CNUDP是否能跨网段发送消息 - CnVCL 组件包 - CnPack Forum

topdemon

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#1

Post at 2008-11-25 20:50 Profile | Blog | P.M.

CNUDP是否能跨网段发送消息

能否告诉一下怎么设置

[ 本帖最后由 topdemon 于 2008-11-25 21:39 编辑 ]

topdemon

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#2

Post at 2008-11-26 10:10 Profile | Blog | P.M.

两个网段数据库连接是通的，可就是UDP发送消息收不到，高手请帮忙解答一下

Passion (LiuXiao)

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#3

Post at 2008-11-26 10:40 Profile | Blog | P.M.

跨子网不是udp的特有性能而是ip的。只要能ping通，udp也应该能通，除非路由器上禁掉了udp协议。

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#4

Post at 2008-11-26 10:59 Profile | Blog | P.M.

也就是说只要不能PING就不能用是吗

[ 本帖最后由 topdemon 于 2008-11-26 11:00 编辑 ]

Passion (LiuXiao)

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#5

Post at 2008-11-26 15:46 Profile | Blog | P.M.

一般是的。
但不能ping通也可能只是路由器屏蔽了ICMP协议而已。

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#6

Post at 2008-11-26 18:46 Profile | Blog | P.M.

多谢呀,如果说在路由器上把UDP不屏蔽,那UDP也就可以跨网段了吗?

Passion (LiuXiao)

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#7

Post at 2008-11-26 21:34 Profile | Blog | P.M.

对。就像TCP一样，也就是说像内网能够通过路由器访问外网的网页一样的原理。

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#8

Post at 2008-11-27 00:36 Profile | Blog | P.M.

多谢