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Can ping from PC to cisco router's ipv6 address (from LAN side) but can't ping from one pc to other's ipv6 address

chintankothari101991
Level 1
Level 1

‎04-18-2015 12:52 AM - edited ‎03-01-2019 05:46 PM

 

 


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PCs are connected to Cisco switch and up link goes to Cisco 1841 router on router LAN side interface f0/0 ip add: 2001:xx:xx:xx:1000::64/120. 

I am not able to give prefix length in Windows XP. but I can give prefix in Windows 7 machine.

 

output of ipconfig from pc1:

Ethernet Adapter Local Area Connection: 
Connection-specific DNS Suffix . 
IP Address. . . . . . . . . . . . : 192.168.1.10 
Subnet Mask . . . . . . . . . . . : 255.255.255.0 
IP Address. . . . . . . . . . . . : 2001:xx:xx:xx:1000::a 
IP Address. . . . . . . . . . . . : fe80::d465:d174:df76:f501%13 
Default Gateway . . . . . . . . . : 192.168.1.100
                                    2001:xx:xx:xx:1000::64

My problem is I can ping from PC to router's f0/0:2001:xx:xx:xx:1000::64 and from router to PC also. But I can't ping from pc1(2001:xx:xx:xx:1000::a) to pc2(2001:xx:xx:xx:1000::b) i get request timed out, whereas I can ping IPv4 address of pc2. and firewall is off on every pcs.

PC2 :ipv4 address : 192.168.1.11

         ipv6 address : 2001:xx:xx:xx:1000::b

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