ZyXEL Communications ZYWALL 5 - V4.04 Guia do Utilizador descarregar pdf (Página 11)

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Condition:

Upload the 4.04 pre-version FW, for example,4.04 patch1 and reset to default romfile

Update the signature

Upload the 4.04 patch 2 FW

High and severe IDP signatures ARE NOT LOGGED BY DEFAULT, even update the

latest version signature

Modifications in V 4.04(XD.2)b1 | 08/20/2008

1. [ENHANCEMENT]

Enhance DNS proxy to support random transaction id and random source port.

2. [BUG FIX] SPR ID: 080523448

Symptom: Can't build VPN tunnel after SA lifetime expires.

Topology:

PC------------- (L) NAT (W) ----- (W) ZyWALL (L) ---Internet

(ZyXEL VPN Client)

Condition:

(1) ZyXEL VPN client build VPN tunnel with ZyWALL using NAT traversal.

(2) After phase1 SA lifetime expires, cannot build tunnel between them successfully.

3. [BUG FIX] SPR ID: 080523446

Symptom: Query a non-exist domain name always show timeout when DNS server

returns 'no such name'.

Topology:

PC with Linux--- (L) ZyWALL (W) ---DNS server

Condition:

(8) Go to eWC>ADVANCED>DNS>System, only configure ZyWALL with one

user-defined DNS server, confirm NO default server.

(9) Configure ZyWALL works as DNS proxy.

(10) Enter command in Linux shell: "date;host www.noexist2345.com;date"will

display like following after 10seconds later:

Fri Mar 21 17:30:40 CST 2008

;;connection timed out;no servers could be reached

Fri Mar 21 17:30:40 CST 2008

4. [BUG FIX] SPR ID: 080718239

Symptom: ZyWALL 5 crashes when customer tries to receive some specific mails.

Topology:

Mail client----- (LAN) ZW5 (WAN) ---external mail server

Condition:

(1) Go to eWC>Registration, active ZyWALL Anti Spam service.

(2) Go to eWC>Security>Anti-Spam >General, enable it. Check direction WAN-LAN.

Configure X-Header, Phishing Tag and Spam Tag

(3) Go to eWC>Security>Anti-Spam> External DB, enable it and set the threshold to

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