From: Duane Hill (no email)
Date: Tue Feb 27 2007 - 14:55:09 EST
On Tue, 27 Feb 2007, Victor Duchovni wrote:
> On Tue, Feb 27, 2007 at 02:45:48PM -0500, Wietse Venema wrote:
>> Victor Duchovni:
>>> On Tue, Feb 27, 2007 at 07:35:11PM +0000, Duane Hill wrote:
>>>>> Is there by any chance IPv6 traffic your system on port 25?
>>>> There shouldn't be any IP6 traffic. I only have two IPs defined on the NIC
>>>> as IP4. Nor do I see anything in logs with the IP6 notation.
>>> Do you have an IPv6 loopback address (::1)? Does netstat report any port
>>> 25 IPv6 listen endpoints?
>> FreeBSD always lists a bunch of link-local or network-local addresses:
>> em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>> inet6 fe80::211:25ff:feaf:772d%em0 prefixlen 64 scopeid 0x1
>> inet 192.168.248.237 netmask 0xffffff00 broadcast 192.168.248.255
>> ether 00:11:25:af:77:2d
>> media: Ethernet autoselect (100baseTX <full-duplex>)
>> status: active
> If the physical NIC has no public IPv6 addresses the most likely v6
> address to receive connections is ::1. This is worth a test:
> $ telnet ::1 25
# telnet ::1 25
telnet: connect to address ::1: No route to host
telnet: Unable to connect to remote host