Re: 56k dial up on laptop 802.11G ?

Floyd L. Davidson wrote:

> Duane Arnold <notme@xxxxxxxxx> wrote:
>>floyd@xxxxxxxxxx (Floyd L. Davidson) wrote in
>>news:874qajfbw2.fld@xxxxxxxxxx:
>>>
>>> You are absolutely right. The OP could probably find one that
>>> someone is throwing in the trash that would be far more than is
>>> needed for a firewall. And despite what David thinks, booting
>>> up a Linux firewall is pretty darned easy (e.g., every Linksys
>>> WRT54G does it in about 7 seconds).
>>>
>>> Total cost: $0.
>>>
>>
>>No Linksys router has a FW. The NAT router has SPI maybe and some other FW
>>like features. And it can be used as part of a total FW solution as a
>>border device. But it's not an appliance that is running FW software, even
>>if it is running SPI.
>
> The Linksys WRT54G series of wireless routers all have firewall
> software.
>

No NAT router is running FW software in the traditional sense. The
manufactures of the product can hype it all they want as being a solution
that's running FW software.

I suggest that you drop a line at comp.security.firewalls about a WRT54G or
any other NAT (no FW) router being used in the home to people that make a
living at it about this.

If the WRT54G can meet all the specs below, then it's an appliance running
FW software. If the WRT54G cannot meet the specs, then it's not an
appliance that's running FW software. I know that the low-end Watchguard
Firebox III SOHO 6 firewall appliance that I use meets those specs. I know
that the 54G or anyother Linksys NAT router or any NAT router for home
usage period is not running FW software. The NAT routers are good enough in
the protection as long as one is not doing high risk things like port
forwarding.

<snip>

What does a firewall do?

A firewall examines all traffic routed between the two networks to see if it
meets certain criteria. If it does, it is routed between the networks,
otherwise it is stopped. A firewall filters both inbound and outbound
traffic. It can also manage public access to private networked resources
such as host applications. It can be used to log all attempts to enter the
private network and trigger alarms when hostile or unauthorized entry is
attempted. Firewalls can filter packets based on their source and
destination addresses and port numbers. This is known as address filtering.
Firewalls can also filter specific types of network traffic. This is also
known as protocol filtering because the decision to forward or reject
traffic is dependant upon the protocol used, for example HTTP, ftp or
telnet. Firewalls can also filter traffic by packet attribute or state.

<snip>

Duane :)
.

Relevant Pages

  • Re: default FORWARD policy?
    ... > I have a setup where a box is acting as a firewall and NAT router. ... > firewall is to keep people out, not to block myself from doing stuff). ... You have set up a _firewall_, which job is to filter ...
    (comp.os.linux.security)
  • Re: 56k dial up on laptop 802.11G ?
    ... >> The Linksys WRT54G series of wireless routers all have firewall ... >No NAT router is running FW software in the traditional sense. ... Linux firewall is not a firewall... ... >Firewalls can also filter specific types of network traffic. ...
    (alt.internet.wireless)
  • Re: D-Link 604 Router
    ... > I can filter outbound connections using URL filtering using something ... > firewall software or hardware and no router, ...
    (comp.security.firewalls)
  • Re: Hardware Firewall Recommendation
    ... Deny Java Applets ... Web Blocker Schedule - enable/disable at programmed times ... Web Blocker non-Operational Controls (what to filter when OFF) ... block .EXE you never have to go back and update the firewall to keep ...
    (comp.security.firewalls)
  • Re: BLOCKING IPs
    ... In the NAT/Basic firewall tab, ... In the right pane of the windows, right click Network connections. ... click Inbound filter. ... > If you are using SBS 2003 Premium, you can use ISA server to block this ...
    (microsoft.public.windows.server.sbs)