On Mon, 4 Apr 2011 14:55:57 +0100, "Brian Cryer"
>A "wireless bridge adapter" is a bridge whereas a 4-port wireless router is
>a router. A bridge passes all traffic whereas a router only passes some of
>it. If you want a more technical summary then see Jeff's post or google for
Well, not quite. You can also filter traffic with bridging such as in
a VLAN. What a multiport bridge does is build a table of MAC
addresses that are connected to each port. No IP addresses are
involved. When a packet arrives at one port, the bridge checks the
packet header, to see where to send the packet. Since a given MAC
address can only be located at one port, it only sends the packet to
that port, with no traffic going to the other ports. If the
destination MAC address is not found in the table, the bridge does
nothing. If there is no destination MAC address, such as in a
broadcast packet, it goes to ALL the other ports.
A two port bridge works the same way, except that there are only 2
ports involved. If the destination MAC address is across the bridge,
the packet gets sent. If not, it doesn't get sent across the bridge.
If it's a broadcast packet, it gets sent. This dramatically cuts down
on the wasted traffic that would need to be transmitted via wireless.
A wireless bridge is exactly the same as a wired bridge (or the
multiport version which is an ethernet switch). The different types
of wireless bridges are detailed in the FAQ, but it's down right now.
I'll post the link when it returns. There a really old version at:
Scroll down to "Wi-Fi Hardware -> Wireless Bridge".
>I think you could use the 4-port wireless router as a bridge if you plugged
>your network into one of the 4 "internal" ports and not the single
>"external" port. You might want to disable DHCP on it too assuming you
>already have a router providing DHCP.
Nope. Some wireless routers can be convinced to act as access points,
wireless client bridge, wireless transparent bridge, point to point
bridge, point to multipoint bridge, ad-hoc client, etc. However, few
commodity wireless routers have the ability to do much more than act
as an access point or wireess router.
If you must use a wireless router as a bridge to another wireless
router, it can be done use WDS (wireless distribution system
Jeff Liebermann firstname.lastname@example.org
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558