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adjacentlink / emane

Distributed wireless network emulation framework
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Questions about IP header TOS value changes in EMANE #194

Closed szl0144 closed 3 years ago

szl0144 commented 3 years ago

Hi,

OS: ubuntu18.04 mgen: 5.02b EMANE:v1.2.6 EMANE tutorial:v0.2.8

I want to use two reserved bits in the 8 bits Type of service (TOS) field of IP header, I change the TOS value from default value 0 to 1 using mgen. But I found emanenode0 doesn't transmit any packets to nodes container, there are only some TCP, ARP and HTTPS handshakes between emanenode0 and nodes without any successful connections. Can you please tell me whether there is any rule blocking packets whose TOS is not 0 in EMANE?

Thank you very much!

Best, Shaoyi

sgalgano commented 3 years ago

There is no logic in the emulator or the open source radio models to drop packets based on TOS.

szl0144 commented 3 years ago

Thanks, I will go to parse the packets from MGEN to see where is the problem.

szl0144 commented 3 years ago

After the troubleshoot, I can receive the packets whose TOS value is 1 in EMANE container right now. Thanks!