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Thanks by the help that I received from
all.
My router CISCO 2501 have a ethernet0
connected with my LAN and a Serial0 connected with a customer....
I can see everything in his server, but I wish that
he can�t see anything in my LAN.....
How can I filter this ???? I understand that if I
block all ports in my LAN, the response of my request(a request for a Web server
for example), not will be arrived,Ok. So, I have to maintain some ports opened,
ok ??? I used this :
access-list 102 permit tcp 0.0.0.0 255.255.255.255
128.x.x.x 0.255.255.255 established
access-list 102 permit tcp 0.0.0.0 255.255.255.255
128.x.x.x 0.255.255.255 gt 1023
access-list 102 permit tcp 0.0.0.0 255.255.255.255
128.x.x.x 0.255.255.255 eq 80
I believe that only I could establish a connection in ports related, and he
could not. What do you think ? Is this correct ? There is another way to do that
? Thank you...
Best regards
Alexandre de
Oliveira |
