subnet ping

D

dcastellacci

Hello,

the pc (A) ip 192.168.8.1 default gw ip 192.168.1.1 (router) --> internet

the pc (A) ping also pc (B) ip 192.168.8.2

the pc (A) on the other hand cannot make a ping from the pc (A) towards the ip 192.168.10.1 of the pc (B)

the pc (B) default gw ip 192.168.8.1

How can pc (A) ping to reach pc (B)'s ip 192.168.10.1 ?


//French
le pc (A) ip 192.168.8.1 default gw ip 192.168.1.1 (router) --> internet

le pc (A) ping aussi le pc (B) ip 192.168.8.2

le pc (A) par contre ne peut pas faire un ping depuis le pc (A) vers le ip 192.168.10.1 du pc (B)

le pc (B) default gw ip 192.168.8.1

Comment faire pour que le pc (A) puisse faire un ping pour atteindre l'ip 192.168.10.1 du pc (B) ?

Thank You
Didier
 
This looks extremely confus[ed|ing].

Assuming the usage of /24 subnets, why are the default gateways outside these subnets?
What's the router doing, does it actually route between these subnets?
etc. pp. ...
 
here is a diagram
//
internet----192.168.8.1 (A)-----o------(B) 192.168.8.2-------o------(B) 192.168.10.1

the pc (A) ip 192.168.8.1 default gw ip 192.168.1.1 (router) --> internet

the pc (A) ping also pc (B) ip 192.168.8.2

the pc (A) on the other hand cannot make a ping from the pc (A) towards the ip 192.168.10.1 of the pc (B)

the pc (B) default gw ip 192.168.8.1

How can pc (A) ping to reach pc (B)'s ip 192.168.10.1 ?

Thank You
Didier
 
Do you know how IP subnets and routing work at all? ? You didn't mention any netmask, so I assume you're using /24 subnets...

Having a default gateway outside your own subnet is certainly possible with adding some host routes, but it's "advanced stuff".

Start with a simple configuration where the router has an address in each subnet it routes.
 
Bonjour Didier,
I am not sure about the diagram. Has the PC (B) two network interfaces? I guess yes, but I am not sure.
 
internet----192.168.8.1/24-----PC (A)
PC (B)------192.168.8.2/24-------o------192.168.10.1/24


Yes the PC (B) has 2 network interfaces 1 interface 192.168.8.2/24
and the other 2 interface 192.168.10.1/24


Thank You
Didier
 
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