do the following on your ssl-dc
"
conf t
ip route 0.0.0.0 0.0.0.0 10.6.78.1
"
telnet and ping are considered management traffic. The management traffic has its own routing table that is not the same as the production traffic.
The management route is configured in global config with the 'ip route' command.
NOT the "route" command under the proxy-vlan.
Gilles.