[c-nsp] Unknown connection on 3750

[Sergey Velikanov [Intelsoft]]

Hi

I've got two 3750 in stack. And suddenly I've discovered unknown tcp connection on this switch

#sh tcp brief
TCB       Local Address           Foreign Address        (state)
03AECA48  cat.ip.add.ress.22      192.168.10.83.49944    ESTAB   <-- this is connection of mine
03AB67D8  127.0.0.20.23           127.0.0.3.11001        ESTAB
03CC2648  127.0.0.20.23           127.0.0.3.11000        ESTAB

could anybody explain whois connected to 127.0.0.20 ?

I've tryed to connect to 127.0.0.20 with telnet command, but no luck.

PS: How can I listen all open ports on cisco?, smth like netstat -nlp in linux

# netstat -nlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:3306            0.0.0.0:*               LISTEN      1848/mysqld
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      23250/httpd
tcp        0      0 0.0.0.0:21              0.0.0.0:*               LISTEN      1065/proftpd
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1021/sshd