Ricardo, are we talking of a linux box ? Look what i've found in one of
my linux machines ( redhat 7.3, kernel 2.4.20 )
[EMAIL PROTECTED] root]# ifconfig
[ ..... ]
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
[ .... ]
So my loopback interface IP address is 127.0.0.1 in a /8 network, right
? Let's play with some PINGs :)
[EMAIL PROTECTED] root]# ping -c 5 127.128.129.130
PING 127.128.129.130 (127.128.129.130) from 127.128.129.130 : 56(84) bytes
of data.
64 bytes from 127.128.129.130: icmp_seq=1 ttl=64 time=0.133 ms
64 bytes from 127.128.129.130: icmp_seq=2 ttl=64 time=0.059 ms
[EMAIL PROTECTED] root]# ping -c 5 127.250.240.230
PING 127.250.240.230 (127.250.240.230) from 127.250.240.230 : 56(84) bytes
of data.
64 bytes from 127.250.240.230: icmp_seq=1 ttl=64 time=0.132 ms
64 bytes from 127.250.240.230: icmp_seq=2 ttl=64 time=0.074 ms
In fact, seems that linux accepts ALL 127/8 addresses as loopback
addresses, despite the fact it shows you that your loopback IP is 127.0.0.1.
This will probably explain the 127.0.0.2 being pingable in your machine.
Sincerily,
Leonardo Rodrigues
----- Original Message -----
From: "Ricardo Kleemann" <[EMAIL PROTECTED]>
To: "Courier Users" <[EMAIL PROTECTED]>
Sent: Saturday, August 30, 2003 2:55 PM
Subject: [courier-users] (OT.. but please help!) How is 127.0.0.2 possible?
> Hi,
>
> I found this in my log:
>
> Aug 30 10:44:34 server2 courieresmtpd:
> error,relay=::ffff:127.0.0.2,from=<[EMAIL PROTECTED]>,to=<[EMAIL PROTECTED]>:
> 513 Relaying denied.
>
> And then I realized that 127.0.0.2 is actually pingable! But
> it doesn't show up in my ip address table.
>
> How can that be?
-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
courier-users mailing list
[EMAIL PROTECTED]
Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
