(can be more strict with first any by putting local subnet instead) TODO: Only allow DNS from internal interfacesĮnable PAT overload (NAT) from WAN interface Configure outside / inside interfaces.Type config-register 0x2102, and press ENTER.Ĭonfigure port Fa3 to be the new WAN portĬreate access list allowing only internal subnet for SSH (optional) Type configure terminal, and press ENTER. The commands below will get it running from a clean slate to a running system. Below are my rough notes for configuring a Cisco 881W router with a broken WAN port from scratch.
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