| Author |
Message |
TL
Guest
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 Posted:
Tue Dec 13, 2005 12:33 am Post subject:
Monitor sessions |
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Can anyone shed some light on this issue.
When i enable monitor session the destination port disables
monitor session 1 source interface FastEthernet1/0/1
monitor session 1 destination interface FastEthernet1/0/15
Both are in the default same VLan
this is the output of sho monitor
Type : Local Session
Source Ports :
Both : Fa1/0/1
Destination Ports : Fa1/0/15
Encapsulation : Native
Ingress : Disabled
Switch is a 3750 running ios Version 12.2(25r)SEB
TL |
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Hansang Bae
Guest
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| Posted:
Tue Dec 13, 2005 6:54 am Post subject:
Re: Monitor sessions |
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TL wrote:
| Quote: | Can anyone shed some light on this issue.
When i enable monitor session the destination port disables
|
That is by design.
| Quote: | monitor session 1 source interface FastEthernet1/0/1
monitor session 1 destination interface FastEthernet1/0/15
Both are in the default same VLan
this is the output of sho monitor
Type : Local Session
Source Ports :
Both : Fa1/0/1
Destination Ports : Fa1/0/15
Encapsulation : Native
Ingress : Disabled
Switch is a 3750 running ios Version 12.2(25r)SEB
|
By design, the destination port will not accept any traffic. i.e. you
can't use your your sniffer port to access your sniffer.
--
hsb
"Somehow I imagined this experience would be more rewarding" Calvin
**************************ROT13 MY ADDRESS*************************
Due to the volume of email that I receive, I may not be able to
reply to emails sent to my account. Please post a followup instead.
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Hansang Bae
Guest
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| Posted:
Tue Dec 13, 2005 8:42 am Post subject:
Re: Monitor sessions |
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Cen wrote:
| Quote: | It's the correct behaviour.
However, you can 'inject' traffic into the destination port by using
the 'ingress' parameter of the monitor command. Refer to cisco
documentation.
|
only on some platforms. I believe for the 3750's it is not possible.
--
hsb
"Somehow I imagined this experience would be more rewarding" Calvin
**************************ROT13 MY ADDRESS*************************
Due to the volume of email that I receive, I may not be able to
reply to emails sent to my account. Please post a followup instead.
******************************************************************** |
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Cen
Guest
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| Posted:
Tue Dec 13, 2005 8:51 am Post subject:
Re: Monitor sessions |
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It's the correct behaviour.
However, you can 'inject' traffic into the destination port by using the
'ingress' parameter of the monitor command.
Refer to cisco documentation.
"TL" <tlanum@yahoo.com> wrote in message
news:querp19g4c8niir4ka3lo6t9nhcv092eo4@4ax.com...
| Quote: | Can anyone shed some light on this issue.
When i enable monitor session the destination port disables
monitor session 1 source interface FastEthernet1/0/1
monitor session 1 destination interface FastEthernet1/0/15
Both are in the default same VLan
this is the output of sho monitor
Type : Local Session
Source Ports :
Both : Fa1/0/1
Destination Ports : Fa1/0/15
Encapsulation : Native
Ingress : Disabled
Switch is a 3750 running ios Version 12.2(25r)SEB
TL |
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Guest
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| Posted:
Tue Dec 13, 2005 4:26 pm Post subject:
Re: Monitor sessions |
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| Quote: | When i enable monitor session the destination port disables
using the 'ingress' parameter of the monitor command.
only on some platforms. I believe for the 3750's it is not possible.
|
On 4500 I seem to need:
cat4000-i5s-mz.121-20.EW1
1 2 1000BaseX (GBIC) Supervisor(active) WS-X4515
2 48 10/100BaseTX (RJ45)V WS-X4148-RJ45V
3 48 10/100BaseTX (RJ45)V WS-X4148-RJ45V
6 48 10/100BaseTX (RJ45)V WS-X4148-RJ45V
monitor session 1 source interface Fa6/12
monitor session 1 destination interface Fa2/15 ingress vlan 6 learning
My PC works right now.
I do suspect that I have done mon sess and had
normal traffic 3750 but I can't recall for sure. |
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