Why there is "any6" entry in Big-Ip connection table server side

you are using oneconnect, aren't you?

i understand with oneconnect, serverside is detached after sending response. clientside will be in connection table until it is closed e.g. FIN, idle timeout, etc.

root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.20.111:80
    ip-protocol tcp
    mask 255.255.255.255
    pool foo
    profiles {
        http { }
        oneconnect { }
        tcp { }
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 4
}
root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) list ltm pool foo
ltm pool foo {
    members {
        200.200.200.101:80 {
            address 200.200.200.101
        }
    }
}

 client sends FIN at 10:49:10

[root@ve11a:Active:Changes Pending] config  tcpdump -nni 0.0 host 172.28.20.111
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on 0.0, link-type EN10MB (Ethernet), capture size 96 bytes
10:48:54.510888 IP 192.168.206.145.56267 > 172.28.20.111.80: S 2766081639:2766081639(0) win 8192 
10:48:54.510937 IP 172.28.20.111.80 > 192.168.206.145.56267: S 985079591:985079591(0) ack 2766081640 win 3780 
10:48:54.513915 IP 192.168.206.145.56267 > 172.28.20.111.80: . ack 1 win 65520
10:48:54.513917 IP 192.168.206.145.56267 > 172.28.20.111.80: P 1:331(330) ack 1 win 65520
10:48:54.514008 IP 172.28.20.111.80 > 192.168.206.145.56267: . ack 331 win 4110
10:48:54.518133 IP 172.28.20.111.80 > 192.168.206.145.56267: P 1:390(389) ack 331 win 4110
10:48:54.559544 IP 192.168.206.145.56268 > 172.28.20.111.80: S 4265805511:4265805511(0) win 8192 
10:48:54.559600 IP 172.28.20.111.80 > 192.168.206.145.56268: S 750733927:750733927(0) ack 4265805512 win 3780 
10:48:54.561520 IP 192.168.206.145.56268 > 172.28.20.111.80: . ack 1 win 65520
10:48:54.562507 IP 192.168.206.145.56268 > 172.28.20.111.80: P 1:339(338) ack 1 win 65520
10:48:54.562563 IP 172.28.20.111.80 > 192.168.206.145.56268: . ack 339 win 4118
10:48:54.567574 IP 172.28.20.111.80 > 192.168.206.145.56268: P 1:1461(1460) ack 339 win 4118
10:48:54.567580 IP 172.28.20.111.80 > 192.168.206.145.56268: P 1461:2921(1460) ack 339 win 4118
10:48:54.569502 IP 172.28.20.111.80 > 192.168.206.145.56268: P 2921:4181(1260) ack 339 win 4118
10:48:54.571548 IP 192.168.206.145.56268 > 172.28.20.111.80: . ack 2921 win 65520
10:48:54.571585 IP 172.28.20.111.80 > 192.168.206.145.56268: P 4181:4283(102) ack 339 win 4118
10:48:54.573561 IP 192.168.206.145.56268 > 172.28.20.111.80: . ack 4283 win 65520
10:48:54.720922 IP 192.168.206.145.56267 > 172.28.20.111.80: . ack 390 win 65131

10:49:10.524597 IP 192.168.206.145.56268 > 172.28.20.111.80: F 339:339(0) ack 4283 win 65520
10:49:10.524781 IP 172.28.20.111.80 > 192.168.206.145.56268: . ack 340 win 4118
10:49:10.524790 IP 172.28.20.111.80 > 192.168.206.145.56268: F 4283:4283(0) ack 340 win 4118
10:49:10.525050 IP 192.168.206.145.56267 > 172.28.20.111.80: F 331:331(0) ack 390 win 65131
10:49:10.525061 IP 172.28.20.111.80 > 192.168.206.145.56267: . ack 332 win 4110
10:49:10.525061 IP 172.28.20.111.80 > 192.168.206.145.56267: F 390:390(0) ack 332 win 4110
10:49:10.527807 IP 192.168.206.145.56268 > 172.28.20.111.80: . ack 4284 win 65520
10:49:10.527958 IP 192.168.206.145.56267 > 172.28.20.111.80: . ack 391 win 65131

 clientside entry is deleted at 10:49:11

[root@ve11a:Active:Changes Pending] config  date;tmsh show sys connection cs-server-port 80
Sat Oct 19 10:48:56 SGT 2013
Sys::Connections
192.168.206.145:56268  172.28.20.111:80  any6.any  any6.any  tcp  2  (tmm: 0)  none
192.168.206.145:56267  172.28.20.111:80  any6.any  any6.any  tcp  2  (tmm: 1)  none
Total records returned: 2

[root@ve11a:Active:Changes Pending] config  date;tmsh show sys connection cs-server-port 80
Sat Oct 19 10:49:11 SGT 2013
Sys::Connections
Total records returned: 0