Half-bridge mode fills up ARP table (solution) - LinksysInfo - Community Forums for Linksys Devices
A link from pinboard
Linked on Tuesday 07 July, 2009
This is very useful to know - we have this combination of half-bridge ADSL modem / router and separate firewall. You need to ensure that the default route on the router is the private IP address of the modem, not just assume the router will sort it out with ARP...
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(Based on the tag(s) half-bridge, router and zyxel)