ZyXEL Communications ADSL 2+ Security Gateway Bedienungsanleitung

ZyXEL

Firmware Release Note

ZyWALL 2 Plus

Release 4.01(XU.0)

Date: October 16, 2006

Author: Keenboy Xu

Project Leader: Lorin Yeh

ZyXEL ZyWALL 2 Plus Standard Version

Release 4.01(XU.0)

Release Note

Date: October 16, 2006

Supported Platforms:

ZyXEL ZyWALL 2 Plus

Versions:

ZyNOS F/W Version: V4.01(XU.0) | 10/16/2006 19:03:59

BootBase: V1.11 | 07/12/2006 14:20:29

Notes:

1. Restore to Factory Defaults Setting Requirement: No

2. The setting of ignore triangle route is on in default ROMFILE. Triangle route

network topology has potential security crisis. If you are not clear about it, please

refer to Appendix for the triangle route issue.

3. IKE process in phase 2 will check ID information between system and the peer. If

you found that the IPSEC connection is failed, please check your settings.

4. Using Web to configure VPN, the phase 1 algorithms have been fixed to DES +

MD5. If other algorithms are preferred, please use ADVANCE page to configure

them.

5. When firewall turns from "off" to "on", the firewall initialization procedure will

disconnect all connections running through the ZyWALL.

6. SUA/NAT address loopback feature was enabled on ZyWALL by default;

however, if users do not need it, a C/I command "ip nat loopback off" could turn

it off.

7. When UPnP is on, and then reboot the router, Windows XP will not detect UPnP

and refresh “My Network PlacesÆLocal Network”. Plug in network wire again

can solve this problem.

8. In bridge mode, If LAN side DHCP clients want to get DHCP address from WAN

side DHCP server, you may need to turn on the firewall rule for BOOT_CLIENT

service type in WANÆLAN direction.

9. The first entry for static route is reserved for creating WAN default routes and is

READ-ONLY.

10. If you want traffic redirect feature to work, you should turn on WAN ping check

by "sys rn pingcheck 1".

11. The first entry for static route is reserved for creating WAN default route and is

READ-ONLY.

12. If you had activated content filtering service but the registration service state is

"Inactive"after upgrading to 4.00, please click "Service License Refresh" in

"eWC->REGISTRATION->Registration" or wait until device synchronize with

the myzyxel.com.

13. Support Vantage CNM -- revision 2.2.00.61.03

Known Issues:

[UPnP]

1. Sometimes on screen the “Local Area Connection” icon for UPnP disappears. The

icon shows again when restarting PC.

2. When you use MSN messenger, sometimes you fail to open special applications,

such as whiteboard, file transfer and video etc. You have to wait more than 3

minutes and retry these applications.

[Bandwidth Management]

1. Bandwidth management H.323 service does not support Netmeeting H.323

application.

2. Using BWM in PPPoE/PPTP mode, there are two filters for FTP and H323 ALG

(1) If we execute FTP first then H323 cannot pass through ZyWALL.

(2) If we execute H323 before FTP, all functions work properly.

3. In some cases, BWM (Fairness-Based mode) cannot manage bandwidth accurately.

Ex. In WAN interface, there are two subclasses for FTP service, their speed are

100Kbps and 500Kbps, the traffic match the filter which speed is 500Kbps may

only use half of it’s bandwidth.

[Content Filter]

1. Can’t blockActiveX in some case. (Sometime the ActiveX block fails. This is

because the ActiveX is cached in C:\WINNT\Downloaded Program Files\ If you

want to test the ActiveX block functionality. Please clear the cache in windows.)

[Bridge Mode]

1. When device boots in Bridge Mode, some CI command error messages will be

displayed on console. This is because some predefined CI commands in

autoexec.net is forbidden to execute in Bridge Mode.

2. Don’t use CI command “bridge rstp bridge enable” to enable RSTP, it will change

the initial Path Cost value to an incorrect value.

[ALG]

1. Symptom: P2002 can not connect with each other in Peer-to-Peer mode.

Condition:

Topology: P2002--(LAN)ZyWALL_A(WAN, IP=172.21.2.151)--(WAN,

IP=172.21.1.134)ZyWALL_B(LAN)--P2002

(1) In ZyWALL_A and ZyWALL_B, add a "WAN to LAN" firewall rule to pass

traffic with port "5060".

(2) In ZyWALL_A and ZyWALL_B, add a port forwarding rule "5060" to P2002.

(3) In ZyWALL_A and ZyWALL_B, enable SIPALG.

(4) Setup both P2002 to Peer-to-Peer mode.

(5) Making the SIP connection by P2002 will be failed.

(6) Turn off firewall in ZyWALL_A and ZyWALL_B, sometimes the connnection

can be built up if we dial from P2002 which is behind ZyWALL_A.

[MISC]

1. At SMT24.1, the collisions for WAN and LAN port are not really counted.

2. Under PPTP encapsulation mode, we can not access some website like

http://www.kimo.com.tw/

3. In eWC->Statistics, Tx data for Dial Backup is not correct.

4. Symptom: PC can't ping remote gateway through VPN tunnel under this special

topology.

Condition:

PC------LAN ZyWALL_A WAN-----------------LAN ZyWALL_B

WAN-------Internet

(192.168.1.33）（192.168.100.33）(192.168.100.1) （172.202.77.145)

(1) VPN configuration in ZyWALL_A:

WAN IPAddress=192.168.100.33，WAN IP Subnet Mask=255.255.255.0，

Gateway IPAddress=192.168.100.1.

Gateway policy，Name=IKE1，Remote Gateway Address=192.168.100.1，

Pre-Shared Key=12345678.

Network policy for IKE1，Active=enable，Name=IPSec1，Local Network/Starting

IPAddress=192.168.1.33，Remote Network/Starting IPAddress=0.0.0.0

(2) VPN configuration in ZyWALL_B

WAN IPAddress=172.202.77.145，WAN IP Subnet Mask=255.255.0.0，Gateway

IPAddress=172.202.77.1.

Gateway policy，Name=IKE1，Remote Gateway Address=192.168.100.33，

Pre-Shared Key=12345678.

Network policy for IKE1，Active=enable，Name=IPSec1，Local Network/Starting

IPAddress=0.0.0.0，Remote Network/Starting IPAddress=192.168.1.33.

(3) When we established the VPN tunnel between ZyWALL_A and ZyWALL_B,

we can access ZyWALL_B (192.168.100.1) with the remote management,

such as Telnet, FTP…, this traffic will go through VPN tunnel. However, we can

not ping ZyWALL_B (192.168.100.1) successfully because this ICMP traffic

did not go through VPN tunnel to ZyWALL_B.

[CNM]

1. DES/3DES encryption key doesn’t unique.

2. The 2 check boxes “Log” and “Block” of Matched Web Pages can’t be disabled

on Content Filter/ Categories page when Schedule to Block has set time interval

on Content Filter/General page.

3. Vantage GUI misses to show the NetBIOS port, 445 in Firewall “W2L_Rule_2”

default rule.

4. [Symptom] Device will crash, when Vantage set Dial Back Fixed IP in the same

subnet with WAN to device.

[Condition]

(1). Let device register to Vantage.

(2). Vantage set Dial Backup to enable.

(3). Vantage set Dial Backup Fixed IP in the same subnet as WAN to device.

(4). Device will crash after writing above settings.

5. Change NAT mode from “SUA” to “Full Feature”, device will create 2 address

mapping rules automatically but Vantage Server will not.

6. Vantage and Agent are not consistent at VPN/IPSec/Protocol field. Vantage is a

dropdown list with “Any”, “ICMP”, “TCP”, “UDP” selections and Agent is a

0~999 value range.

7. Vantage and Agent are not consistent at Firewall rule’s log. Vantage has 4

selections “None”, “Match”, “Not-Match”, “Both”. Agent has only a check box.

8. Firewall Default Action can’t select “Permit”, “Drop” and “Reject” via Vantage.

9. Firewall name can’t display on Firewall page on Vantage GUI.

10. Some pre-define custom service can’t add to firewall rule when configure from

Vantage. For example: AX.25, IPv6, VNC, NTP and so on.

11. The “Mail Sender” field on device/Log settings page hasn’t implement on Vantage

side.

12. [Symptom] Mbuf double free when add firewall rules by using CI commands.

[Condition]

(1). On SMT 24.8, configure firewall rules by using CI commands.

(2). Add DMZ to LAN rule and DUT crashed.

(3). It couldn't be reproduced.

13. [Symptom] Test Bandwidth Manager a period of time, PPTP will be dropped and

reconnected.

[Condition]

PC--- (Lan) DUT (PPTP) ---- PQAlab (192.168.10.X)

(1). Set Encapsulation = PPTP.

(2). Edit web eWC/Firewall/Rule Summary，Packet Direction=WAN to LAN，edit

rule 1，Selected Service(s) = *H.323 (TCP：1720)

(3). Edit web eWC/NAT/Port Forwarding，WAN Interface=WAN1，

index1/Active=enable，Name=H323，Incoming Port(s)=1720-1720，Server IP

Address=192.168.1.33

(4). Edit web eWC/BW MGMT，WAN1/Active=enable，WAN1/Speed

(kbps)=1000，Scheduler=Fairness-Based

(5). Edit web eWC/BW MGMT/Class Setup，Interface=WAN，Add Sub-Class，

Class Name=Custom，Bandwidth Budget=200，Priority=2，Enable Bandwidth

Filter= enable，Service= Custom.

(6). Edit web eWC/BW MGMT/Class Setup，Interface=WAN，Add Sub-Class，

Class Name=FTP，Bandwidth Budget=200，Priority=3，Enable Bandwidth Filter=

enable.

(7). Edit web eWC/BW MGMT/Class Setup，Interface=WAN，Add Sub-Class，

Class Name=H323，Bandwidth Budget=200，Priority=5，Enable Bandwidth

Filter=enable，Service=H.323

(8). Edit web eWC/BW MGMT/Class Setup，Interface=WAN，Add Sub-Class，

Class Name=SIP，Bandwidth Budget=200，Priority=7，Enable Bandwidth

Filter=enable，Service=SIP

(9). Edit web eWC/BW MGMT/Class Setup，Interface=WAN1，move filter 4 to

filter 1.

(10). Edit web eWC/BW MGMT/Class Setup，Interface=WAN1，move filter 4 to

filter 2.

(11). Edit web eWC/BW MGMT/Class Setup，Interface=WAN1，move filter 4 to

filter 3.

(12). FTP upload file from 192.168.1.33 to PQA lab.

(13). Use “TfGen” application to send UDP packet/ 500kbps from 192.168.1.33 to

PQA Lab.

(14). Call Netmeeting (OpenH323) from 192.168.1.34 to 192.168.10.101 and send

voice packet.

(15). Make a SIP phone call from 192.168.1.33 to 192.168.10.100 and send voice

packet.

(16).After a period of time, PPTP will be dropped and reconnected.

14. [Symptom] Block ActiveX & Java Applet via IPSec tunnel fails.

[Condition]

HQ and branch office application scenario

PC1------------Branch_1(ZW2+)-----------HQ(ZW2+)----------Branch_2(ZW35)----

(192.168.2.0) (192.168.1.0)

----------PC2

(192.168.4.0)

DUT1 (HQ)

(1). Register CF service; Enable Content Filter and Content Filter for traffic that

matches IPSec Policy.

(2). CF service blocks "ActiveX, Java Applet, Cookies and Web Proxy".

(3). Edit Denied Access Message & Redirect URL.

(4). Edit web eWC/VPN，add gateway policy，Name=IKE1，Remote Gateway

Address=0.0.0.0，Pre-Shared Key=12345678

(5). Edit web eWC/VPN，add network policy for IKE1，Active=enable，

Name=IPSec1，Local Address Type=Single，Local Network/Starting IP

Address=0.0.0.0，Remote Address Type=Single，Remote Network/Starting IP

Address=0.0.0.0

DUT2 (Branch_1，LAN=192.168.2.0)

(1). Edit web eWC/VPN，add gateway policy，Name=IKE1，Remote Gateway

Address=DUT1 WAN IP address，Pre-Shared Key=12345678

(2). Edit web eWC/VPN，add network policy for IKE1，Active=enable，

Name=IPSec1，Local Address Type=Subnet，Local Network/Starting IP

Address=192.168.2.0，Local Network/End IP Address=255.255.255.0，Remote

Address Type=Single，Remote Network/Starting IP Address=0.0.0.0

Result:

(1). PC1 can't http http://dob.tnc.edu.tw/themes/old/showPage.php?s=152&t=5

with Java Applet example and there is blocked log on DUT1. But there is no

"Denied Access Message" and can't redirect to configured URL.

(2). Setup same configuration on Branch_2 (ZW35). PC2 can't http

http://dob.tnc.edu.tw/themes/old/showPage.php?s=152&t=5 with Java Applet

example and there is blocked log on DUT1. There is "Denied Access Message"

and can redirect to configured URL.

Features:

Modifications in V 4.01(XU.0) | 10/16/2006

1. Formal Release.

Modifications in V 4.01(XU.0)b4 | 10/11/2006

1. [BUG FIX]

Symptom: There is not the help page for IPSec_PortForw_Server.html.

Condition:

1) SECURITY>>VPN, add Gateway Policy.

2) Add Network Policy.

3) Active check box “active” of Virtual Address Mapping Rule.

4) Select Type of Virtual Address Mapping Rule “Many-to-One”.

5) Click button “Port Forwarding Rules”, then click help page.

6) There is not the help page.

2. [BUG FIX]

Symptom: Some information on eWc/Home page is different from ZW5 4.01

Condition:

1) There is on MAC address on System Information. They are moved to

Interfaces and add DMZ/WLAN/WAN MAC address on eWC/Home.

2) Home/System Information/Firmware Version can’t link to maintenance/F/W

Upload Page.

3) Home/Security services/Content Filter Expiration can’t link to

Registration/Service page.

4) Home/Up Time clock is not real-time.

Modifications in V 4.01(XU.0)b3 | 09/23/2006

1. [BUG FIX]

Symptom: LAN DHCP pool size is 128

Condition:

LAN DHCP pool size is 128, it should be 32 according to PS.

2. [BUG FIX]

Symptom: Default romfile is incorrect for DMZ and WLAN in BW

MGMT>>Class Setup page.

Condition:

1) Click BW MGMT->Class Setup page.

2) Select DMZ or WLAN interface.

3) It displays the “Root Class: 0 kbps” in the middle of this page, it is incorrect

and should be “Root Class: 100000 kbps”.

3. [BUG FIX]

Symptom: There are two error title “ZyWALLZyWALLZyWALLLAN” on help

page.

Condition:

1) eWC->NETWORK->LAN->HELP page

2) Help page displays incorrect title “ZyWALLZyWALLZyWALLLAN” instead

of “LAN”.

4. [BUG FIX]

Symptom: Default setting is inconsistent with ZW5

Condition:

1) eWC/Firewall/Threshold/TCP Maximum Incomplete.

ZW2+: 10 ZW5: 30

2) eWC/NAT/Max.Concurrent Sessions Per Host:

ZW2+: 2048 ZW5: 3000.

3) ZW5 has not the following items on eWC/WAN/Dial Backup page

Remote IP Subnet Mask

Remote Node IPAddress

4) eWC/MAINTENANCE/Time and Date/Time Server Address

ZW2+: a.ntp.alphazed.net ZW5: 0.pool.ntp.org.

5) eWC/Firewall/Default Rule:

Default firewall rule LAN to DMZ should be no log.

Default firewall rule WAN to DMZ should be no log.

5. [ENHANCEMENT]

Symptom: Device can accept the blank password of login user.

Condition:

Device can accept the blank password of login user. For example: eWC/

MAINTENANCE/Password, input Old password and let New password and

Retype to Confirm items blank, new password can be applied and it is blank.

Modifications in V 4.01(XU.0)b2 | 09/13/2006

1. [BUG FIX] 060810724

Symptom: Default WLAN firewall rules directions are different from ZW5 V4.01.

Condition:

1) ZW5: LAN to WLAN is Permit with no log , but ZW2 Plus is Drop with log.

2) ZW5: WAN to WLAN is Drop with log, but ZW2 Plus is Permit with no log.

3) ZW5: DMZ to WAN with no log, but ZW2 with log.

4) Based on security, please follow ZW5 behavior.

2. [BUG FIX] 060810725

Symptom: NTP server on LAN sometime will fail without logs when WAN is

disconnected and click sync fail.

Condition:

1) Disconnect WAN interface.

2) To Configure a Time Server Address (ex: 192.168.11.4) which is on LAN port

(192.168.11.70) and click Synchronize Now. If it fails and there is no failed log on

Log page. If it succeed, and there is a log on Log page.

3) This is beta user reported issue and we can reproduce it.

3. [BUG FIX] 060810726

Symptom: Default SNMP Configuration can't be applied.

Condition:

1) Reset DUT.

2) On eWC/ADVANCED/REMOTE MGMT/SNMP, click Apply.

3) It failed and Status show "Invalid IP address".

4) Trap's Destination can't be configured to 0.0.0.0.

4. [BUG FIX] 060810712

Symptom: "System Resources" picture bar can not appeared on HOME page when

using Mozilla Firefox browser.

Condition:

"System Resources" picture bar can not appeared on HOME page when using

Mozilla Firefox browser.(my version v1.5.0.6).

5. [BUG FIX] 060810690

Symptom: CF Denied Access Message and Redirect URL have not limit special

character, it will cause DUT crash.

Condition:

1) eWC CF, Denied Access Message or Redirect URL input %s%s%s and apply,

DUT will be crash.

2) Attached file is crash dump.

3) It is a common bug.

4) It has another security issue, if input a script, like as <script>alert ('XSS

Vulnerability') </script>, when user browsing internet and CF blocked it. The

Denied Access Message will show block message, and then user browser will be

run that script show "XSS Vulnerability" message box. This is like as XSS

vulnerability issue.

Note: Step 4 is decided by administrator. Currently it is not controlled.

6. [BUG FIX] 060811833

Symptom: Message to display when a site is blocked failed but there are web sites

blocked log on log page.

Condition:

1) Register and enable content filter.

2) On Message to display when a site is blocked, edit Denied Access Message to

kkkkkkkkkk and Redirect URL to tw.yahoo.com.

3) On Categories, Select All Categories.

4) Open www.gamble.com on PC and the website can't be opened. There is no

blocked message appeared and don't redirect website to tw.yahoo.com.

5) There is a web site blocked log on log page showed

"www.gameble.com:Gambling 192.168.1.33:4368 198.173.81.173:80 WEB

BLOCK"

7. [BUG FIX] 060814876

Symptom: CERTIFICATES log url page can not found.

Condition:

1) CERTIFICATES error log like as "2006-08-14 15:59:43 Due to error code(10),

cert noRecv:[ID][CER][SIG][NOTFY:INIT_CONT567A6AFE CERT

MANAGER", the url at "code(10)".

2) Click this url will be redirect to http://DUT IP/h_Certificate_Code.html, but

this page can not found.

8. [BUG FIX] 060814878

Symptom: Bridge mode VPN "Adjust TCP Maximum Segment Size" can not

work.

Condition:

1) DUT1 in bridge mode, create a VPN1 rule.

2) VPN Global Setting Adjust TCP Maximum Segment Size=1000.

3) DUT2 in router mode, Create a VPN2 rule.

4) Ftp from DUT2 PC2 (ftp client) to DUT1 PC1 (ftp server).

5) Sniffer package, always show ftp data size is 536 bytes.

9. [BUG FIX] 060815943

Symptom: Bandwidth Management's Number of classes can not add to 10 rules.

Condition:

1) Bandwidth Management's Number of classes can not add to 10 rules, it just can

add 9 rules.

2) And then edit anyone rule click apply, GUI will be show message of "Number

of classes reaches the upper bound" and can not save rule.

10. [BUG FIX] 060817043

Symptom: The difference between ZW5/35/70 v4.01 and ZW2 Plus

Condition:

1) LAN/DMZ/WAN/Windows Networking(NetBIOS over TCP/IP)

2) LAN/DMZ/Static DHCP: MAC format is 00:00:00:00:00:01, ZW5:

000000000001

3) Firewall/Service/Custom Service, ZW2 Plus no default settings.

4) VPN/Global Setting, VPN rules skip applying to the overlap range of local and

remote IP addresses default is disable on ZW5.

5) BWM/Edit Class/ Filter Configuration/Custom/Destination Port &Source Port

can set Start port to End port on ZW5.

6) SMT WLAN Zone is different

11. [BUG FIX] 060817054

Symptom: ZW2 Plus V4.01(XU.0)b1 behind the zywall 35 (V4.01) ip alias, VPN

tunnel can not work.

Topology:

pc1---(L)zw2-1(W)---(L)zw35(L)---(W)zw2-2(L)---pc2

zw35 lan ip:

ip alias1:10.10.10.1

ip alias2:172.172.172.1

zw2-1 wan ip:10.10.10.200 (bridge mode)

pc1 ip:10.10.10.100

zw2-2 wan ip:172.172.172.200 (route mode)

pc2 ip:192.168.1.33

Condition:

1) Create a VPN rule on zw2-1 and zw2-2.

2) Pc1 ping pc2 and triggered this VPN rule.

3) VPN tunnel will be connected but pc1 ping or ftp to pc2 fail.

12. [ENHANCEMENT]

Add ci command for WAN port Ethernet speed. Steps are the following:

1) ether edit load

2) load <ether no(1:lan).>

3) ether edit load 2

4) ether edit speed (speed <auto|10/half|10/full|100/half|100/full>)

5) ether edit speed auto

6) ether edit save

13. [ENHANCEMENT]

Microsoft cryptographic library supports only odd-sized keys for generating the

RSA-modulus.

Let the key number of creator primes be odd-size.

14. [BUG FIX]

Symptom: Import certificate fail.

Condition:

1) Goto eWC>SECURITY>CERTIFICATES>My Certificates page, export the

ZyWALL's self-signed auto_generated_self_signed_cert certificate in PKCS#12

format.

2) Import the same certificate file to ZyWALL. The ZyWALL will show the

error message "The certificate name cannot be blank".

15. [ENHANCEMENT]

Add PKCS12 for ZyNOS.

16. [ENHANCEMENT]

Add second time schedule setting in content filtering.

17. [BUG FIX]

Symptom: Device crashes because of memory double free in Content Filter.

Condition:

1) Enable Content Filter and Web site customization.

2) After a while, the device will crash sometimes.

18. [ENHANCEMENT]

Enhance the CI command "ip ifconfig".

Andere Handbücher für ADSL 2+ Security Gateway

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