Help needed with TG585 and LAN IP setup
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Help needed with TG585 and LAN IP setup
12-07-2010 11:53 AM
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We have a static IP address which, when connected, the router picks up from the internet. Due to the way our internal network is set up through a hardware firewall we also need this IP address to be set up on the LAN side of the router.
The problem being is that we cannot get both the WAN and LAN to have this IP address simultaneously. Our old Solwise router let us do this no problem.
Is there any way, through CLI, to be able to pass the IP address from the WAN through to the LAN side?
Any help is much appreciated.
TMBS
Re: Help needed with TG585 and LAN IP setup
12-07-2010 1:10 PM
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1. Use your Solwise router, just re-program it with your Plusnet username and password.
2. Request a block of four IP addresses, to use one for the router and one for the firewall. This is likely to require some re-configuring of your internal network but would be the preferable solution.
Re: Help needed with TG585 and LAN IP setup
12-07-2010 3:35 PM
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Re: Help needed with TG585 and LAN IP setup
12-07-2010 4:02 PM
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Re: Help needed with TG585 and LAN IP setup
13-07-2010 10:44 AM
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The Solwise router is one Plus.net supplied to us about seven years ago and we have decided to replace it with a new one (the TG585) as we are having frequent connection problems to the internet so are trying to find the cause. Calls to Plus.net when this is happening show no problems with the connection coming into the building so it must be something internal to our network.
We already have multiple static IP addresses set up (router, firewall, mail server etc), it's just that the firewall looks for a connection to the router with the IP address that is assigned to it on the WAN side. If we disconnect the router from the internet and give the IP address to the LAN side the firewall can see it OK.
I think we need to check the firewall settings to see if we can alter it to look for a different IP address for the router to avoid the conflict.
Regards,
TMBS
Re: Help needed with TG585 and LAN IP setup
13-07-2010 11:32 AM
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192.168.0.1 to 192.168.255.255
172.16.0.0 to 172.32.255.255
10.0.0.0 to 10.255.255.255
It's best to set up your LAN to conform to this.
Re: Help needed with TG585 and LAN IP setup
13-07-2010 11:58 AM
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Re: Help needed with TG585 and LAN IP setup
13-07-2010 2:03 PM
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Re: Help needed with TG585 and LAN IP setup
13-07-2010 2:19 PM
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Quote from: TMBS we're trying not to change too much that they set up for us in the first place.
I may be misunderstanding but it sounds as if it was set up badly. Are your (fixed) LAN network addresses within the ranges I quoted?
Edit: By which I mean do they begin 192.168. or 10. or 172.x where x lies between 16 and 32.
Re: Help needed with TG585 and LAN IP setup
13-07-2010 4:13 PM
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Then the third party came along and put in the whole firewall / email & website filtering solution in place with the old Solwise router when we signed up to Plus.net. This has worked OK for years up until recently when we started getting timeouts and slow connectivity to the internet, hence replacing the router to see if that solves the problem.
All this seems to be is a connection problem between the firewall and the router.
Re: Help needed with TG585 and LAN IP setup
13-07-2010 4:42 PM
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Quote from: ReedRichards I may be misunderstanding but it sounds as if it was set up badly.
Bit hard to say that without knowing the full details of the existing network, or what the functional and security requirements for the original design were.
TBH as it sounds like there's a real live business hanging off this DSL connection then perhaps the easiest and less risky thing might be to get a different router/modem that will run with the same public WAN and LAN addresses. ISTR that Zyxels will do this out of the box, and perhaps Netgears as well although I'm not so sure there. It is likely that the TG585 can be made to do this (after all the WAN ip address isn't really that important in PPP and IP routing terms) but it means fiddling around in the CLI and then remembering how it was done so that it can be recreated or restored later.
Another less attractive option might be to see whether the existing firewall can have a DSL modem (internal PCI or external ethernet) added and remove the need for a separate DSL modem/router completely. Whether that's possible depends on the make/model/type of firewall.
Re: Help needed with TG585 and LAN IP setup
13-07-2010 6:50 PM
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Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
Re: Help needed with TG585 and LAN IP setup
14-07-2010 9:18 AM
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In the meantime I will carry on trying to get this to work just for the 'fun' of it and the learning experience.
Thank you to all who replied.
TMBS
Re: Help needed with TG585 and LAN IP setup
14-07-2010 9:39 AM
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