

border router. This issue has been resolved.

When both Load Balancer and Firewall were configured, the very first TCP

session was established after rebooting. Subsequent TCP session startup

packets may have been routed out to an incorrect interface causing sessions

to not be established. This issue has been resolved.

PCR: 40466 Module: ISAKMP Level: 2

PCR: 40470 Module: BGP Level: 2

PCR: 40479 Module: OSPF Level: 2

PCR: 40496 Module: DHCP Level: 2

PCR: 40516 Module: DHCP Level: 2

PCR: 40520 Module: DVMRP Level: 2

PCR: 40530 Module: IPG Level: 2

Patch 54266-02 5

Patch 54266-02

C613-10417-00 Rev B

When the status of an interface changed, the BGP revaluation of IP routes

for redistribution (via the add bgp import or add bgp network commands)

was incorrect. This gave inconsistent BGP route tables depending on the

order of events. This issue has been resolved.

The receipt of two IP packets whose destination IP addresses were subnet

addresses caused the router to reboot. This issue has been resolved.

A router reboot could occur when the DHCP server checked whether an IP

address was being used by other hosts, for example, after processing a

DHCP Discover message. This issue occurred if probe=arp was specified

for the DHCP range, and if DHCP had been disabled and then enabled. This

issue has now been resolved.

If the log module was configured to store a very large number of messages

(for example, more than 3000 messages), a watchdog timeout could occur

when the show debug command was executed. This issue has been

resolved.

When doing Layer 3 IP multicast routing, the router would flood traffic to

all ports in the downstream VLAN. This issue has been resolved, and now

the router will do the portmap calculation based on IGMP, PIM-SM, PIM-

DM, DVMRP neighbour information, and forward the multicast traffic to

the calculated portmap.

A toplogy change in a network could cause a router to attempt to activate

an ISDN call configured with direction=in when the call was already

activated. In this situation, the call was failing, and the PPP link over the call

would not come open. This issue has now been resolved.

If a timed-out ARP entry was renewed by BOOTP, the new entry be created

with no port association. This issue has been resolved.

The add firewall apprule command did not correctly accept the port

parameter, so the port value was set to zero. This issue has been resolved,

and the port value is stored correctly.

There was an issue in DNS Relay that resulted in a memory leak. The leak

occurred when a response to a relayed DNS request contained an

authoritative nameserver or additional information and the DNS request

was forwarded to one of those servers. There was also an issue whereby

DNS queries handled by DNS Relay would sometime result is corrupt

entries in the DNS cache. These issues have been resolved.

PCR: 40537 Module: BGP Level: 2

PCR: 40549 Module: SWI Level: 2

PCR: 40560 Module: DHCP Level: 2

PCR: 40573 Module: LOG Level: 2

PCR: 40587 Module: IPG, PIM, DVMRP Level: 2

PCR: 40588 Module: PPP, CC Level: 2

PCR: 40592 Module: BOOTP Level: 2

PCR: 40599 Module: FIREWALL Level: 2

PCR: 40612 Module: IPG, DNS Relay Level: 2

6 Features in 54266-02 Patch Release Note

Patch 54266-02

C613-10417-00 Rev B

In previous releases, ping poll commands only required entry of the first

three characters of the Source IP Address (sipaddress) parameter. For

example, add ping poll=1 ip=192.168.2.10 sip=192.168.2.1. Subsequent

releases required entry of the first four parameters. This issue has been

resolved, so that it is once again possible to enter just the first three

characters.

For both RIP and OSPF, the router was adding a route with it own IP

address for NEXTHOP address. This issue has been resolved.

L2TP did not handle a change to its peer's UDP source port. If the tunnel

went through a NAT box and that NAT box was reset, then it was possible

for the remote port to change. L2TP should be able to handle this case and

update the tunnel accordingly. A similar problem occurs when a IPsec

NAT-T session (in transport mode) is re-negotiated. IPsec NAT-T uses port

translation to distinguish between multiple clients behind a NAT box. If the

IPsec session is renegotiated then the translated source port that IPsec

passes to L2TP will change. L2TP must be able to handle this case, if it

doesn't then the session will be lost. This issue has been resolved.

The router would not respond to the setting of the maxqueueseverity

parameter when configuring logging. This issue has been resolved.

When IP NAT was configured, a router reboot could occur if a TCP RST

packet was received in which the ACK flag and at least one other flag had

been set. This issue has been resolved.

Level 3

While the router was set with a CIDR interface address, when it received an

ECHO request with a network broadcast destination address for a class C

network, the router sent the ECHO reply packet. Also, the router forwarded

the ECHO request packet using a broadcast MAC address. These issues

have been resolved.

PCR: 40621 Module: PING Level: 2

PCR: 40646 Module: OSPF, IPG Level: 2

PCR: 40658 Module: L2TP Level: 2

PCR: 40668 Module: FFILE Level: 2

PCR: 40728 Module: IPNAT Level: 2

PCR: 31225 Module: IPG Level: 3

Patch 54266-02 7

Patch 54266-02

C613-10417-00 Rev B

When LS Acks (Link State Advert acks) were received, they were compared

against the transmitted LSA (Link State Advert). If it was the same, the LSA

was removed from the re-transmission list. The algorithm used in this check

has been changed to be compliant with the algorithm specified in section

13.1 of RFC2328, to determine if the LS Ack received is the instance as the

LSA.

If the value specified for the sport or dport parameter in the add ip filter or

set ip filter commands was 65535, then the IP filter process would

incorrectly interpret that value as meaning “any “ port. This issue has been

resolved so that port 65535 is now used for the IP filter when specified.

The tick timer was not initialised correctly, which could cause

firewall sessions to time out prematurely when the system time

reached midnight. This issue has been resolved.

In certain scenarios when acting as a DHCP server, the switch would send

a DHCP ACK to an invalid MAC address. This issue has been resolved.

When a virtual link end point is no longer reachable, the virtual interface is

not brought down, and the virtual neighbour is not removed. This issue has

been resolved.

The RP Candidate address was not displayed correctly when issuing the

"show pim6 rps" command. This issue has been resolved.

When the set bridge port command was executed, the bridge configuration

resulting from the create config or show config dynamic=bridge

commands would be incorrect. This issue has been resolved.

The ADSL interface, adsl0, did not appear in the Interface Name Summary

table section of the show interface command output or in the

arInterfaceTable in the Allied Telesyn enterprise MIB. This issue has been

resolved.

PCR: 40417 Module: OSPF Level: 3

PCR: 40428 Module: IP, FILTER Level: 3

PCR: 40437 Module: CORE Level: 3

PCR: 40493 Module: DHCP Level: 3

PCR: 40498 Module: OSPF Level: 3

PCR: 40513 Module: PIM6 Level: 3

PCR: 40610 Module: BRIDGE Level: 3

PCR: 40676 Module: ADSL, CORE Level: 3

8 AR441S ADSL Router Hardware Platform Patch Release Note

Patch 54266-02

C613-10417-00 Rev B

Level 4

If VRRP was enabled and a reset ip command was issued followed by a

disable vrrp command, then the device would still reply to pings, even

though the device was no longer the VRRP master. Duplicate echo replies

were seen on the device sending the pings. This issue has been resolved.

Enhancements

The new command show tacplus has been added. This command shows the

module status, number of servers, and number of logged in users.

The new ADSL Annex B firmware has been incorporated to allow

compliance with UR-2 specifications.

AR441S ADSL Router Hardware Platform

Patch 54266-01 includes support for the AR441S ADSL (Annex B) router.

Each AR441S router consists of a base CPU card, enclosure, and power supply.

The base CPU card supports:

■One Asymmetric Digital Subscriber Line (ADSL) Annex B port.

■Five 10/100 LAN switch ports.

■One asynchronous RS-232 (ASYN0) port.

The PIC bay can accommodate any of the following PICs:

• AT-AR020 PRI E1/T1 PIC, one Primary Rate E1/T1 port.

• AT-AR021(S) BRI-S/T PIC, one Basic Rate ISDN S/T port.

• AT-AR021(U) BRI-U PIC, one Basic Rate ISDN U port.

• AT-AR022 ETH PIC, one Ethernet LAN AUI/10BASE-T port.

• AT-AR023 SYN PIC, one Synchronous port with universal 50-way

AMPLIMITE connector.

• AT-AR024 ASYN4 PIC, four Asynchronous ports with RJ-45

connectors.

• AT-AR026 4ETH PIC, four 10BASE-T/100 BASE-TX auto-negotiating

ports with RJ-45 connectors.

• AT-AR027 VoIP-FXS PIC, two Foreign Exchange Subscriber (FXS) ports

with RJ-11 connectors.

PCR: 40441 Module: IPG, VRRP Level: 4

PCR: 40521 Module: TACACS+

PCR: 40677 Module: ADSL

Patch 54266-02 9

Patch 54266-02

C613-10417-00 Rev B

Main system

Main features of the AR440S routers are:

■300 MHz RISC processor.

■64 MBytes of SDRAM.

■16 MBytes of flash memory (1 MByte reserved for boot block code).

■5 x 10/100 Mbps full duplex, Layer 2 switched Ethernet LAN ports. All

LAN ports have Auto-MDI, however if Auto-MDI is turned off, then all

ports are hardwired as MDI-X. Software can also force a port to either MDI

or MDI-X. 802.1Q tagged VLANs are supported.

■1 x ADSL Annex B port

■1 x asynchronous DTE port.

■Universal AC power supply.

■On-board hardware encryption processor for DES, 3DES and AES.

Some encryption options may require feature licenses.

The RS-232 asynchronous serial port (ASYN 0) has a DB9 male connector, is

wired as a DTE port and can be used as a general purpose port for terminals,

printers or modems. The default communications settings are:

• 9600 bps

• 8 data bits

•1stopbit

•noparity

• hardware flow control

ADSL Interfaces

The ADSL port has an RJ11 connector, and supports Dying Gasp.

Power supply

The routers have a universal AC input connector and a power switch on their

rear panel. The routers require a power input of 100-240 VAC and 50–60Hz.

Some interfaces that may be installed in the router are not transformer isolated.

This means they will be referenced to the frame ground of the equipment and

may be damaged if connected to an interface on another piece of equipment

which is at a different ground potential.

For more information about the hardware, see the AR400 Series Hardware

Reference on the Documentation and Tools CD-ROM.

Features in 54266-01

Patch file details are listed in Table 2.

10 Features in 54266-01 Patch Release Note

Patch 54266-02

C613-10417-00 Rev B

Patch 54266-01 includes the following enhancements and resolved issues:

This patch, together with the base software release, supports the AR441S

ADSL (Annex B) router. With this patch, the AR440S ADSL port operates in

Annex A mode for ADSL over POTS, and the AR441S ADSL port operates

in Annex B mode for ADSL over ISDN. (“AR441S ADSL Router Hardware

Platform” on page 8)

If the Jabber counter in the output of the show switch port counter

command had more than four digits, it displayed an incorrect value. This

issue has been resolved.

An AR023 synchronous port interface card (PIC) installed in an AR440S

failed the Test facility interface test, even when there was nothing wrong

with the PIC. This issue has been resolved.

When the firewall was creating new NAT entries under extremely heavy

loads, it occasionally caused a fatal error. This issue has been resolved.

The router could not bridge between an ATM channel and a VLAN

interface. This issue has been resolved.

Occasionally a reboot occurred when the router attempted to bridge traffic

to an ATM channel before the channel had come up for the first time. This

issue has been resolved.

Attaching an IP interface to a VCMux encapsulated ATM interface with

Inverse ARP disabled by using the command:

add ip interface=atm0.1 ipaddress=192.168.1.1

inversearp=off

failed, giving one of the messages:

Error (3005271): Internal Error: Failed to start interface

Table 2: Patch file details for Patch 54266-01.

Base Software Release File 54-266.rez

GUI Resource File Names d440Se14.rsc (AR440S)

d441Se14.rsc (AR441S)

Patch Release Date 21-Oct-2004

Compressed Patch File Name 54266-01.paz

Compressed Patch File Size 161304 bytes

PCR: 40563 Module: ADSL

PCR: 40568 Module: SWK Level: 3

PCR: 40572 Module: M8272 Level: 3

PCR: 40576 Module: Firewall Level: 2

PCR: 40581 Module: BRG Level: 2

PCR: 40582 Module: BRG Level: 2

PCR: 40585 Module: IPG Level: 2

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