802.3与802.11协议的转换

[sunsuny]

哪位能介绍点相关的资料呀，多谢

[x86]

不清楚,帮你贴点东西:

Like I said, there are three cases in the 802.11->802.3 conversion

1) Full encapsulation
- in the 802.11 payload is a complete 802.3 frame
2) LLC, with a recognized protocol type
- strip off all headers, and stick a 802.3 header on the payload
with the correct frame type.
3) LLC, with an unrecognized protocol type
- strip off the 802.11 header, stick on a 802.3 header.

For 802.3->802.11, it's much simpler:

1) Full encapsulation (not normally used)
- Wrap a 802.11 header around the 802.3 frame.
2) LLC present
- strip off the 802.3 header, slap on a 802.11 header
3) No LLC:
- strip off the 802.3 header, slap on LLC and then 802.11.

[qizihuang]

LAN/802.3 <--> Linux Bridge <--> LAN/802.11, Is that easy?

[sunsuny]

请问转换时还要考虑mac帧数据的最小及最大(MTU)长度呀

[sunsuny]

我的模块怎样加入到bridge中呀

[tb01412]

我来接分的，给我一点点分就行了

[HollyHouyijun]

802.3->802.11， 转换主要是将ethernet头改为802.11的头格式， 后面的IP+TCP/UDP/ICMP/IGMP等等都不用变换的， 然后发送出去
802.11->802.3 将802.11头去掉封装上ethernet头就可以了的
至于是否要考虑mac帧数据的最小及最大(MTU)长度，这个问题是一定需要考虑的。