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Home » GFI User Forums » Kerio Control » Ping replies being dropped after 7.4.1 Upgrade (Kerio not allowing remote pinging)
Re: Ping replies being dropped after 7.4.1 Upgrade [message #101905 is a reply to message #101898] Wed, 24 April 2013 16:37 Go to previous message
paja is currently offline  paja
Messages: 9
Registered: April 2013
The problem was, that ICMP packets were dropped at Kerio, because unexpected "Echo reply" packet. The ICMP traffic "Echo Request" was comming from the route which didn't touch Kerio. The target station didn't have a route back, so it routed "Echo reply" to gefault GW (Kerio) and it dropped them after that. When target machine pings source one, ICMP from source to taget starts to work, because the local routing tabel of target machime has been updated. The symptoms are exactly same as written at OP of this thread.
 
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