上次去了客户那里   一个ASA5505和华为的一台三层交换机，六台华为二层交换机

 

出现的故障是：网络不稳定  上一个小时或者半个小时自动断线

 

重启防火墙  问题解决  半个小时后问题任然存在（内网没问题，三层交换机能够正常提供DHCP）

 

 

 

防火墙具体配置如下：

ciscoasa# sh run               
: Saved      
:
ASA Version 7.2(4)                 
!
hostname ciscoasa                
enable password 8Ry2YjIyt7RRXU24 encrypted                                         
passwd 2KFQnbNIdI.2KYOU encrypted                                
names    
!
interface Vlan1              
 nameif inside             
 security-level 100                  
 ip address 192.168.10.254 255.255.255.0                                       
!
interface Vlan2              
 nameif outside              
 security-level 0                
 ip address 10.10.0.240 255.255.255.0                                    
!
interface Ethernet0/0                    
 switchport access vlan 2                        
!
interface Ethernet0/1                    
!
interface Ethernet0/2                    
!
interface Ethernet0/3                    
!
interface Ethernet0/4                    
!
interface Ethernet0/5                    
!
interface Ethernet0/6                    
!
interface Ethernet0/7                    
!
ftp mode passive               
pager lines 24             
logging asdm informational                         
mtu inside 1500              
mtu outside 1500               
icmp unreachable rate-limit 1 burst-size 1                                         
asdm image disk0:/asdm-524.bin                             
no asdm history enable                     
arp timeout 14400                
global (outside) 1 interface                           
nat (inside) 1 0.0.0.0 0.0.0.0                             
route inside 192.168.0.0 255.255.0.0 192.168.10.1 1                                                  
route outside 0.0.0.0 0.0.0.0 10.10.0.1 1                                        
timeout xlate 3:00:00                    
timeout conn 1:00:00 half-closed 0:10:00 udp                                          
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00                                                                             
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00                                                                              
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute                                                           
http server enable                 
http 192.168.1.0 255.255.255.0 inside                                    
no snmp-server location                      
no snmp-server contact                     
snmp-server enable traps snmp authentication linkup linkdown coldstart                                                                     
telnet timeout 5               
ssh timeout 5            
console timeout 0                
dhcpd auto_config outside                        
!

ssl encryption des-sha1 rc4-md5                              
!
!
prompt hostname context                      
Cryptochecksum:e5722c74390725d3c510ed55a7f6cb95                                              
: end    

 

高手帮忙看一下  到底什么原因导致网络一直掉线……