Specifications
Examples of IP Filter Profiles
66 AVM Access Server – 5 AVM Access Server Concepts and Functional Principles
Active FTP data connection set-up
(File Transfer Protocol)
Accept This ensures that your local
users can download files
from FTP servers in the
Internet.
Note: You can deactivate this
filter rule if all FTP clients in
your network use “passive
FTP”.
Active TCP connection set-up Drop This rule discards all
attempts to set up TCP
connections, except those
explicitly accepted by one of
the active rules listed above.
Active TCP packets Accept This rule admits reply
packets to connections
initiated from within your
network.
Active ICMP packets
(Internet Control Message
Protocol)
Accept This rule allows error
messages from Internet
servers to reach computers
in your network. ICMP
packets carry error messages
about other Internet
services, such as the
indication that a requested
computer in the Internet is
not reachable.
Active AH packets
(Virtual Private Network)
Accept If you have configured VPN
connections, activate this
rule for the Internet
connection over which the
VPN links are carried.
Active ESP packets
(Virtual Private Network)
Accept If you have configured VPN
connections, activate this
rule for the Internet
connection over which the
VPN links are carried.
Status Service/Source/Destination Action Remarks