[NCLUG] Fun and Action(tec)?

Benson Chow blc+nclug at mail.vanade.com
Sat Jul 25 08:21:01 MDT 2009


I was wonderring where I could find an audience for people who have Qwest 
DSL and mucked with their Actiontec routers, and well, this may be the 
right mailing list.  After many years with Qwest DSL, I'm no longer Cisco 
bound.  After a Cisco 675 got obsoleted by DMT, and a Cisco 678 was deemed 
obsolete by Qwest when I complained of instability in my DSL, I got an 
Actiontec GT701 from them.  All the better... yet another Linux box to 
play with!

The behavior of the GT701 is what I'm kind of concerned with.  First off I 
have a /29 static IP block I'm using with the 'modem'.  The two issues I'm 
having:

1 - I've been trying to get this router to route both my /29 and my 
10.0.0.x subnets so I can firewall off my wifi, but the best I've gotten 
was that my 10.0.0.x subnet would get packets mangled when trying to 
communicate to my /29 subnet.  It is partially due to having most 
of my /29 machines also having a 10.0.0.x address, but it looks like the 
GT701 is routing my 10.0.0.x addresses as real addresses instead of 
NATting them when dealing with my /29.  I'm still using my WRT54G for NAT 
for now, but once again, for better security I'd like to separate my 
wifi (and perhaps keep it in hotspot mode and do away with WEP...)

2 - My GT701 does not seem to respond properly with traceroutes.  I'm not 
sure what layer of the IP stack should be handling these.

I tried telnetting into the router and it looks like a fairly usual Linux 
machine with a (ugh) stripped down busybox.  So usual, I've been thinking 
about building custom firmware for it as I'd like it to syslog to my 
server and shut off all the unnecessary DNS lookups it seems to do...

Anyone have fun with their GT701?

Thanks,

-Benson



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