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This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!

Router - DLINK 320B: Difference between revisions

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(→‎Notes: added security warning about LAN-side access)
*They do support 1500 byte MTU (unlike the [[Router - ZyXEL_P660R-D1]]). (Your router will also have to support 1500+8=1508 byte MTU too though for this to be effective.)
*Their web interface is quite insecure and in ‘router’ mode they have various critical security bugs, which is why we do strongly suggest that customers never use them configured in 'router' mode. They are sold by AAISP as bridge-only. Older modems, the now obsolete pre-Z (-D1) model, were shipped with their reset button covered to protect it and prevent them from being reset!
*It is vital that you <b>not expose the LAN-side ethernet interface to users on the LAN</b> unless all possible users and devices on the LAN are trusted because of various critical security bugs in this respect. Because of such bugs, setting passwords on the modem’s admin web UI etc is not enough. If your router happens to prevent LAN-internal users from accessing the modem then so much the better, otherwise your main router’s facilities / internal firewalling and access controls should be explored.
*Chipset: The currently shipping DSL-320B-Z1 units (at the time of writing, December 2017), and those shipped from approx 2015 onwards, use an old but capable MediaTek/TrendChip chipset. The older -D1 routers were Broadcom-based.
*Incorrect manufacturer’s defaults: The default settings shown in the router’s web admin user interface show <b>defaults that are quite unsuitablequestionable</b>. It is important to enable the ‘bitswap’‘<b>bitswap</b>’ option for best reliability and performance in most cases. (See following section. See [http://forum.kitz.co.uk/index.php?topic=13296.0 discussion of bitswap].) This default seems so odd that perhaps this is just a bug in the DLink software, and the bitswap feature really defaults to ‘enabled’. (Needs a volunteer to do reliability testing to compare the two cases.)
 
== Initial setup using web admin interface ==
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