Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I am transmitting UDP packets of say 2900 bytes. Due to fragmentation, packet is divided in 2 IP fragments. My tc u32 filter (more fragments bit and IP/PORT combination) matches only first fragment and second fragment is not matched.

How can I match the last fragment also using the filter. I am fine with either tc or iptables filter rul

share|improve this question

1 Answer 1

You can't. Load the nf_conntrack_ipv4. This module defragments packets then your rule should work.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.