dyndns and the last hop - trying to set up ssh access to a machine on my LAN

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My scenario:
I'm on Verizon DSL using a Westell DSL modem which is configured in 'bridge' 
mode
Behind that is a Linksys WRT54G which is getting a dynamically assigned IP 
address from Verizon
Behind the Linksys is my home LAN

I want to have ssh access to my Linux box from the outside

I went to dyndns and set up an account, and that seems to be working
If I ping the address I gave myself, it resolves to the correct IP address 
which is the dynamic IP assigned to my Linksys router. I discovered the ddns 
feature in the Linksys configuration and set that up - it successfully 
contacted dyndns and dynamically updated my correct IP address.

Now, I'm stuck. How to get that last hop from my Linksys to my machine inside? 

Presumably, there's some setting in the Linksys to allow SSH, and then, I have 
to somehow route requests for SSH to my local machine. Can someone help me on 
this? I noticed  when setting up my host in dyndns that there was a wildcard 
setting, so I could set up a host, say 'claudejones.dyndns.org' and then, if 
wildcars were allowed, then 'computer1.claudejones.dns.org' could be 
resolved. Is this part of the puzzle? Do I use my computer name in front of 
the host name I set up, and allow wildcards in the dyndns configuration? Or 
is this all wrong? 
-- 
Claude Jones
Brunswick, MD, USA

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