Default Gateway for Switch

I have a PIX 515E with eth0 as outside, eth1 as inside and eth2 as dmz.
eth0 ip is 100.100.100.1/24
eth1 ip is 10.10.10.1/24 physical vlan2
eth2 ip is 172.10.10.1/24

eth1 connects to port fa1/0/40 on Cisco 3750
3750 has int vlan2 ip address 10.10.10.2/24 and int vlan3 ip address 10.10.20.1/24

fa1/0/40 is switchport trunk encap dot1q
3750 has ip routing enabled as it has no switchport link to another 3750 and for inter-vlan routing

Users on vlan3 will use 10.10.20.1 as default gateway

3750 will use default route 0.0.0.0 0.0.0.0 10.10.10.1

1.  Is this a viable configuration?

2.  Providing that the PIX allows icmp, should vlan3 users (and users on other 3750) be able to ping eht1 on PIX (10.10.10.1)?
cisdoz2Asked:
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lrmooreCommented:
1. Sure.

You need to add a static route on the PIX for 10.10.20.0/24 pointing back to the 3750. Until you do that, the answer to #2 is "they will be able to if you provide the proper routing entry on the PIX"

Suggestion: enable OSPF on both the PIX and the 3750..

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cisdoz2Author Commented:
Thanks for the quick response.
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