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I have two win7 PCs: pc1 is 10.10.10.2 pc2 is 10.10.10.3when I execute "ping 10.10.10.3" from 10.10.10.2,using wireshark to check the ttl value in the ping request packet,the ttl is 64;however when I execute "ping 10.10.10.2" from 10.1...
topology： R3---R2---R4R3 and left interface of R2 in 10.10.10.0/24;R4 and right interface of R2 in 10.10.20.0/24 subnet. when R3 ping 10.10.20.255,it receives a reply from 10.10.10.1 which is R2's interface in 10.10.10.0/24 subnet. why?In my opin...
"The same choice would be made no matter whether the destination was 10.10.20.1 or was 10.10.20.255 . Essentially the router makes its choice by considering the routing table" This is the confusing point,there are two ways available:1.use ping echo p...
"In preparing the ping response it must choose which interface it will use to send the response and it chooses its left side interface. ",the "interface choosing" only happens when the packet is a broadcast?if the destination address is 10.10.20.1,no...
em...I think I get the point "A router can have many interfaces,when the router receives a packet,if the packet is for one of this router's interfaces,then the router should choose a closer interface to reply the packet",right?But how to explain what...
After searching google for long time,I got some details about TTL settings in IP segment: it seems that different OS have seperate default TTL settings for ICMP REQUEST and ICMP REPLY. Thank u all the same!
