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hide traceroute

Hello all 

İ have internet router in  my topology . it is first face of internet, has interface connected to ISP router. İ want to hide my interface IP traceroute among internet . My access-list looks ok, it prevents icmp-echo  but still ping request reach to my interface , i drop them but i still answer as "ICMP type time-to-live-exceeded" . i do not want to answer anything.  Here is my access-list ( it is inbound direction ) 

 

access-list 150 deny icmp any any unreachable
access-list 150 deny icmp any any ttl-exceeded
access-list 150 deny icmp any any echo
access-list 150 deny icmp any any time-exceeded
access-list 150 deny icmp any any echo-reply
access-list 150 deny udp any any eq echo
access-list 150 deny udp any eq echo any
access-list 150 permit ip any any

 

Thank you

1 Accepted Solution

Accepted Solutions

Did you try to apply the same ACL in outbound direction?

View solution in original post

4 Replies 4

Did you try to apply the same ACL in outbound direction?

same acl ? 

it works man  

yeah i tried that before but created a new acl . now applied same and worked. 

balaji.bandi
Hall of Fame
Hall of Fame

what is the device here, what code running ?

can you post example output for us to understand the issue ?

 

When you doing tranceroute, have you used source as that interface where this ACL applied ?

 

 Here is my access-list ( it is inbound direction ) 

where is the source IP and destination IP ?

 

BB

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