Why disable the router configuration by http and telnet?
• The IP Filter function, is typically used to protect the router configuration when running the router in bridged mode. • However, enabling IP Filter prevents the router from passing packets which are not of type TCP, UDP or ICMP. • Unfortunately these are precisely the types of packets that must be passed when running VPNs like IPsec. Up till now, the usual answer to this dilemma was not to enable IP Filter, set the router configuration username and password to “secure” values, and hope that no-one cracked them, hacked into your router, and switched off your Internet connectivity. However, there is another, more secure way – to disable the router configuration by http and telnet, so there is no router configuration to access – hence there is no need to use IP Filter to protect it.
