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How Hide My Nexus Switch Ip address IN traceroute

Hi Dear Friend 

Question 1

How increase TTL In switch nexus For Hide my switch in Traceroute

Switch On layer 3 (no Switchport)

Question 2

How Blog Time exceeded Msg For Block Traceroute Tarffic for Specify Destnation On switch nexus 3000?

4 REPLIES 4
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VIP Expert

no tag-switching ip propagate-ttl forwarded  - this command we use generally for MPLS.

if you looking traditional then you need to block Type 3 echo ICMP i guess- never tested.



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I donnot RUN mpls on switch This Swtich in Layer3 and Gateway For few Servers

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Hi admin@atrinnet.net 

Easiest way I see is to configure IP access-lists, which blocks ICMP or UDP/PORT 334xx destined to the SVI, and apply that RACL on the SVI ingress. However, I would recommend not to do that, because it will remove some capability to troubleshoot on your Nexus switch. In the end Nexus is not a firewall, it's a L3 Switch.

 

Stay safe,

Sergiu

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