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IPSEC/GRE and SQL issue

Running Cisco831 Router to Cisco831 Router VPN (IPSEC/GRE)

Evrything works LAN to LAN except the clients SQL Replication on their 2000 Servers.

I have heard that MTU may be an issue because of the GRE TUnnel.

ANyone seen this? Solved this?

Thanks,

Bob

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Re: IPSEC/GRE and SQL issue

If mtu could be an issue, then I would suggest that you go throught this document which describes a feature called pre-fragmentation which allows an encrypting router to predetermine the encapsulated packet size from information available in transform sets.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftprefrg.htm

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