point to pint ipv6 address not pinging

[mishra_satyendra06]

Hello

i have two routers connected via gigabet interface . I have assinged 2 ips 2405:8a00:000a:0003:0000:0000:0000:0010 &
2405:8a00:000a:0003:0000:0000:0000:009 /126 . but these ips are not pinging to each other . pls suggest where i am worng .

[Michael Vincent]

They can't ping because they are not on the same subnet.

NOTE:  I'm assuming the second address you supplied ends in '0009' not '009' as in your post, although leading zero's don't really matter.

Remember IPv6 addresses are in hex, so:

HEX     =     Decimal

0009     =     9

0010     =     16

What you really want is:

2405:8a00:000a:0003:0000:0000:0000:0009 /126

2405:8a00:000a:0003:0000:0000:0000:000a /126

cheers.

[mishra_satyendra06]

Thanks michale ...

it was a confusion  during subnetting...

Thanks a lot

[ranraju]

Hi Satyendra,

I think you are trying to use 2 IPs .9 and .10 of your /126 subnet. But in your address (2405:8a00:000a:0003:0000:0000:0000:0010 - this becomes subnet router anycast address)   the last octet is : 0000 0000 0001 0000 which not .10 equivalent. I think you were looking to give 2405:8a00:000a:0003:0000:0000:0000:000A under the interface

So try giving 2405:8a00:000a:0003:0000:0000:0000:000A, and let us know if that works.

Regards,

Ranganath (Cisco)

[mishra_satyendra06]

Hello

I am planning to assign IPv6 addresses to my 20 servesr statically . My ipv6 subnet is

fdd2:1fb0:0d7e:3939::/64 and servers is dual stack .

my 15 IPs are  :

fdd2:1fb0:0d7e:3939::1

fdd2:1fb0:0d7e:3939::2

fdd2:1fb0:0d7e:3939::3

fdd2:1fb0:0d7e:3939::4

fdd2:1fb0:0d7e:3939::5

fdd2:1fb0:0d7e:3939::6

fdd2:1fb0:0d7e:3939::7

fdd2:1fb0:0d7e:3939::8

fdd2:1fb0:0d7e:3939::9

fdd2:1fb0:0d7e:3939::a

fdd2:1fb0:0d7e:3939::b

fdd2:1fb0:0d7e:3939::c

fdd2:1fb0:0d7e:3939::d

fdd2:1fb0:0d7e:3939::e

fdd2:1fb0:0d7e:3939::f

what will be the next 5 ips and how i will calculate ? pls help and tell the procedure addressing .

[Harold Ritter]

The ipv6 address is in hexadecimal format, so the next 5 addresses would be:

fdd2:1fb0:0d7e:3939::10,11,12,13,14

Hope this helps

[mishra_satyendra06]

Hello Harold

same i have given to the firtst 1---15 serves a a,b,c,d,e,f , but my question is  what  IPv6 address I have to Assign to 16th to 20 th servers .

[Harold Ritter]

Hi Satyendra,

So given that the IPv6 address is in hex format, the first 15 servers would be addressed from 1 to f as you mentioned. The next number in the sequence is then 10 in hexadecimal, which means 16 in decimal. The following numbers would be hex 11 (decimal 17), hex 12 (decimal 18), hex 13 (decimal 19) and hex 14 (decimal 20).

Hope this helps

[mishra_satyendra06]

hello harold ...

could you explain in details .... how to calculate ?

[Harold Ritter]

Hi Satyendra,

The hexadecimal system goes from 0 to F and just like the decimal system once you reach F, you increment the next digit and reset the current one to zero as follow:

Hex: 0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f,10,11,12,13,14,15,16,17,18,19,1a,1b,1c,1d,1e,1f,20,21,22,23,24,25,26,27,28,29,2a,2b,

2c,2d,2e,2f,30,31,32,33,34,35,36,37,38,39,3a,3b,3c,3d,3e,3f,40,41,42,43,44,45,46,47,48,49,4a,4b,4c,4d,4e,4f,50,51,

52,53,54,55,56,57,58,59,5a,5b,5c,5d,5e,5f,60................f0,f1,f2,f3,f4,f5,f6,f7,f8,f9,fa,fb,fc,fd,fe,ff,100,101,102,103.......

Hope this helps