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Router showing same IP Subnet on both LAN and WAN.

Router: Dlink DIR 605l.

LAN:
IP Address :192.168.0.2
Subnet Mask :255.255.255.0
DHCP Server :Enabled

INTERNET:

Connection : DHCP

IP Address :
192.168.0.33
Subnet Mask :
255.255.255.0
Default Gateway :
192.168.0.1

Can sum1 plz explain this. for example, Normally when Wan IP Gateway is: 192.168.0.1 then LAN Changes to 192.168.1.1 .How the IP address can be in the same subnet on lan and wan?

Thanx to all.
2 answers Last reply Best Answer
More about router showing subnet lan wan
  1. Best answer
    Yup that is not going to work too well. Say the router was trying to figure out how to send data to a new ip such as 192.168.0.100. Which interface will he send the ARP to.

    I suppose you could make this work with proxy arp and doing strange stuff like sending out arp on 2 interfaces.

    I suspect you will quickly get duplicate IP addresses in a configuration like this.

    If you question is why did the router not change the IP for the LAN that I have no clue I normally manually select the lan addresses when there is any strangeness to the configuration.
  2. bill001g said:
    Yup that is not going to work too well. Say the router was trying to figure out how to send data to a new ip such as 192.168.0.100. Which interface will he send the ARP to.

    I suppose you could make this work with proxy arp and doing strange stuff like sending out arp on 2 interfaces.

    I suspect you will quickly get duplicate IP addresses in a configuration like this.

    If you question is why did the router not change the IP for the LAN that I have no clue I normally manually select the lan addresses when there is any strangeness to the configuration.



    Hi bill001g,

    As you said i changed the LAN IP manually to 192.168.1.1 and now its all working how it should be. before when i try to ping the Gateway IP there was many packet loss, even the ping time was showing above 2000+ ms. After changing Lan Ip manually, now there no packet loss and ping time is less than 10ms.

    Thanks.
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