Used DSL modems

Brian Beardall brian at rapsure.net
Thu Sep 6 17:53:20 MDT 2007


On Thu, 2007-09-06 at 16:45 -0600, Corey Edwards wrote:
> On Thu, 2007-09-06 at 16:26 -0600, Erik R. Jensen wrote:
> > Corey Edwards wrote:
> > > The new Actiontecs are pretty awesome. Why I had one that lasted for 15
> > > whole minutes before I wanted to throw it out the window. That's gotta
> > > be some kinda record there.
> > 
> > I have an Actiontec 701WG. One thing that has improved uptime for me has 
> > been to reboot the router, then log into the busybox shell on the router 
> > and execute the following:
> > 
> > echo 8192 > /proc/sys/net/ipv4/netfilter/ip_conntrack_max
> > 
> > echo 3600 > 
> > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_established
> > 
> > echo 60 >  /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_close_wait
> > 
> > I had some large rsync processes that caused me uptime problems and 
> > changing these netfilter parameters on the router helped immensely. The 
> > defaults were pretty lame. The settings do not stick on a reboot.
> 
> That's good info to keep in mind. I've seen all sorts of random and
> negative behavior from Actiontecs. For mine, I actually got it to
> stabilize simply by turning off wireless. Now that it's just an ethernet
> router, it's much better behaved. I also avoid making changes to it like
> the plague because it used to occasionally default itself. Not cool.
> 
> Corey
> 
On my Actiontec I replaced the firmware with openwrt, and it couldn't be
more stable. The hardware is good, but the firmware that Actiontec has
installed on the modem has some bugs with the kernel. 

Brian




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