- Public - talk.mikrotik.com.au

Strange PPPOE Problem
by Paul Julian 16 Aug '17

16 Aug '17

Morning all, we have identified a bit of a strange issue and I was hoping that somebody might have come across it before and have some suggestions. We run a number of sites around the place which have a fibre backhaul from our DC to the site, then a router and DSLAM at the site which supplies customers with Ethernet services. Pretty much all sites are configured in an almost identical way. Yesterday we did a new install for a client at a site and noticed that the upload speed was slow compared to what it should be, around 9Mbit/s but fluctuating a bit. When he used the Mikrotik Bandwidth test utility and tested to the local LNS router performance was OK, however when using that app to test to a router in our DC the upload problem appeared still. The CPE was a TPLink VR600 Router running PPPOE, a common unit that we use for these installs and normally a good router. Our tech decided to go to our equipment in the building and test directly plugged into the DSLAM, there was no change when testing to the DC router, when testing to local router it was OK. He then used the router on site which operates as the LNS running PPPOE server and is an RB1100AHx2 and connected directly to one of the spare Ethernet ports on that, configured a PPPOE server on it with the same details as the other server and the problem remained when testing to router at DC, but testing to local router was OK. He then removed the PPPOE component and just connected normally to the Ethernet port on the router with straight IP and bandwidth tests worked fine to the local router and the DC router. There seems to be something going on when coming from a PPPOE connection which terminates on that local router when you try uploading to something past the router, the issue never happens when uploading to the local router only outside of the network. At this particular site we have a couple of other locations which hang off it via wireless backhauls. If we test from the local router at each of these sites back to the DC router we have no issues, so it's definitely PPPOE related. We also have another Mikrotik router at the site which is an out of band router, when testing from this router using the same scenarios we don't have any issues. PPPOE or straight Ethernet works perfectly OK to the local router and DC router, so there is something different between using a MT router as the PPPOE client and other devices. So far we have used a Windows 10 PC, a Macbook and a TPLink router as a CPE, they all experienced the upload problems. We have tried disabling the MRRU setting on the PPPOE server instance, no difference. We have checked firewall rules and everything else on the router and just can't identify anything which could be causing the problem. We have tried disabling Fastpath also just in case. We just can't find anything which seems to indicate a problem. Currently the RB1100 is running ROS 6.37.5, it was upgraded to that bugfix version 107 days ago and we haven't noticed any issues until now. Any suggestions would be appreciated as we have many customers connecting to this router and whilst none have complained it's surely only a matter of time. Thanks Paul

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Fwd: CAPSMAN WAPAC WIFI Failure
by Jason Hecker (Up & Running Tech) 10 Aug '17

10 Aug '17

OK I really don't want to but I'll turn off local forwarding and client-client and try tunnelling. Are your CAPSMAN tunnels on the local broadcast domain or using an IP address? If the former it'd seem to me that tunnel frames could get dropped or lost if the CAPSMAN controller got overwhelmed. What device are you using for the controller? I am using an RB2011 which is fine just for managing the radio interfaces. On 10 August 2017 at 14:05, Andrew Thrift <andrew(a)networklabs.co.nz> wrote: > We have an install with around 230 wAP AC's on a single CAPSMAN, all > SSID's use tuneled datapath. > > The issues we have had are: > > - ARP replies disappearing when using a tunneled datapath (Clients get > a DHCP lease but are unreachable) This one still happens on 6.40.x > > - Irregular performance. Two laptops connected to the same AP on the > same SSID, one will only be able to do 4mbit, the other will do a few > hundred. Both have Intel 802.11ac wireless cards. > > - Prior to 6.40rc2 we had issues with mainly Apple iPhones and Samsung > Galaxy J5's where they would be connected but would be unreachable. > Dropping them off from Capsman, or restarting wireless fixed them. > This seems to be fixed.. > > I am hoping Mikrotik can fix the ARP issue, and I am looking forward > to the promised band-steering features :) > > > > > On Thu, Aug 10, 2017 at 2:03 PM, Jason Hecker (Up & Running Tech) > <jason(a)upandrunningtech.com.au> wrote: > > Dave and Andrew, > > > > What issues have you had with WAPACs? > > > > Jason > > > > On 10 August 2017 at 08:39, Dave Browning <dave(a)sentrian.com.au> wrote: > > > >> I've had random issues with wAPAC's that rolling back to bug fix > resolved. > >> Can't name all the issues and not all issues resolved. But life is a bit > >> happier on bugfix. > >> > >> > On 9 Aug 2017, at 9:19 pm, Jason Hecker (Up & Running Tech) < > >> jason(a)upandrunningtech.com.au> wrote: > >> > > >> > Hi > >> > > >> > I am getting similar issues with 6.40 and 6.39.2. I wish Mikrotik > would > >> > mention such major changes in the change log. > >> > > >> > No (R)STP on any bridges, long guard interval, 1 hour group key > timeout > >> > don't seem to help any. > >> > > >> > Another school with Apple devices and a similar setup isn't having the > >> same > >> > issue but their devices tend to stay in the rooms. > >> > > >> > I'll try 6.40.1 tomorrow and turn off local forwarding and client to > >> client. > >> > > >> >> On 9 August 2017 at 19:58, Andrew Thrift <andrew(a)networklabs.co.nz> > >> wrote: > >> >> > >> >> Hi Jason, > >> >> > >> >> I have not seen that specific issue, but Mikrotik replaced the driver > >> >> for the wAP AC and hAP AC in RouterOS 6.40. It fixed a few issues we > >> >> were having on them. > >> >> > >> >> > >> >> It might be worth giving that a try.. > >> >> > >> >> > >> >> Regards, > >> >> > >> >> > >> >> > >> >> Andrew > >> >> > >> >> On Wed, Aug 9, 2017 at 8:14 PM, Jason Hecker (Up & Running Tech) > >> >> <jason(a)upandrunningtech.com.au> wrote: > >> >>> I have a school site with CAPSMAN on an RB2011 controlling 7 WAPACS. > >> >>> > >> >>> Local forwarding and client to client comms are used and the 5GHz > band > >> is > >> >>> pre-eminent as most of the devices are iPads and Macbook Airs. > >> >>> > >> >>> When the class of students with their iPads move from one WAPAC to > >> >> another > >> >>> Wifi connectivity seems to collapse on the adjacent WAPACS - no > devices > >> >> can > >> >>> communicate. Registration table shows they join but data doesn't > flow > >> >> very > >> >>> well if at all so DHCP fails etc. After 15-30 mins or a power > cycle it > >> >> all > >> >>> seems to settle down and things work again until the next > migration... > >> >>> > >> >>> When the WAPACS aren't working well on Wifi I can still connect in > from > >> >> the > >> >>> network side with Winbox and have no issues there. > >> >>> > >> >>> I've tried all sorts of things and am running out of options. > >> >>> > >> >>> Has anyone else seen this sort of thing? > >> >>> -- > >> >>> <https://www.upandrunningtech.com.au> > >> >>> _______________________________________________ > >> >>> Public mailing list > >> >>> Public(a)talk.mikrotik.com.au > >> >>> http://talk.mikrotik.com.au/mailman/listinfo/public_talk. > >> mikrotik.com.au > >> >> > >> > > >> > > >> > > >> > -- > >> > <https://www.upandrunningtech.com.au> > >> > _______________________________________________ > >> > Public mailing list > >> > Public(a)talk.mikrotik.com.au > >> > http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mik > rotik.com.au > >> > >> _______________________________________________ > >> Public mailing list > >> Public(a)talk.mikrotik.com.au > >> http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mik > rotik.com.au > >> > > > > > > > > -- > > <https://www.upandrunningtech.com.au> > > _______________________________________________ > > Public mailing list > > Public(a)talk.mikrotik.com.au > > http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au > -- <https://www.upandrunningtech.com.au> -- <https://www.upandrunningtech.com.au>

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CAPSMAN WAPAC WIFI Failure
by Jason Hecker (Up & Running Tech) 10 Aug '17

10 Aug '17

I have a school site with CAPSMAN on an RB2011 controlling 7 WAPACS. Local forwarding and client to client comms are used and the 5GHz band is pre-eminent as most of the devices are iPads and Macbook Airs. When the class of students with their iPads move from one WAPAC to another Wifi connectivity seems to collapse on the adjacent WAPACS - no devices can communicate. Registration table shows they join but data doesn't flow very well if at all so DHCP fails etc. After 15-30 mins or a power cycle it all seems to settle down and things work again until the next migration... When the WAPACS aren't working well on Wifi I can still connect in from the network side with Winbox and have no issues there. I've tried all sorts of things and am running out of options. Has anyone else seen this sort of thing? -- <https://www.upandrunningtech.com.au>

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xDSL SFPs
by Thomas Jackson 09 Aug '17

09 Aug '17

Good afternoon all, I remember some discussion earlier in the year about xDSL SFPs in AU. Did anyone manage to find one that worked? We've got a few sites coming up for refresh in the next month or so and it would be nice to move away from our standard deployment of an RB with a TPLink double-sided-taped together. All sites currently have ADSL2+ connections - and all are allegedly getting NBN FTTN or FTTdp in the next 12-18 months so it would be great to have something supporting both (although given that the office I'm sitting in at the moment had NBN fiber pulled in a couple of months ago which is still not ready for service, I'll believe that last part when I see it...). Thanks!

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802.11af/at switch
by Jason Hecker (Up & Running Tech) 26 Jul '17

26 Jul '17

I bought some Netgear GS105PE 802.3af/at in/out switches to power a existing WAPACs and hook nearby AppleTVs into ethernet from a HP V1910 (JE008A) switch way back at the rack. No good, in spite of firmware upgrades to the HP and Netgear switches the WAPAC would not be powered but has no issue being powered from the HP directly - same problems as per below where the Netgear didn't negotiate 802.3at: https://community.netgear.com/t5/Smart-Plus-Click-Switches/GS105PE-PoE-not-… I still don't actually know if the Netgear and WAPAC are compatible at all, the Netgear LED flicked on and off indicating PoE passthough wasn't working to the WAPAC. Apart from the HEX POE (overkill a bit) are there any other compact switches anyone can recommend that can be fed by 802.3at and pass on the power as well? I did find a hint below for the V1920 and I'll try it tomorrow on the V1910 if it's possible. http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=mmr_kc-0133889 Someone else made some changes to their V1910 and 802.3at connected but power would not pass through. https://community.netgear.com/t5/Smart-Plus-Click-Switches/Netgear-GS105PE-… I wasted enough time this evening trying to get it working. I say Mike, if the HEX POE Just Works and the new hopefully cheaper switches coming from Mikrotik (when?) Just Work you could be onto a winner! -- <https://www.upandrunningtech.com.au>

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Bridged Modem Options
by Paul Julian 15 Jul '17

15 Jul '17

Hi all, I know there was some talk a while back about modems in bridge mode for ADSL and there were a few suggestions. With the loss of the TPLink TD8817 now and no replacement in sight at this point we are searching for other options for a reliable low cost ADSL modem just for bridging. The TPLink was great because it was in bridge mode straight out of the box, this meant that you could just shop it to a customer with no need for configuration of any kind, it would be great to find another modem which was already in bridge mode as it's standard configuration. We have been looking at the Netgear DM200 which is an ADSL2/VDSL2 modem, it has promise but is triple the price of the TPLink. What are people's thoughts on the DM200 if you have used one ? are they worth the money as an ADSL modem ? I think they would be worth it for VDSL but I can't help but think there should be a good ADSL modem cheaper than that, even the Draytek modems are a lot more than the TPLink. I would be interested in peoples thoughts on this as I am now at zero stock levels and need new modems yesterday J Thanks Paul

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Binding snmp to an interface
by Craig Askings 07 Jul '17

07 Jul '17

Is there a way to bind snmp to a specific interface (say the loopback) so it will respond back with the same ip address it was polled on?

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CAPsMAN on 6.38.7 not working after update
by Paul Julian 05 Jul '17

05 Jul '17

Hi guys, I just upgraded an RB2011 we are using as a CAPsMAN router and the CAPs aren't coming back online. Everything was working OK previously but we just did the bugfix update to keep up to date, but now the CAPs aren't coming back. I have tried disabling and enabling everything on the CAPs and the CAPsMAN router but it's not seeing any radios. Any thoughts ? Regards Paul

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UPS Serial Cable
by Paul Julian 29 Jun '17

29 Jun '17

Hi guys, we have got some APC UPS's with the serial DB9 connections on them but need to connect them to Mikrotik RB2011 and RB1100AHx2 models. Does anybody have any suggestions on a cable to suit ? The problem is they are both setup to be the B end of the situation and not the MT setup to be the A end and the UPS as the B end. I was thinking of a gender bender but don't really want to do that if I don't have to..... Any thoughts would be appreciated. Thanks Paul

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VDSL modem in Mikrotik - PCI-E option?
by Philip Loenneker 26 Jun '17

26 Jun '17

Hi all, This is inspired by a post on AusNOG, which some of you may have seen. Draytek have a PCI-E card VDSL modem. I have limited knowledge of the hardware/driver level of Mikrotik routers, but does anyone here know if one of these might go in a Mikrotik product that has a PCI-E slot, eg the ones designed for 3G? Some background here: https://fbdragon.co.uk/static/2016/09/19/draytek-vigornic-132/ Might be an alternative to waiting on the SFP-based VDSL modems :) Regards, Philip Loenneker | Network Engineer | TasmaNet

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