[ale] Bellsouth to Speakeasy?

[John Wells]

Hmmm...not sure I agree.  Note I said "to other boxes' port 25'. If I
simply telnetted to another box, it would be 23.

But, for instance:

telnet sourceillustrated.com 25

This is outbound traffic to another machine on port 25.

Here's the tcpdump:

# /usr/sbin/tcpdump -nn host sourceillustrated.com

tcpdump: listening on eth0
23:39:16.158858 172.16.2.8.32924 > 66.33.1.213.25: S
2277599437:2277599437(0) win 5840 <mss 1460,sackOK,timestamp 1925171
0,nop,wscale 0> (DF) [tos 0x10]
23:39:16.196884 66.33.1.213.25 > 172.16.2.8.32924: S
2470847785:2470847785(0) ack 2277599438 win 32476 <mss
1412,sackOK,timestamp 1738917213 1925171,nop,wscale 0> (DF)
23:39:16.196934 172.16.2.8.32924 > 66.33.1.213.25: . ack 1 win 5840
<nop,nop,timestamp 1925191 1738917213> (DF) [tos 0x10]
23:39:16.237111 66.33.1.213.25 > 172.16.2.8.32924: P 1:36(35) ack 1 win
32476 <nop,nop,timestamp 1738917217 1925191> (DF)
23:39:16.237158 172.16.2.8.32924 > 66.33.1.213.25: . ack 36 win 5840
<nop,nop,timestamp 1925211 1738917217> (DF) [tos 0x10]


Geoffrey said:
> John Wells wrote:
>> Pardon me for jumping in as well, but I'm on Bellsouth and can reach
>> any box running smtp via port 25.  If they were blocking outbound 25,
>> I wouldn't be able to telnet to other boxes' port 25, correct?  I can.
>
> Telnet is going out 23.
>



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