What ACL ist preferable?
r1(config)#access-list 180 permit tcp host 192.168.1.1 host 10.0.1.11 eq telnet
r1(config)#access-list 180 permit tcp host 192.168.1.1 gt 1023 host 10.0.1.11 eq telnet
Is there an implicit rule in Ciso IOS or PIX or ASA that does not allow ports lower than 1024 to be used?