SBS2003, Servgate sg100 and dead router

[Judge_Joolz]

Hi, trying to help out a friend..

SBS2003 server connected to a Servgate sg100 hardware firewall/vpn, connected to adsl modem/router etc.

Router has died and been replaced with a Netgear N300. This is working and connects fine with the internet both wireless and wired.

But, there is no connection from the the server/network out to the internet.

Netgear is DHCP'ing normal 192.168.0.x , it is connected to through an ethernet cable to the LAN port on the SG100 (which is labelled 192.168.61.10 on the SG100)

SG100 is connected to the network through the WAN port (labelled 82.152.80.54)

OLD dead router was labelled (WAN 82.152.80.53)

Server default g/w is 192.168.61.10 (see SG100)

I cant find any info on the SG100. I am guessing that the Netgear N300/SG100 needs to be configured so that they pass through.

Any help/info gratefully received !

If more info is needed, please let me know and I will try and post it.

JJ

 

[KM-Tiger]

Netgear is DHCP'ing normal 192.168.0.x , it is connected to through an ethernet cable to the LAN port on the SG100 (which is labelled 192.168.61.10 on the SG100)

192.168.0.x won't talk to 192.168.61.x, unless both have a /16 netmask (255.255.0.0). More likely they are both /24 (255.255.255.0).

Sounds like in the old setup the router was configured to use, and DHCP, 192.168.61.0/24

If that's the case, probably quickest solution would be to reconfigure the router and leave the firewall alone.

 

[Judge_Joolz]

192.168.0.x won't talk to 192.168.61.x, unless both have a /16 netmask (255.255.0.0). More likely they are both /24 (255.255.255.0).

Sounds like in the old setup the router was configured to use, and DHCP, 192.168.61.0/24

If that's the case, probably quickest solution would be to reconfigure the router and leave the firewall alone.

That is what I was thinking, but when I looked at it , it seems you can only change the last digit 192.168.0.x, unless anybody knows different ?

JJ

 

[Posilan]

That is what I was thinking, but when I looked at it , it seems you can only change the last digit 192.168.0.x, unless anybody knows different ?

JJ

I'm not too familiar with that model router, but if it's also doing DHCP, the web interface may be preventing you changing the subnet to one it knows will not work with it's DHCP pool.

Try disabling DHCP, change the router's IP then activate DHCP again.

Steve

 

[Judge_Joolz]

I did try disabling DHCP (through web interface), but then the laptop wouldnt connect to it any more. Because it was DHCP'ing off it I guess?! I had to do a factory reset to be able to get back into the console.

When you save to config to the router after turning off dhcp - you lose the web console. Is there a specific order I should be doing things?

Thanks so far!

JJ

 

[KM-Tiger]

Don't know that router, but some allow an interface to have more than one address - so you could leave the 192.168.0.x range in DHCP, and add the address 192.168.61.x

If it cannot do that there is a different method.

 

[Judge_Joolz]

I have the full manual for the router now, so I will give that a go and report back !

Cheers so far

JJ

 

[DarrenMcCabe]

As others have said, you need to either:

- Change the router Ip address to the Gateway address of the server
- Change the server addressing scheme to be 192.168.0.X

Also just a thought, make sure you dont have both the router and server doing DHCP.

 

[Jim2k]

As Darren says, normally your server would handle dhcp. Turn off dhcp on router, manually configure pc to a 192.168.0.x address and then reconfig router to 61.x

Reset pc to dhcp and then rerun the connection wizard on server.