Re: LINKSYS BEFSR41
- From: Tech Zero <uselesspam@xxxxxxxxxxxx>
- Date: 26 Apr 2006 05:45:21 GMT
Reality folded in on itself, and somewhere the following words from
"Don Taylor" appeared in history:
I'm thinking of buying the LINKSYS BEFSR41 router. I've heard
this is a very good wired router. Will this unit server as a
good firwall also?
Yes...
All NAT routers also act as border firewalls. You may want to
turn on SPI (advanced/filters), but it doesn't really add much.
If you have any issues with P2P or IM clients drop me a line an
I'll try to help.
I was going to quietly email you with a question but I assume
"uselessspam@xxxxxxxxxxxx" isn't a valid address.
It's not munged... I never mung...
It just contains the word "spam" so viruses don't like it.
I've found that it works well for a public email addresses.
One person said that I should update the Linksys firmware because
it was almost five years old, the new version would fix some
security problems and I would have more options to set firewall
rules.
Theres the problem "if it works, don't fix (or break) it...
But I'll try to help out.
Before you do anything try using the connection directly. If everything
works then you know your NAT modem isn't the issue. I'd also double
check to see if you can "disable" the modem's NAT functions and just
let the linksys deal with it (probaly not possable).
Double NAT setups can be troublsome to setup and do cause problems when
either manufature changes things. Send me an email of HOW you have your
network curently setup and I'll see what else you can do.
The time issue first...
I've never had problems updating the time with any version of the
Lynksys bios but you will need a free timeserver to use. I like the
"ntp.org project" because they use a round robin setup, so you're not
linked to any one server. You'll need to open port 123 (it's udp),
which you can use a port trigger for.
FTP...
Linksys used a static FTP rule up untill /I think/ v1.39 of the bios.
Somehow this left the system open to explotation so they broke things
in order to patch it. To get FTP working again you'll need to setup a
port trigger on 21 to open up port 20, but because you're behind two
NATs you're better just using your FTP client in passive mode.
If you can't get it to work there are other possablities...
A roll back your Linksys bios to an earlier version would set things
back the way they where, but it is risky. And you should reset the
router to the default settings before trying it. I can recomend the
v1.40.2 bios, which I MAY have in the archives, but proceed at your
own risk. I have "bricked" 2 routers so far trying to downgrade them.
A second posablility is to use your Linksys as a hub by connecting the
NAT modem to port 1 on the Linksys. Set the router to same 192.168.x.x
address range as the modem and dissable the DHCP if the ActionTec Modem
has one already (similar to what I do here).
You might be able get the BEFSR41 to act as a "router" rather then a
"gateway" (NAT modem connected to the WAN port), but I couldn't get
mine to pass/fetch the DNS server IPs from my WRG54GS it the living
room (where my cable modem is)... Hope you have better luck.
--
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Lossing quality sleep to help others online since 1997...
.
- References:
- LINKSYS BEFSR41
- From: geo
- Re: LINKSYS BEFSR41
- From: Tech Zero
- Re: LINKSYS BEFSR41
- From: Don Taylor
- LINKSYS BEFSR41
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