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蓝森林 http://www.lslnet.com 2006年7月26日 13:28

请教Y7975,VPN的问题


我的VPN结构是:LAN1---PIX---INTERNET--PIX-LAN2
问题是:我们的应用软件通过VPN建立连接后,30分钟左右就要断掉;这是能PING通,但是应用程序无法再连接,只有重新启动PC,才能再连接应用程序.不知道什么原因,请指教!
是不是 timeout conn 设置的问题?我不知道怎么解决? 同时,也请各位高手指导.

UP!

1. post configuration
2. setup syslog server, post the log at the time the connection is dropping
3. timeout conn may cause the problem, but default is not 30 min, also you are using VPN, i do not think it is the problem.
4. one more thing, sh ver
5. check the log on application server.

PIX Version 6.3(3)

interface ethernet0 auto



nat (inside) 0 access-list 110

nat (inside) 1 0.0.0.0 0.0.0.0 0 0

access-group 112 in interface outside

route outside 0.0.0.0 0.0.0.0 10.174.149.1 1

timeout xlate 0:05:00

timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00

timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00

timeout uauth 0:05:00 absolute

aaa-server TACACS+ protocol tacacs+

aaa-server RADIUS protocol radius

aaa-server LOCAL protocol local

http server enable

http 192.168.0.1 255.255.255.255 inside

no snmp-server location

no snmp-server contact

snmp-server community public

no snmp-server enable traps

floodguard enable

sysopt connection permit-ipsec

crypto ipsec transform-set myset esp-3des esp-md5-hmac

crypto map fxvpn 10 ipsec-isakmp

crypto map fxvpn 10 match address 110

crypto map fxvpn 10 set peer 10.169.131.68

crypto map fxvpn 10 set transform-set myset

crypto map fxvpn interface outside

isakmp enable outside

isakmp key ******** address 10.169.131.68 netmask 255.255.255.255

isakmp identity address

isakmp policy 10 authentication pre-share

isakmp policy 10 encryption 3des

isakmp policy 10 hash md5

isakmp policy 10 group 2

isakmp policy 10 lifetime 86400

telnet 192.168.1.0 255.255.255.0 outside

telnet 192.168.0.0 255.255.255.0 inside

telnet 192.168.1.0 255.255.255.0 inside

telnet timeout 5

ssh timeout 5

console timeout 0

dhcpd lease 3600

dhcpd ping_timeout 750

terminal width 80

Cryptochecksum:d24fcef7501e55474a8dc7f4eabaad8d

: end

base on the part that you post here, it is NOT the problem on PIX.

check #2 and #5 that i asked earlier first.

if you can capture the packets also helpful.

谢谢,我试试吧,有结果我告诉你.

还是想请教你,
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
这句表示什么意思,能解释一下吗?

可惜,老头子他休息了,真遗憾!

tcp session: 1:00:00 === 1 hour, within 1 hour, got to have conversation, otherwise, timeout

tcp half-closed, (send syn, wait for syn-ack) 10 min timeout

udp, within 2 min, allow return traffic back in .....

老头子,万分感谢!


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