Subnet Mask

We are going to implement Remote data access Disaster recovery
our head office system ip

ip    192.168.83.224
sub  255.255.255.0
gate 192.168.83 111

Remote site IP

ip 192.168.83.227
sub 255.255.255.192
gate 192.168.83.111

only we are going to change subnet mask 255.255.255.192 . is it support ?


 
Co0L_DBAAsked:
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Rob WilliamsConnect With a Mentor Commented:
A direct fiber connection is best, but you haven't given us any information. That likely is not possible.
A common solution is to use a VPN between the two sites. This requires 2 VPN capable routers, and as mentioned both sites must use different network ID's (Subnets).

Keep in mind the VPN will likely run at 1/100th of the speed of your LAN. Will this meet the need of your backup solution?
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nealerocksCommented:
So long as you have a firewall or router that is connecting the different subnets there is no reason why it wont work.
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Rob WilliamsCommented:
I assume you are going to connect these two offices by VPN?
If so they must reside on different subnets (not subnet masks). Even changing the mask, these two will still be on the same subnet and the two sites will not be able to route packets.
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clonga13Commented:
The head office won't route the traffic to the remote site because it thinks its part of its network (192.168.83.1-254) with the subnet mask of 255.255.255.0. If you want to use the same subnet, then there would need to be a bridge between the sites and with the same subnet mask. Best practice is to have different subnets. If you want to use 255.255.255.192, then you will need different default gateway addresses that show up on the local subnet or it won't work.
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Co0L_DBAAuthor Commented:
we have firewall and router can i access through  VLan  ? or how can i configure ?
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Rob WilliamsCommented:
How are you going to connet the two sites?
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Co0L_DBAAuthor Commented:
i don't know which one best boss ?
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clonga13Commented:
Can you provide some info as to what your connectivity looks like? Where is the firewall and router and vlans?
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Co0L_DBAAuthor Commented:
good
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