Janos Dohanics:
> em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>
> options=209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
> ether 00:16:3e:6f:18:c9
> inet 199.102.77.98 netmask 0xfffffff8 broadcast 199.102.77.103
> inet6 fe80::216:3eff:fe6f:18c9%em0 prefixlen 64 scopeid 0x2
> inet 199.102.77.99 netmask 0xfffffff8 broadcast 199.102.77.103
> inet 199.102.77.100 netmask 0xfffffff8 broadcast 199.102.77.103
> inet 199.102.77.101 netmask 0xfffffff8 broadcast 199.102.77.103
> inet 199.102.77.102 netmask 0xfffffff8 broadcast 199.102.77.103
> nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
> # postconf inet_interfaces
> inet_interfaces = 199.102.77.99, localhost
>
> # postconf smtp_bind_address
> smtp_bind_address =
>
> And on the destination server, the mail log says:
>
> Jun 5 19:23:52 barrida postfix/smtpd[57612]: connect from
> smtpc.telissant.net[199.102.77.99]
>
> Can you explain?
Perhaps your kernel picks a random IP address from five identically
configured addresses. My FreeBSD9 box has netmasks of 0xffffffff
on all IP address "aliases".
Perhaps you have smtp_bind_address in master.cf where it is typically
used.
Postfix source code is consistent with the documentation: the SMTP
client bind(2)s to an inet_interfaces address only if there is one
address of the requested type (IPv4 or IPv6), and if that address
is not a loopback address.
Wietse
