troubleshooting Question

Cisco 3620 Sub Interfaces / NAT

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networkfrontier asked on
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I am looking for some assistance in creating some
sub Interfaces and NAT on a CISCO 3620.


Here is what I am looking at doing.


Int 0/0.1  - 219.210.117.1 /25 (NO Nat)
Int 0/0.2  - 172.28.10.1   /23 (NAT Masquerade)
Int 0/0.3  - 172.28.12.1   /24 (NAT Masquerade)
Serial 0/0 - 219.63.168.10 /30

Default Route to 219.63.168.9 (via Serial 0/0)


I want Each Sub-Interface to be able to route to
the other sub interfaces and all to route to a the
internet via Serial 0/0 (T1 CSU/DSU).

I am running Cisco IOS ver 12.1(5)  and will be upgrading
to '12.3(5)' in the next couple of days.


Thanks for any help.

Mark Anderson

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