Can ping from outside, just not inside

Unanswered Question
Apr 15th, 2009
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I can ping from Server 1 on Subnet A, across the WAN, to Server 2 on Subnet B with no problems. Full response, no lost packets. But when I try to ping Server 2 on Subnet B from Server 3 on Subnet B, I get a reply on the first packet, then the rest time out.

At first I thought it was a Server 2008 thing, but I have the same issue trying to reach my Server 2003 box. I have replaced the switch, but I'm getting the same errors.

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lamav Wed, 04/15/2009 - 08:21
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Hi:


Please make sure that each box on subnet B has the same network mask configuration.


What kind of switch are you using?


Victor

tglidewell Wed, 04/15/2009 - 08:27
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WS-C3560-24PS


I will verify the subnet mask right now.


Thanks.

lamav Wed, 04/15/2009 - 08:28
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Please verify the integrity of the servers NIC connections to the switchports. Check for erros on the switchports, too.


Check the log of the switch for more clues...


Victor

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