I have configured an IPsec VPN tunnel between Cisco 1841 and DFL 300. It works fine when the load is less, but starts dropping as the load on the tunnel increases. If I constantly ping the remote LAN, it pings for 2530 times again request times out for 3040 times, again reconnects automatically and the process is repeated. When I replace the Cisco end with a DLink DI804HV, the tunnel continues without any disruption.
Can you please advice me. Thanks in advance
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