Zyxel P-2602H_P-2602HW [415/465] C p 2602h hw ee

Zyxel P-2602H_P-2602HW [415/465] C p 2602h hw ee
  c P-2602H/HW EE
 I   415
Packet without a NAT table entry
blocked: [ TCP | UDP | IGMP | ESP
| GRE | OSPF ]
  ,  
    NAT.
Router sent blocked web site
message: TCP
  , 
 ,  
  
 -.
. 155    TCP
 
Under SYN flood attack,
sent TCP RST
    TCP,  
  “SYN Flood” (  
 TCP    .)
Exceed TCP MAX
incomplete, sent TCP RST
    TCP,  
   TCP  
  (    TCP
   .) : . 
TCP Maximum Incomplete   Firewall Attack Alerts.
Peer TCP state out of
order, sent TCP RST
  
 TCP, 
   TCP-. :
   TCP-  
   . 6  RFC793.
Firewall session time
out, sent TCP RST
    TCP  
    . 
    
( ):  ICMP: 60,  UDP – 60,
 TCP- ( ) –
30,   TCP FIN – 60, 
() TCP-
 – 3600
Exceed MAX incomplete,
sent TCP RST
    TCP,  
   (TCP UDP)  
  (   
  TCP UDP   .)
:      
  (TCP + UDP) > “Maximum Incomplete
High”,    TCP RST  TCP-
  TOS (  
),    
   <
“Maximum Incomplete Low”.
Access block, sent TCP
RST
   TCP RST  
 ,      TCP-
   (  
: “sys firewall tcprst”).
. 154    ()
 

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