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| From: | Jason Wang |
| Subject: | Re: [Qemu-devel] [RFC PATCH 3/3] filter-rewriter: rewrite tcp packet to keep secondary connection |
| Date: | Wed, 29 Jun 2016 09:55:03 +0800 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0 |
On 2016年06月28日 14:33, Zhang Chen wrote:
primary guest response pkt(seq=primary_seq+1,ack=client_seq+1+data_len,flag=ACK) secondary guest response pkt(seq=secondary_seq+1,ack=client_seq+1+data_len,flag=ACK)Is ACK a must here?Yes.Looks not, e.g what happens if guest does not use piggybacking acks?If guest does not use piggybacking acks, it will send a independent packet for ack.we will get this packet. like:pkt(seq=xxxx,ack=xxx,flag=ACK).
Right, so looks like if guest want to send some data too, it can send tcp packet without ACK set?
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