Re: UDP port

From: Martin van den Nieuwelaar (martin@gadgets.co.nz)
Date: Tue Jul 03 2001 - 00:04:39 PDT

  • Next message: Liger-dc: "(no subject)"

    Hi Edson,

    The 0.0.0.0 means the daemon is not bound to any address in particular
    on your machine. So cflowd would receive packets coming in to any
    valid IP address for your machine (think of the case where you have
    multiple Ethernet cards for example).

    Hope this helps.

    -Martin

    Liger-dc wrote:
    >
    > Cflowd is having problems accepting icmp packets over my udp port from my router. I did a netstat
    > -an to see if my cflowd port (9995) would show up. It did, the one thing that seems interesting is
    > that it shows up as 0.0.0.0:9995 shouldt it have my IP address in front instead of the 4 zeros?
    >
    > [root@collector /sbin]# netstat -an | more
    > Active Internet connections (servers and established)
    > Proto Recv-Q Send-Q Local Address Foreign Address State
    > tcp 0 0 0.0.0.0:32768 0.0.0.0:* LISTEN
    > tcp 0 0 0.0.0.0:515 0.0.0.0:* LISTEN
    > tcp 0 0 0.0.0.0:9995 0.0.0.0:* LISTEN
    > tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN
    > tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN
    > tcp 0 0 0.0.0.0:6000 0.0.0.0:* LISTEN
    > tcp 0 0 0.0.0.0:113 0.0.0.0:* LISTEN
    > tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN
    > tcp 0 0 0.0.0.0:23 0.0.0.0:* LISTEN
    > tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
    > tcp 0 0 xx6.xx1.x.x0:23 xx6.xx1.x.x2:3653 ESTABLISHED
    > tcp 0 2 xx6.xx1.x.x0:23 xx6.xx1.x.x2:3673 ESTABLISHED
    > tcp 0 0 xx6.xx1.x.x0:21 xx6.xx1.x.x2:3667 ESTABLISHED
    > udp 0 0 0.0.0.0:32768 0.0.0.0:*
    > udp 0 0 xx6.xx1.x.x0:137 0.0.0.0:*
    > udp 0 0 0.0.0.0:137 0.0.0.0:*
    > udp 0 0 xx6.xx1.x.x0:138 0.0.0.0:*
    > udp 0 0 0.0.0.0:138 0.0.0.0:*
    > udp 0 0 0.0.0.0:9995 0.0.0.0:*
    > udp 0 0 0.0.0.0:791 0.0.0.0:*
    > udp 0 0 0.0.0.0:69 0.0.0.0:*
    > udp 0 0 0.0.0.0:111 0.0.0.0:*
    >
    > =====
    > Edson Manners
    > Academic Computing & Networking Services
    > Florida State University
    >
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