Telecom DNS broken Nth Shore Auckland since 11pm 5-Nov-12

Forums › Spark New Zealand (including Skinny and BigPipe) › Telecom DNS broken Nth Shore Auckland since 11pm 5-Nov-12

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sidefx

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#713851 7-Nov-2012 21:49

RunningMan: As fas as VDSL goes, mjb's correct - generally speaking 16dB isn't going to cut it for VDSL, but if you do flag up as being inside a VDSL area, it may pay to contact an ISP for a qualifying check just to see.

+1. Get a pre-qual done to check; from personal experience I'd recommend snap, though I believe unleash are also very good (business provider but they will sign up residential in some cases I understand)

EDIT: BTW, half bridging is a good option IMO. I previously had good success running an RTA1320 half bridging to router - they can be had on trademe for ~$5, fairly easy to setup and you obviously already have a router, so it'd be a cheap option to play with if you're having issues with the AM300 or just wanted to have a play (though I believe the AM300 works well for half bridging too) Hmm. though I don't see any on trademe now... maybe the old supplies have dried up.

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RunningMan

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#713901 8-Nov-2012 01:39

AM300 is good for half bridge too

virtuadude

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#713902 8-Nov-2012 02:36

... There is a broadband plan over and above on offer right now from employees to offer to friends / family if you're interested in that feel free to email me pl at telecom dot co dot nz and I could sort you out with that too. They have a mobile plan too.

Thanks that's nice of you.

virtuadude

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#713903 8-Nov-2012 02:44

RunningMan:In your current setup, your modem is doing NAT (translating from the single external IP address assigned by your ISP, to the internal address range 192.168.x.x of your private network). It is also running the firewall, and assigning DHCP addresses etc. The idea is to remove the burden of most of these tasks and put them on to the router.

Physically, you'll need to connect the LAN port of the modem to the WAN port of the router, connect your switch (and other computers) to the LAN port(s) of the router.

You'd assign an address like 192.168.2.1 to your modem.

EDIT: Forgot to say, you'd click the half bridge box on the modem, leave it set to PPPoA with your username/password VPI/VCI as normal.

The router then has NAT and DHCP turned back on.

Set the router to get it's WAN address via DHCP (what will happen is the modem will use some black magic and pass through the external ISP assigned address to the router).

The router LAN side then can be set up with the 192.168.1.x subnet, with the DHCP server assigning addresses in this range.

Job done!

Note the address you earlier assigned to the modem (192.168.2.1) is in a different subnet to your internal network, so the router passes a request for that address back out the WAN port, which means you can still access the WebIF for admin.

Thanks for the details, I'll have a go at half bridging it on the weekend (in case I end up with some Internet downtime) and see how it goes... I'm still not sure why the configuration of the AM300 stopped getting DNS with no settings changing. Is there any kind of attack or port scan or something that may have occurred to cause this, or was it all just a fluke because it's 4+yrs old and that power supply thing?

virtuadude

40 posts

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#713904 8-Nov-2012 02:46

sidefx:
RunningMan: As fas as VDSL goes, mjb's correct - generally speaking 16dB isn't going to cut it for VDSL, but if you do flag up as being inside a VDSL area, it may pay to contact an ISP for a qualifying check just to see.

+1. Get a pre-qual done to check; from personal experience I'd recommend snap, though I believe unleash are also very good (business provider but they will sign up residential in some cases I understand)

EDIT: BTW, half bridging is a good option IMO. I previously had good success running an RTA1320 half bridging to router - they can be had on trademe for ~$5, fairly easy to setup and you obviously already have a router, so it'd be a cheap option to play with if you're having issues with the AM300 or just wanted to have a play (though I believe the AM300 works well for half bridging too) Hmm. though I don't see any on trademe now... maybe the old supplies have dried up.

Thanks, i'll check out Snap and their plans and see if it even works for me.

Talkiet

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#713941 8-Nov-2012 09:06

virtuadude: [snip] Is there any kind of attack or port scan or something that may have occurred to cause this, or was it all just a fluke because it's 4+yrs old and that power supply thing?

I don't know what it was, but it wasn't a power supply corrupting a single parameter. Very unlikely to have been a result of an external attack either.

Chasing what happened just seems impossible in this case sorry - focus on the fact it now works :-)

Cheers - N

Please note all comments are from my own brain and don't necessarily represent the position or opinions of my employer, previous employers, colleagues, friends or pets.

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