PIX Site to Site VPN

I am trying to get a site to site vpn working.

The main PIX is a 515 and the client PIX is a 501.

I have it all configured and the tunnel comes up fine, however, if I try and
ping hosts on the main site (515 side) from the remote site (501 side) it
doesn't ping until I log onto the host on the main side I am trying to
ping, ping the client PC from there, then the client PC can ping that host?

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Tags: Telecom cabling VoIP Networking Internet