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MUM Europe 2020

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by ironman820
Fri Nov 22, 2019 8:45 pm
Forum: Forwarding Protocols
Topic: ospf filter public nets [SOLVED]
Replies: 2
Views: 426

Re: ospf filter public nets [SOLVED]

You can tweak the filter you made a little and get it to work: /routing filter add action=accept chain=ospf-out prefix=10.0.0.0/8 protocol=ospf prefix-length=8-32 /routing filter add action=accept chain=ospf-out prefix=192.168.0.0/16 protocol=ospf prefix-length=16-32 /routing filter add action=accep...
by ironman820
Fri Nov 22, 2019 8:27 pm
Forum: Forwarding Protocols
Topic: OSPF - Routing 2 gateways
Replies: 1
Views: 271

Re: OSPF - Routing 2 gateways

OSPF cannot distinguish subnets like that. Starting an OSPF session over the links will balance traffic equally between them. If they are majorly dissimilar, ie: a 500 Mb/s link and a 1 Gb/s link; you can use vLANs to make them equal. IP Architechs calls this method "transit fabric" and has a good w...
by ironman820
Thu Nov 21, 2019 6:45 pm
Forum: Forwarding Protocols
Topic: BGP default route priority with failover issue
Replies: 0
Views: 161

BGP default route priority with failover issue

We are implimenting eBGP on our routers across our network and ran into an issue today. Our routers are set up as follows in the diagram with the black routes showing outbound through the black lines following the arrows to the internet and the blue lines as backups (mostly to handle bandwidth limit...
by ironman820
Thu Nov 21, 2019 5:27 pm
Forum: Forwarding Protocols
Topic: MPLS, BGP and OSPF design for wisp
Replies: 28
Views: 6492

Re: MPLS, BGP and OSPF design for wisp

Just a small note on the 4011's. If you are planning on using the 10Gb SFP+ port, they only support active fiber connections so passive (copper) patch cables are not supported and in our case didn't pass full and or any traffic. We are using CCR1009 routers for our sites connected into switches if w...
by ironman820
Tue Jul 30, 2019 5:58 pm
Forum: Forwarding Protocols
Topic: BGP Multihop on OSPF failover scenario
Replies: 2
Views: 700

Re: BGP Multihop on OSPF failover scenario

Is there any BGP/OSPF Wizardry that would fix this instead of just moving it to the routing IPs to mitigate this issue on these sites?
by ironman820
Fri Jun 14, 2019 6:56 pm
Forum: Forwarding Protocols
Topic: BGP Multihoming
Replies: 10
Views: 3579

Re: BGP Multihoming

If you want to do an upload load-balancing scenario, you'll need two full routing tables or a default route / partial-route table at your edge borders; also an important advice if you want to deploy this scenario (do not use the rule drop invalid-tcp-connections at the forward/input firewall rule)....
by ironman820
Thu Jun 13, 2019 9:02 pm
Forum: Forwarding Protocols
Topic: BGP Multihop on OSPF failover scenario
Replies: 2
Views: 700

BGP Multihop on OSPF failover scenario

I am trying a lab setup to mimic some of the routers we have in the field. We like the idea of using eBGP on top of OSPF to get ECMP across our links and still be able to send traffic the direction we want using weights and local pref. The problem I'm looking at is based on these 4 routers: netmap.J...
by ironman820
Mon Apr 08, 2019 10:26 pm
Forum: Virtualization
Topic: CHR TCP Bandwidth Test Unsupported
Replies: 1
Views: 961

CHR TCP Bandwidth Test Unsupported

We recently installed a server running ESXi and CHR (6.44.1) with a P10 license. When we try to initiate a TCP bandwidth test from another router to the CHR, it reports back "test unsupported". Following a suggestion posted on another forum, I tried adjusting the connection count to 1. After the cha...
by ironman820
Tue May 30, 2017 7:35 pm
Forum: Forwarding Protocols
Topic: MikroTik and MPLS
Replies: 2
Views: 745

Re: MikroTik and MPLS

Is it possible to achieve something similar to ECMP with MPLS using a second IGP overlay with TE?

For instance:
OSPF with ECMP base -> MPLS LDP -> MPLS TE -> Secondary OSPF/BGP Instance utilizing the TE interfaces?
by ironman820
Mon Sep 12, 2016 7:03 pm
Forum: Forwarding Protocols
Topic: MPLS with ECMP options
Replies: 1
Views: 895

MPLS with ECMP options

We have a two POPs that we are focusing on in our network. They are connected with both a 1G fiber transport and two 236Mbps wireless backhauls. We are using ECMP in OSPF to achieve a sort of bandwidth sharing with them, but would like to enable MPLS across our network. With this being said, we woul...
by ironman820
Thu Sep 08, 2016 6:47 pm
Forum: Forwarding Protocols
Topic: Influence a specific network in OSPF
Replies: 1
Views: 435

Influence a specific network in OSPF

We have a router that is a hub for several sites before being passed off to our different uplinks with different costs. We would like to cost a route from a specific site (1 network) to go to a "higher cost" router. Is this possible with Mikrotik OSPF? My colleague remembers being able to do this in...
by ironman820
Fri Jul 22, 2016 12:29 pm
Forum: Forwarding Protocols
Topic: OSPF not broadcasting specific connected route
Replies: 1
Views: 1742

OSPF not broadcasting specific connected route

My company just installed a PowerRouter v4 ( http://www.linktechs.net/productcart/pc/viewPrd.asp?idproduct=2046 ) to replace 4 CCR routers. It is functioning properly except it is not broadcasting a route over OSPF.  This router is an edge router, so we have our main IPv4 blocks null-routed by givin...
by ironman820
Wed Jun 22, 2016 9:48 pm
Forum: General
Topic: Correct way of protecting from SYN ?
Replies: 8
Views: 1298

Re: Correct way of protecting from SYN ?

That would be the route I would take.
by ironman820
Wed Jun 22, 2016 7:25 pm
Forum: General
Topic: Correct way of protecting from SYN ?
Replies: 8
Views: 1298

Re: Correct way of protecting from SYN ?

So the rule is correct ? Did you see it full ? The rule appears to be correct, but Winbox does not show everything on the line display, if you want to post the output of those lines after running the code I posted, I can say that they are correct. The other thing I'm seeing is since you are using P...
by ironman820
Wed Jun 22, 2016 6:54 pm
Forum: General
Topic: Correct way of protecting from SYN ?
Replies: 8
Views: 1298

Re: Correct way of protecting from SYN ?

If concerned about syn flooding, those rules should be on any router with a public IP address. With one huge recommendation, set up a test router with your PPPoE setup and make sure the rules don't block any PPPoE traffic they're not supposed to (I'm not familiar with PPPoE, but I have enabled rules...
by ironman820
Wed Jun 22, 2016 6:38 pm
Forum: General
Topic: How do I setup router for 5 fixed IP
Replies: 14
Views: 1841

Re: How do I setup router for 5 fixed IP

It depends on the current setup/your needs... If you are running NAT between your servers and the "outside world," you will need to put the public IPs on an external facing interface and then port forward the required ports directly to your servers. The best way is finding the individual ports your ...
by ironman820
Wed Jun 22, 2016 6:15 pm
Forum: General
Topic: Prioritizing traffic without setting max throughput
Replies: 2
Views: 623

Prioritizing traffic without setting max throughput

All of the routing on our network is done with Mikrotiks (RB1100AHx2 and CCR mostly). I am trying to implement VoIP prioritization without having to set reservations on speeds. Links between the routers range from 50Mb/s to 2Gb/s (aggregate) and setting a speed could cause problems if a main link go...