Re: Telnet on port 179

From: Charles Henson (chenson@gmail.com)
Date: Wed Oct 22 2008 - 22:34:26 ARST

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I believe if you sent an RST then you are not listening on 179. Else
you would have completed the 3 way handshake and then failed on the
protocol. Someone correct me if I'm wrong here.

On 10/22/08, Mahesh Shivaswamy <maheshs.cisco@gmail.com> wrote:
> I need to chk if SW1 is listening on port 179.
>
> rgds
> Mahesh
>
>
> On Wed, Oct 22, 2008 at 7:00 PM, Hobbs <deadheadblues@gmail.com> wrote:
>
>> what are you trying to test?
>>
>> On Wed, Oct 22, 2008 at 5:54 PM, Mahesh Shivaswamy <
>> maheshs.cisco@gmail.com> wrote:
>>
>>> Hi,
>>>
>>> When I telnet on port 23 between R4 & SW1 its fine, but when I telnet on
>>> port 179 I get a connection refuse msg, there is no access list on SW1.
>>>
>>> R4#telnet 154.1.47.7
>>> Trying 154.1.47.7 ... Open
>>>
>>>
>>> User Access Verification
>>>
>>> Password:
>>>
>>> R4#telnet 154.1.47.7 179
>>> Trying 154.1.47.7, 179 ...
>>> % Connection refused by remote host
>>>
>>> SW1#
>>> 1d11h: tcp0: I LISTEN 154.1.47.4:18645 154.1.47.7:179 seq 2990396955
>>> OPTS 4 SYN WIN 4128
>>> 1d11h: TCP: sent RST to 154.1.47.4:18645 from 154.1.47.7:179
>>>
>>> SW1#sh run int vlan 47
>>> Building configuration...
>>>
>>> Current configuration : 61 bytes
>>> !
>>> interface Vlan47
>>> ip address 154.1.47.7 255.255.255.0
>>> end
>>>
>>> Any suggestion what is the issue, this is the only way I can test, any
>>> suggestion ?
>>>
>>> rgds
>>> Mahesh
>>>
>>>
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-- Charles

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