blok ip yg coba masuk pake ssh n telnet

http://www.forummikrotik.com/beginner-basics/553-ask-blok-ip-yg-coba-masuk-pake-ssh-n-telnet.html
ssh blocker

/ ip firewall filter

Quote:

add chain=input protocol=tcp dst-port=22 src-address-list=black_list action=drop \ comment="drop ssh brute forcers" disabled=no add chain=input protocol=tcp dst-port=22 connection-state=new \ src-address-list=ssh_stage3 action=add-src-to-address-list address-list=black_list address-list-timeout=1d \ comment="" disabled=no add chain=input protocol=tcp dst-port=22 connection-state=new \ src-address-list=ssh_stage2 action=add-src-to-address-list address-list=ssh_stage3 address-list-timeout=1m \ comment="" disabled=no add chain=input protocol=tcp dst-port=22 connection-state=new \ src-address-list=ssh_stage1 action=add-src-to-address-list address-list=ssh_stage2 address-list-timeout=1m \ comment="" disabled=no add chain=input protocol=tcp dst-port=22 connection-state=new \ action=add-src-to-address-list address-list=ssh_stage1 address-list-timeout=1m comment="" \ disabled=no

ftp blocker

/ ip firewall filter

Quote:

add chain=input protocol=tcp dst-port=21 src-address-list=black_list action=drop \ comment="drop ftp brute forcers" disabled=no add chain=input protocol=tcp dst-port=21 connection-state=new \ src-address-list=ftp_stage3 action=add-src-to-address-list address-list=black_list address-list-timeout=1d \ comment="" disabled=no add chain=input protocol=tcp dst-port=21 connection-state=new \ src-address-list=ftp_stage2 action=add-src-to-address-list address-list=ftp_stage3 address-list-timeout=1m \ comment="" disabled=no add chain=input protocol=tcp dst-port=21 connection-state=new \ src-address-list=ftp_stage1 action=add-src-to-address-list address-list=ftp_stage2 address-list-timeout=1m \ comment="" disabled=no add chain=input protocol=tcp dst-port=21 connection-state=new \ action=add-src-to-address-list address-list=ftp_stage1 address-list-timeout=1m comment="" \ disabled=no

telnet blocker

/ ip firewall filter

Quote:

add chain=input protocol=tcp dst-port=23 src-address-list=black_list action=drop \
comment="drop telnet brute forcers" disabled=no
add chain=input protocol=tcp dst-port=23 connection-state=new \
src-address-list=telnet_stage3 action=add-src-to-address-list address-list=black_list address-list-timeout=1d \
comment="" disabled=no
add chain=input protocol=tcp dst-port=23 connection-state=new \
src-address-list=telnet_stage2 action=add-src-to-address-list address-list=telnet_stage3 address-list-timeout=1m \
comment="" disabled=no
add chain=input protocol=tcp dst-port=23 connection-state=new \
src-address-list=telnet_stage1 action=add-src-to-address-list address-list=telnet_stage2 address-list-timeout=1m \
comment="" disabled=no
add chain=input protocol=tcp dst-port=23 connection-state=new \
action=add-src-to-address-list address-list=telnet_stage1 address-list-timeout=1m comment="" \
disabled=no
-----------------hemmm gimana klo misalnya dibikin suatu firewall yang hanya memperbolehkan alamat tertentu saja yang boleh mengakses router selain itu di drop.
misal untuk yang diperbolehkan untuk mengakses router adalah komputer administrator dengan ip 192.168.0.1

contoh firewall yang akan dibangun :

Code:

/ip firewall filter add chain=input src-address=192.168.0.1 action=accept
/ip firewall filter add chain=input action=drop

contoh diatas hanya memperbolehkan ip 192.168.0.1 saja yang bisa mengakses router

silahkan dieksperimen lagi bro

thanx---------