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TheBrothersWISP 80 – Favorite Things 2018, SIP Tshooting, Centurylink Outage

Published on January 6, 2019, by in Networking.



This week Greg, Mike, and Dave do the first cast of the new year…time to start out on the wrong foot 😉

This cast we talk about:
UBNT vs. Cambium Lawsuit Update
Centurylink outage
Mikrotik NAT (as it pertains to SIP and RTP) Broken
Greg fav things: hAP AC^2, pickleball, your mom’s house podcast/Harmontown podcast, little brothers wisp slack
Mike’s Fav things
Daves My son, Ham Radio
completely useless phrases that sound inspirational
Mikrotik bug fix for CRS3
Hammett would look amazing with a mow-hawk
PoE power cycle ping

*Slack Updates*
In Mikrotik, flush connection table when troubleshooting and making changes

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TheBrothersWISP Top 5 Tips Tommy C and Greg

Published on January 4, 2019, by in Networking.



This week Greg and Tommy C(TCent to his fam) talk about their top 5 tips.

The Tips:

Tommy C
1. Have a test bench: I read somewhere “everyone has a test network, not everyone has a production network” I have been able to pull off so many changes/upgrades to our network just because I was able to show how the system would work before implementing it. I also have a couple friends who my company serves. They know they are on testing equipment and enjoy buying me beers when I come over to try out “some new hardware”. We are now setting up a test tower that will just be
2. Radios + antennas are just like old flashlights: Remember those old Mag Lights and the light pattern they would make? Dish antennas are the exact same way. If you think you have a good alignment, keep moving the antenna another 20 degrees and see what happens.
3. Don’t break EIRP: It’s not worth it, get a bigger antenna or fail the customer. Noise only goes up and you can only make so much more noise. (Which everyone else has to hear) Set a minimum signal level and stick to it, be willing to fail a new Install if you can’t get a good signal. You will thank yourself when you are able to get more customers on an AP and push more bandwidth to existing customers. (Far fewer phone calls as well.)
4. Wireless is not “Set and forget”, Have some sort of monitoring as well as record keeping for signal levels and bandwidth. Call people if they have a rapid drop in signal or their signal has dropped a lot over several months. People will pay more money for longer if you are the one telling them “your internet sux, we want to fix it”.
5. If you climb towers, have a good safety guy give you classes, if you have employees make them take safety classes and enforce safety policies. If someone routinely breaks safety rules get rid of them, eventually they will cost you a lot of money. Someone called OSHA to report a bunch of false safety violations against us while we were putting up a tower in a competitors area. Because we had our safety guy on site while we were setting up the tower OSHA decided we were not the ones making trouble.

Greg
Keep a spare on the shelf Keep a spare of everything you have. Great for emergencies as well as labbing scenarios.
Keep backups This will save your life one day.
Diagram current and future builds This is for you and every engineer/consultant you employ.
Don’t be affraid to ask for help Being on an island is lonely, especially when you don’t have a volley ball.
Don’t be affraid to help others Your knowledge is a gift that should be given, not horded away like the one ring.

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TheBrothersWISP 79 – Ubiquiti Financing, MUM Austin, Slack Catchup



This week Greg and Mike do an after Thanksgiving update.

This cast we talk about:
Ubiquiti 0% financing
Mikrotik newsletter 85
MUM USA in Austin April 4th-5th
Mikrotik BGP Tests?
Happy Birthday to Miller
IBM picks up RedHat
Airspan acquires Mimosa

*Slack Updates*
Jeff – Huawei US distribution raised prices and documentation is behind paywall.
Discussion of running fiber along with copper in MDUs
10Gb to the desk for standard office users
Mikrotik btest results and observations
Invalid packets – runts(smaller than 64 bytes), packets not in connection table, session closes and packets show up
Tomas – modern version of ROS do MSS adjustment directly in the PPP driver to allow a packet to stay in the fast path
CCR terminating a couple thousand PPPoE clients choking when 20-30 drop and reestablish at once
Packetloss on dispirate switched network connected by Mikrotik EoIP tunnel
Mike is looking for a whitebox switch that can take a massive amount of ACLs
What do you use for T1s – Greg uses Cisco 2621s with a T1 card(about $30 total)
Tunnels from a Mikrotik exit the “Output” chain, thus routing marks must be made in the output chain, not prerouting

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TheBrothersWISP 78 – MTK Grey Hat, RF E Asymmetric Horns, Supermicro HW Hack?

Published on October 28, 2018, by in Mikrotik, Networking.



This week Greg, Andrew Cox, Andrew Thrift, Dave, and Nick Arellano choot the chit.

This cast we talk about:
Generate ACLs for country based filtering
Route filter for North America
Mikrotik grey hat hacker asking for donations.
New logo challenge…what do you guys like?
Don’t use RB1100 ports 11-13; on pcie interface which causes errors and slowness
Ken had to downgrade to 6.40 to get his LTE card working
RF Elements asymmetric horns
RB4011 vs CCR1009 BGP load time
Optimizing throughput for CCR1072 – bgp / route filtering / queues / firewall rules – accept known first etc
Bloomberg Supermicro report rebuttal
Thoughts on Cisco IOS-XR “first impressions”
Play AM radio using your web browser
Libssh authentication bypass on Cisco
Protecting customers from themselves: what do you block?
IPv6 channel is active – Did the internet birth trolls?

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TheBrothersWISP 77 – Cambium Cat5, 4011 BGP, All-In-One or Nah?



This week Greg, Dave, and Mike (Déjà vu) yarn for a bit; stay a while, and listen.

This cast we talk about:
IPv6 follow-up: enable ipv6 in MTK, then issue “/system default-configuration print” to see default ipv6 firewall rules
Steve’s IPv4/IPv6 Network Aggregator
Cambium is going to sell outdoor cat5
Greg’s USB boost converter 5V to 24V for PoE
RB4011\RB1100AHx4 BGP?
Highlights from Mikrotik slack:
Check CPUs in system resources cpu to see utilizaton on all cores.
Jeremy says to check if scripts are still running head to system scripts jobs.
Ole says 1036 takes 45 seconds to reboot and start passing traffic.
Thrift says Tilera MDE (Multicore Development Environment) only supports up to the 3.3 kernel, so they are stuck there moving forward.
Jason Wilson shared that the Russian MUM has opened up an iPhone app.
Dan discovered that once customers connected to a remote network with the Cisco anyconnect client they pulled a new DNS server and it caused issues.
VoIP Phone IPSec
Tomas’ Thoughts: At what point does having services separated out bring benifit vs the all-in-one solution?

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TheBrothersWISP 76 – New Mikrotik Kit, UBNT CPE Mystery, S3 Buckets vs Dropbox



This week Greg, Dave, and Mike (Déjà vu) yarn for a bit; stay a while, and listen.

This cast we talk about:
Mikrotik renames release channels
DHCP Snooping
Ubiquiti CPEs with public IPs stop responding to admin access, but pass traffic…why?
Tool to aggregate IPv4/IPv6 routes – thanks Steve!
Mikrotik newsletter 84
RB4011
RB4011 Wireless
Mikrotik 60 GHz SXT
BaseBox 6
WISPApalooza
Amazon S3 bucket vs dropbox or box

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TheBrothersWISP 75 – VoIP Acquisitions, Unifi XG, A Hashing Story



This week Greg, Dave, and Mike do a quick cast to kick off the Labor day weekend…it sure feels like working trying to listen to these things, though…

This cast we talk about:
SECURE YOUR ROUTERS!!!!!!!!!
Ignite net new firmware
TBW IPv6 podcast
Nicks notes on IPv6
All of the pickles
Sangoma acquires Digium Inc
Unifi super high density deployment radios – Arena / Conference Hall
Tracking down TCP resets, a hashing story
Tower training over at ISPSupplies
Issabel Asterisk GUI Dave said is horrible…so why am I linking it?

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TheBrothersWISP – Why Should I Use IPv6?

Published on August 30, 2018, by in Mikrotik, Networking.

Nick, John, Miller, Tommy, Mike, and Greg talk about the various reasons to do IPv6 or not, some of the hurdles to implement, and use cases.

We also discuss:
Business case for IPv6
Islands of knowledge
Consumer vs Enterprise
Dual stacking
P2P addressing
Subnet sizes
Subnet sizes to deliver to customers
Prefix delegation via DHCP
AAAA and IPv6 DNS
Hotspots and IPv6
SLAAC
Various address types
Neighbor tables
ICMP in IPv6

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TheBrothersWISP 74 – Protect your tik, Ciena Metro E, Unresponsive Customers

Published on August 19, 2018, by in Mikrotik, Networking.



This week Greg, Dave, Mike, Miller and Andrew Cox totally bro out and talk about manly things…and at the end Greg feels all the feels, so use caution if that’s not your thing 😉

This cast we talk about:
Dragonwav’s annoucement
Bare minimum to protect your Mikrotik
Greg Trains on Ciena Metro E Kit
Ciena 3930
Ciena 8700
Monitoring customers with overlapping subnets?
Working with unresponsive customers

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TheBrothersWISP 73 – Mikrotik 4011, security, MTU, cheap fiber tools



This week Greg, Dave, and Mike trade our favorite recipes.

This cast we talk about:
Mikrotik 4011 first look
Mikrotik 4011 second look
Wireless Wire MTU Issue – regular wireless l2mtu of 1600
Mikrotik selling CWDM muxes and optics
Mikrotik coinhive crytpojacking
More botnets taking advantage of winbox holes up to version 6.42
Mikrotik has a security blog
Locating fiber in the field – VFL
ST to LC adapter for a VFL
Ubiquiti Fiber PoE – tranciever with passive PoE out (McAfee)

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