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    SubjectRe: iptables in 2.4.10, 2.4.11pre6 problems
    On 9 Oct 2001, Trever L. Adams wrote:

    > I am seeing messages such as:
    > Oct 9 12:52:51 smeagol kernel: Firewall:IN=ppp0 OUT= MAC=
    > SRC= DST=MY_IP_ADDRESS LEN=52 TOS=0x00 PREC=0x00 TTL=246
    > ID=1093 DF PROTO=TCP SPT=80 DPT=33157 WINDOW=34752 RES=0x00 ACK FIN
    > URGP=0
    > In my firewall logs. I see them for ACK RST as well. These are valid
    > connections. My rules follow for the most part (a few allowed
    > connections to the machine in question have been removed from the
    > list). This often leaves open connections in a half closed state on
    > machines behind this firewall. It also some times kills totally open
    > connections and I see packets rejected that should be allowed through.

    I see this too. iptables is refusing packets on locally-initiated TCP
    connections when the RELATED,ESTABLISHED rule should be letting them

    I mentioned this problem on the netfilter list but my message fell into
    a black hole and was apparently beyond the horizon of the developers.


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