On 8/17/2013 11:00 AM, [email protected] wrote:
> Does your server have an IPv6 address?  It's possible something is accepting 
> incoming connections on an IPv6 interface and tunneling back into the 
> localhost interface for software that doesn't support IPv6 (i.e. spamdyke and 
> qmail).

Doesn't look like it.  em0 is the outside interface, retrieved with 
ifconfig:

em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC>
         ether 00:1b:21:xx:yy:zz
         inet 75.145.120.61 netmask 0xfffffffc broadcast 75.145.120.63
         inet 10.1.10.79 netmask 0xffffff00 broadcast 10.1.10.255
         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
         media: Ethernet autoselect (100baseTX <full-duplex>)
         status: active


Puzzling, but not even a nuisance.

Thanks.

Bucky


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