That's a good idea - find an IP only responsive on that network. I think DNS servers will respond to pings (but not DNS queries) off network. Test it with dig/ping. I can tell you if it works from my network if you share the IP.
Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 "The secret to creativity is knowing how to hide your sources." --- Albert Einstein On Tue, Dec 1, 2009 at 5:58 PM, Jerry Richardson <jrichard...@aircloud.com>wrote: > just ping the DSL provider's DNS server. > > -----Original Message----- > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > Behalf Of Data Technology > Sent: Tuesday, December 01, 2009 2:46 PM > To: WISPA General List > Subject: Re: [WISPA] suggestions for dual wan dhcp auto fail over > > Yes the dsl modem is handing out a dhcp address. I figure I will have > to ping way back upstream to check the connection vs just pinging the > dhcp modem. > I was thinking that if I just change the distance value to a higher > value then I could leave the interface up and nat should use the route > with the lowest distance value. (not tested yet) > Then I could ping with a source address of the dsl interface and it > should go out the dsl line even though the distance is set higher than > the backup. (not tested yet) > > Dennis Burgess wrote: > > There are other things to also keep in mind when dealing with DHCP, i.e. > > is your DHCP being handed out locally. sSo if you have a DSL line is > > the DSL modem handing this out? if so, then watching that connection is > > useless, you will have to do some policy based routing and checks to > > verify that it is up and bring it down if it is not up. > > > > ----------------------------------------------------------- > > Dennis Burgess, CCNA, A+, Mikrotik Certified Trainer > > WISPA Board Member - wispa.org > > Link Technologies, Inc -- Mikrotik & WISP Support Services > > WISPA Vendor Member > > Office: 314-735-0270 Website: http://www.linktechs.net > > LIVE On-Line Mikrotik Training > > Author of "Learn RouterOS" > > > > > > -----Original Message----- > > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > > Behalf Of Josh Luthman > > Sent: Tuesday, December 01, 2009 4:21 PM > > To: WISPA General List > > Subject: Re: [WISPA] suggestions for dual wan dhcp auto fail over > > > > Lucky you, glad you could have 3.x everywhere! > > > > I could be wrong as it may just be my experience, but the command line > > for > > custom things is necessary as the GUI doesn't show everything. I > > started > > with GUI and moved a lot to CLI as it seems easier/faster. Hopefully > > it's > > simply a personal preference! > > > > There are places like wireless where the GUI is almost required as the > > CLI > > is difficult to navigate and may not even have some values. > > > > Josh Luthman > > Office: 937-552-2340 > > Direct: 937-552-2343 > > 1100 Wayne St > > Suite 1337 > > Troy, OH 45373 > > > > "The secret to creativity is knowing how to hide your sources." > > --- Albert Einstein > > > > > > On Tue, Dec 1, 2009 at 5:17 PM, Data Technology <w...@dtisp.com> wrote: > > > > > >> Yeah, when I looked at the article you listed it clicked. I don't use > >> the command line except when I have to so I was a little off on the > >> command to change the distance setting. > >> > >> I have version 4.3 so that should not be a problem. > >> I've been using MT for several years but I have gotten past the 2.9.x. > >> I think oldest is 3.25. > >> > >> > >> Josh Luthman wrote: > >> > >>> First one is definitely not going to work. > >>> > >>> Second one is what you need =) > >>> > >>> Do keep in mind you need 3.11+. If you're new to Mikrotik there is > >>> > >> little > >> > >>> reason to be concerned, but some users such as myself still have > >>> > > 2.9.50 > > > >> or > >> > >>> 51 stuff! > >>> > >>> Josh Luthman > >>> Office: 937-552-2340 > >>> Direct: 937-552-2343 > >>> 1100 Wayne St > >>> Suite 1337 > >>> Troy, OH 45373 > >>> > >>> "The secret to creativity is knowing how to hide your sources." > >>> --- Albert Einstein > >>> > >>> > >>> On Tue, Dec 1, 2009 at 4:29 PM, Data Technology <w...@dtisp.com> > >>> > > wrote: > > > >>> > >>>> Josh, > >>>> That is what I was trying to do but I was trying to use "/ip route > >>>> > > set > > > >>>> ether1 distance=3" instead of "/ip dhcp-client set ether1 > >>>> default-route-distance=3". > >>>> > >>>> Thanks > >>>> LaRoy > >>>> > >>>> > >>>> Josh Luthman wrote: > >>>> > >>>> > >>>>> This might help you > >>>>> http://stfunoo.be/?p=268 > >>>>> > >>>>> I like using route distance since 3.11 DHCP can do it. > >>>>> > >>>>> It has worked very well for me. > >>>>> > >>>>> Josh Luthman > >>>>> Office: 937-552-2340 > >>>>> Direct: 937-552-2343 > >>>>> 1100 Wayne St > >>>>> Suite 1337 > >>>>> Troy, OH 45373 > >>>>> > >>>>> "The secret to creativity is knowing how to hide your sources." > >>>>> --- Albert Einstein > >>>>> > >>>>> > >>>>> On Tue, Dec 1, 2009 at 4:01 PM, Data Technology <w...@dtisp.com> > >>>>> > >> wrote: > >> > >>>>> > >>>>> > >>>>>> Sounds too easy :) I'll give it a try. > >>>>>> > >>>>>> Thanks > >>>>>> LaRoy > >>>>>> > >>>>>> e...@wisp-router.com wrote: > >>>>>> > >>>>>> > >>>>>> > >>>>>>> Just change the nat to use the other public ip since your > >>>>>>> > > already > > > >>>>>>> > >>>>>> masquerading just change that rule to src-nat and set the public > >>>>>> > > ip to > > > >>>>>> src-nat to. > >>>>>> > >>>>>> > >>>>>> > >>>>>>> /Eje > >>>>>>> ------Original Message------ > >>>>>>> From: Data Technology > >>>>>>> Sender: wireless-boun...@wispa.org > >>>>>>> To: WISPA General List > >>>>>>> ReplyTo: WISPA General List > >>>>>>> Subject: [WISPA] suggestions for dual wan dhcp auto fail over > >>>>>>> Sent: Dec 1, 2009 15:30 > >>>>>>> > >>>>>>> I am trying to configure an rb450 v4.3 to connect to 2 different > >>>>>>> providers with dhcp using 1 as the primary and the other as a > >>>>>>> > > backup. > > > >>>>>>> I would like it to switch over to the backup if the primary > >>>>>>> > > service > > > >> is > >> > >>>>>>> > >>>>>> down. > >>>>>> > >>>>>> > >>>>>> > >>>>>>> I want to nat local users to either service. > >>>>>>> > >>>>>>> I assume I will need to use netwatch to check the servcie > >>>>>>> > >> availability > >> > >>>>>>> so I can check all the way thru the providers service and not > >>>>>>> > > just > > > >> the > >> > >>>>>>> local physical connection. > >>>>>>> > >>>>>>> The question is what do I need to do when the primary goes down? > >>>>>>> I thought I could just change the distance on the route but I > >>>>>>> > > found > > > >> out > >> > >>>>>>> it will not let you change the distance if the default route is > >>>>>>> > > set > > > >> by > >> > >>>>>>> the dhcp-client. > >>>>>>> > >>>>>>> I have looked at some of the examples on the wiki but they all > >>>>>>> > > use > > > >>>>>>> static ip address and I am wanting to use dhcp. > >>>>>>> Anyone have any pointers? > >>>>>>> > >>>>>>> Thanks > >>>>>>> > >>>>>>> LaRoy McCann > >>>>>>> Data Technology > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> > > ------------------------------------------------------------------------ > > -------- > > > >>>>>>> WISPA Wants You! 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