Community discussions

MikroTik App
Frequent Visitor
Frequent Visitor
Topic Author
Posts: 66
Joined: Sun Dec 14, 2014 4:23 pm

Why so many dropped (invalid) FIN,ACKs

Tue Feb 10, 2015 11:45 am

see attachment.

It looks as if the connection tracking forgets a connection on the first FIN
and then all following packets are considered invalid?

Notice hos this applies to ACK,FIN from internal to websites outside..

Is this normal? I don't think so, as a FIN can be unilateral,
ie one side can close the connection (telling the other side:
No more data from me) but still be prepared to receive more
traffic from the other side. so tearing down the connection
just because one FIN was seen is bad, no?
You do not have the required permissions to view the files attached to this post.

Who is online

Users browsing this forum: Baidu [Spider] and 49 guests