3Com Router 3012 Manual de instrucciones

Router 3000/5000

Series

Release Notes for V1.10

http://www.3com.com/

Part No. 10014223

Published October 2003

Contents

Chapter 1 Introduction.............................................................................................................................3

1.1. Scope...................................................................................................................................................................3

1.2. Cable Connections...............................................................................................................................................3

1.3. Online Resources.................................................................................................................................................3

Chapter 2 Release Notes for the Router 3000 and Router 5000 Series V1.10 .......................................4

2.1. System Access.....................................................................................................................................................4

2.2. System Management ...........................................................................................................................................4

2.3. Interface Management .........................................................................................................................................5

2.4. Link Layer Protocol...............................................................................................................................................5

2.5. Network Protocol..................................................................................................................................................5

2.6. Routing Protocol...................................................................................................................................................6

2.7. Multicast Protocol.................................................................................................................................................6

2.8. Security ................................................................................................................................................................7

2.9. VPN......................................................................................................................................................................7

2.10. QoS....................................................................................................................................................................7

2.11. Dial-Up ...............................................................................................................................................................7

Chapter 1 Introduction

1.1. Scope

These release notes summarize operational requirements and issues for the following

Router 3000 and Router 5000 modules and software release V1.10. Read these release

notes before installing your router.

Table 1 Router Model Numbers

Description 3C Number

3Com Router 3012 3C13612

3Com Router 3013 3C13613

3Com Router 3016 3C13616

3Com Router 5009 3C13700

3Com Router 5231 3C13750

3Com Router 5640 3C13754

3Com Router 5680 3C13758

1.2. Cable Connections

3Com recommends that you power off the router before connecting any cable.

Do not connect and disconnect synchronous or asynchronous serial WAN cables, console

cables, Ethernet cables, ISDN BRI cables, and 4-port serial WAN adapters while power to the

router is on. Connnecting cables while power to the router is on can crash the router or

damage the serial port.

1.3. Online Resources

3Com routers contain a software agent that can be upgraded using the command line

interface. The software agent that is initially provided with the routers does not fully support

GRE, L2TP, IPSec, or SNMPv3.

To download a software agent that adds full support for these features, visit the 3Com support

website at http://support.3com.com to register your product. Note that this download agent

contains encryption capabilities that are restricted to certain users and countries so approval for

these downloads can take up to 48 hours.

To upgrade to future software agents that contain additional features, you must purchase a

service contract. Details are provided on the Service and Warranty pages of the 3Com support

website http://support.3com.com .

See the Router 3000 Installation Guide or Router 5000 Installation Guide for software

download instructions.

Download the Router 3000 Installation Guide from:

http://support.3com.com/infodeli/tools/routers/R3000Install.pdf

Download the Router 5000 Installation Guide from:

http://support.3com.com/infodeli/tools/routers/5000Install.pdf

Download the 3Com Router Command Reference Guide from:

http://support.3com.com/infodeli/tools/routers/3ComRouterComRef.pdf

Download other current software updates and release notes from:

http://www.3com.com/

Chapter 2 Release Notes for

the Router 3000 and Router

5000 Series V1.10

This chapter offers updates on Router 3000 and Router 5000 features in the following areas:

System Access Routing Protocol Dial-Up

System Management Multicast Protocol

Interface Management Security

Link Layer Protocol VPN

Network Protocol QoS

2.1. System Access

Symptom Solution

A user, logging in as an operator, can see

administrator passwords. Use encrypted passwords instead of simple

passwords.

2.2. System Management

Symptom Solution

If you add or remove a module, the

configuration may be altered. Save the configuration file and edit it with the

new interface numbers so that the file

corresponds with the new physical

configuration.

The router reboots if an invalid agent software

file is used to upgrade the device. Insure that the correct agent file has been used

before writing to flash memory.

Use Xmodem or TFTP to upgrade and recover

the device.

RMON MIB tables can be created on an

Ethernet interface on which RMON is disabled,

but no data is collected.

Enable RMON on interfaces being used for

monitoring.

RMON history bucket allocation fails if more

than 50 buckets are requested. Insure no more than 50 buckets are requested

when creating an RMON history table.

RMON Matrix DS table has src and dst

addresses reversed. Use the SD table instead.

Routers are not recognized by Network

Management applications, such as 3Com

Network Supervisor, unless SNMP V1 is

enabled.

Enable SNMP V1 on the device, as described

in the Installation Guide, and then discover the

network using Network Supervisor.

RELEASE NOTES FOR THE ROUTER 3000 AND ROUTER 5000 SERIES

V1.10

2.3. Interface Management

Symptom Solution

Interface changes may require a reset of the

interface for changes to take effect. If you make a configuration change to an

interface, reset the interface.

The error message for deleting a PRI is

incorrect. Use the undo pri-set command instead.

Dialer interfaces do not support IP

Unnumbered. Assign an IP address to dialer interfaces.

When initially configuring a virtual template, a

reboot of the router may be necessary. Save the configuration and reboot the router.

2.4. Link Layer Protocol

Symptom Solution

LMI Encapsulation type has been renamed. If the frame relay peer is set to LMI, set the

Local Interface to Non-Standard.

Router 3000 series routers do not auto-

negotiate with the 3Com SSII Dual Speed Hub

500.

Adjust the speed and duplex manually on both

devices so they match. Disable auto mode.

Routers only support switch type dss1 BRI S/T

(European ISDN). Routers only support switch type dss1 in this

release.

2.5. Network Protocol

Symptom Solution

IGMP query timer defaults to 60. Set the query timer, manually, to 125.

Naming inconsistency with interface and IPX

static routes. When configuring a static route for a network

that begins with an alpha character, preface

the network with 0x.

IPX RIP entries are not aged-out at the user-

defined interval. The IPX RIP table entries are removed from

the table if updates for those entries are not

received within the default interval of 180

seconds. This value is based upon a default

RIP update timer of 60 seconds and a default

multiplier of 3.

IPX SAP services’ timer and multiplier value

configurations are ignored. IPX SAP updates are received once a minute

regardless of configuration settings.

MTU size cannot be dynamically changed from

the default of 1500. If making a change to the MTU size, reboot the

router afterwards.

When you configure NAT outbound on an

interface, that interface is not immune to the

NAT translation.

Deny the NAT outbound interface address with

an Access List.

RTP header compression is not fully supported

in this release. RTP header compression is not fully supported

in this release.

Load balancing does not work through

recursive lookup. Use MLPPP or OSPF to support load

balancing.

IPX WAN encapsulation is configurable over

HDLC. IPX WAN encapsulation is configurable over

HDLC.

RELEASE NOTES FOR THE ROUTER 3000 AND ROUTER 5000 SERIES

V1.10

2.6. Routing Protocol

Symptom Solution

Any route policy that uses ACLs defaults to

permit all. Add an explicit deny all or permit all rule at

the end of all ACL statements.

The OSPF command, abr-summary not

advertise is not working correctly.

The abr-summary not advertise command

does not filter the initial route in a summary

update. For example, 128.213.64.0/19 filters

the routes 128.213.65.0 to 128.213.95.0 but

does not filter 128.213.64.0.

If necessary, configure an ACL to filter the

route.

Changing the OSPF Area on an interface will

delete the OSPF configuration on that

interface.

Save the OSPF configuration file before the

change.

Changes to an access list are not applied until

the route policy is reapplied. Reapply the route policy immediately after

making changes to the access list.

The display bgp route command only shows

one route even if multiple (backup) routes are

available.

The display only shows detail information for

the best route.

RIP MD5 Authentication types are ambiguous. For RIP MD5 Authentication, use the default

non-standard value. This is the most common.

Routing does not function correctly, in a virtual

template with multilink PPP and OSPF

configuration.

When using MP with OSPF, you must

configure OSPF peer ipaddress.

When using a serial DTE interface, the OSPF

cost may not be set correctly. Set the OSPF cost for the DTE manually.

BGP places all internal peers into one peer

group by default, To configure different policies for one peer,

place that peer in a separate peer group and

define policies for that peer group.

The router supports only 15,000 entries.

Receiving over 15,000 BGP routes may cause

the router to hang.

Arrange with the local ISP to filter routes before

updates can reach the router.

With Routing Policies, matching next-hop

based on IP prefix list does not actually match

the next BGP hop.

Use ACL instead of prefix-list.

Toggling route-reflection with a connection

established causes the router to reboot. Shut down the interface before toggling route-

reflection.

A route policy specified in a peer group does

not take effect after a reboot, Reenter the route-policy after the router has

returned to service.

Poison Reverse is not supported in this

release. Poison Reverse is not supported in this

release.

2.7. Multicast Protocol

Symptom Solution

The router does not support IP multicast

forwarding without the multicast routing

protocol.

Keep PIM-SM or PIM-DM enabled on the

interface to insure multicast runs correctly.

Enabling ip unnumbered on a PIM-SM

interface disables PIM-SM routing. Do not configure ip unnumbered on a PIM-SM

interface.

RELEASE NOTES FOR THE ROUTER 3000 AND ROUTER 5000 SERIES

V1.10

2.8. Security

Symptom Solution

ACL match counts are not logged. ACL match counting is only supported with the

firewall feature.

If you are using automatic matching order with

ACLs, a rule that is similar to an existing rule,

even if they have different qualifiers, is not

added as a separate rule.

Remove the existing rule before applying the

new rule.

IPSec in transport mode will transmit transit

traffic with no security headers. IPSec in

transport mode is designed for direct

communications between two peers running

IPSec.

Use Tunnel mode if you are configuring the

router to be an IPSec gateway.

IPSec nesting is not supported in this release. IPSec nesting is not supported in this release.

The Encryption card status message,

Byte

Order: Not consistent with host

can be misleading.

Disregard this status message.

Only one security association is used for each

ACL-incompatible with per-rule implementation.

Create one separate ACL for each permit

statement in the third-party access list.

2.9. VPN

Symptom Solution

The basic version of this release does not

support GRE or L2TP. Use the extended version of this release for

GRE and L2TP tunneling support.

2.10. QoS

Symptom Solution

NBX Layer 2 traffic cannot be classified for

QoS. Use Layer 3 prioritization.

2.11. Dial-Up

Symptom Solution

The ppp chap user command is not supported

in dialer interfaces. When using Resource DCC and using chap

authentication, ppp chap user should be

configured only on the router that is dialing out.

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