ZyXEL Communications ZYWALL 35 - V4.04 Betriebsanweisung PDF herunterladen (Seite 13)

(2) Make connection from another PC to ZyWALL via SSH, but second

connection could not be established.

9. [BUG FIX] SPR ID: 090105014

Symptom:

Firewall blocks GRE packets between two Cisco routers.

Topology:

/----DMZ(public IP)------Cisco router2(LAN:8.1.1.2)

(lan:8.1.1.1)Cisco router1------(wan)ZW5--

\----LAN

Condition:

(1) In firewall, traffic between WAN & DMZ is allowed. And log is enabled for

WAN ---- >DMZ.

(2) Configure NAT only for lan to wan, no nat between dmz and wan.

(3) Ping from 8.1.1.1 to 8.1.1.2 to start the tunnel, tunnel could not be built up

and ping failed, no log is shown

(4)If tunnel has been built up already, ping from 8.1.1.1 to 8.1.1.2 failed, no log

is shown

(5) If firewall is disabled, problem disappeared

10. [BUG FIX] SPR ID: 090121708

Symptom:

Fail to build VPN tunnel after SA lifetime expires.

Topology:

PC-------------(L)NAT router(W)-----(L)DUT(W)---Internet

(ZyXEL VPN Client)

Condition:

(1)Get ZyXEL VPN client from ftp://ftp.

zyxel.com/ZyWALL_IPSec_VPN_Client/software/ZyWALL IPSec VPN Client

_2.0.204.61.07. zip

(2) ZyXEL VPN client build VPN tunnel with DUT using NAT traversal.

(3) After phrase1 SA lifetime expires, can not build tunnel between them

successfully.

12. [BUG FIX] SPR ID: 090305574

Symptom:

PC1 gets request timeout when doing nslookup using ZyWALL A as the DNS

proxy.

Topology:

PC1----(L)ZyWALL-------A(W)tunnel------(W)ZyWALL B(L)---DNS Server

Condition:

(1) Build VPN tunnel between ZyWALL A and ZyWALL B.

(2) Configure ZyWALL A as DNS Server of PC1.

(3) On ZyWALL A, edit web eWC/DNS, add a new NS record before the first

record. (Domain Zone = *, Private DNS Server = IP of "DNS Server").

(4) On "DNS Server", add an Address Record.

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