Connectivity Issue

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elkycali
DD-WRT Novice


Joined: 08 Jan 2016
Posts: 3

PostPosted: Tue Jan 12, 2016 1:13    Post subject: Connectivity Issue Reply with quote
Good day. I am experiencing some connectivity issue with my setup which I didn't have before. Here is my LAN config:

RG NVG589 (ATT DSL)
Connected to Internet
Passthrough to Linksys 1900AC V1
IP 192.168.3.254
Mask 255.255.255.0
DHCP 192.168.3.64 to x.x.3.69
Wireless disabled

Linksys 1900AC
Connected WAN to RG LAN
DD-WRT_1900
Router ModelLinksys WRT 1900AC
Firmware Version DD-WRT v3.0-r28575M kongmv (12/22/15)
DHCP enabled
Wireless disabled

WAN Config
Connection TypeAutomatic Configuration - DHCP
IP Address from ISP
Subnet Mask255.255.254.0
Gateway from ISP
DNS 192.168.3.254

LAN Config
IP Address 192.168.2.252
Subnet Mask 255.255.255.0
Gateway 192.168.3.254
Local DNS 192.168.3.254

Linksys WRT54GS
Connected LAN to 1900 LAN
Router Model Linksys WRT54G/GL/GS
Firmware Version DD-WRT v24-sp2 (10/10/09) mini - build 13064
DHCP disabled
Wireless disabled
WAN disabled

LAN Config
IP Address 192.168.2.3
Subnet Mask 255.255.255.0
Gateway 192.168.3.254
Local DNS 192.168.3.254

I cannot get a ping response to 192.168.2.3 and I cannot see it on my network. I have tried various setups on the WRT54 but this is the final one that I have stopped on. Before adding the dd-wrt FW on it, everything was running just fine. I am sure its not the FW but rather a config I have overlooked. Any help would be appreciated. Thanks in advance...Al[/url]
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BrainSlayer
Site Admin


Joined: 06 Jun 2006
Posts: 7492
Location: Dresden, Germany

PostPosted: Tue Jan 12, 2016 5:52    Post subject: Reply with quote
if you have a gateway assigned by your isp. keep the lan gateway at 0.0.0.0. its also not clear how everything is wired

your linksys wrt54g has no response since the lan network is out of range.

you have a lan ip of 192.168.2.something
but our lan gateway is 192.168.3.something

with a netmask of 255.255.255.0 this wont fit to each other.
you cannot ping the 192.168.2.xxx from the 192.168.3.xxx network (except if you add routes for these networks from both sides, but you havent)

its also not clear now you conigured your modem. it looks like its sharing the same ip from lan network, but is connected to the wan port. this makes no sense. wan and lan is isolated from each other by default

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