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cant ping from VPN concentrator

Posted on 2007-04-11
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Last Modified: 2011-10-03
i have a VPN concentrator 3000 series - and all of a sudden users that are vpn'ed in cant access subnets at our remote offices. i cant ping other subnets from inside the vpn concentrator either.
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Question by:jmcrae72
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by:RGRodgers
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Obvious questions are:  What changed?  What have you done to try to resolve it?  When you did that, what happened?  
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by:jmcrae72
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only an admin password - nothing that i know of. if i vpn in and tracert to a  remote subnet it routes the packets out the public interface when it should goto the default router 172.16.1.1 not 4.x.x.x.
From the 172.16.1.1 router you can get to anything.
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by:RGRodgers
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If you look at how it really operates, tracert is basically a hack.  It does not follow the VPN path.  And, it many cases, it offers a best guess of the path.  It is a good troubleshooting tool, but don't believe everything it tells you, especially when looking at a VPN.

You say this happened all of a sudden.  I assume from that statement that what isn't working now was working before it suddenly didn't.  Something changed to make thsi happen.

Why don't you connect, do a "ipconfig /all" and past the results here.  Do the same with "route print".  That could get us started.
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by:jmcrae72
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ok we figured it out - i was locking down routers last week and i disabled proxy arp on the router next to the vpn. i have static routes that were pointing to the destination as "interface" so we changed it to "router address" under "configuration"  "static routes" and we were back up agin.
i had to open a TAC case - i would have never put those two together.
thanks for the replys.
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