Community discussions

MikroTik App

Search found 10 matches

by matthew
Wed Jul 09, 2014 12:37 am
Forum: Forwarding Protocols
Topic: How to set config and keep bgp peer connection?
Replies: 2
Views: 908

Re: How to set config and keep bgp peer connection?

Hi phil, Setting the new filter via the command line doesn't seem to impact the peer's state (for me on v5.26 anyway). ~Matthew [admin@edge2] /routing bgp peer> print Flags: X - disabled, E - established # INSTANCE REMOTE-ADDRESS REMOTE-AS 0 E default 192.168.228.101 64515 1 E default 192.168.228.13...
by matthew
Fri Mar 14, 2014 12:15 am
Forum: Forwarding Protocols
Topic: Issue with gateways and BGP with 2 ISP's
Replies: 1
Views: 1070

Re: Issue with gateways and BGP with 2 ISP's

Hi David, You can probably pull this off using a prerouting firewall mangle rule with a separate routing mark for your /25 and /26. Assuming your AT&T networks are: 172.16.16.0/25 and 172.16.17.0/26, the AT&T gateway is 12.122.125.224, and your AT&T interface is 12.122.125.225... something like this...
by matthew
Thu Mar 13, 2014 11:54 pm
Forum: Forwarding Protocols
Topic: BGP is working - can't ping out
Replies: 5
Views: 2644

Re: BGP is working - can't ping out

In your MikroTik router, go into ip routes and do a search where your dst-address is 4.0.0.0/9 (your 4.2.2.2 test). If your "Gateway" (next hop) isn't your core router-- you need to enable "nexthop-choice=force-self" on your core router's peer configuration for your MikroTik. If your core router is ...
by matthew
Sat Feb 22, 2014 1:52 am
Forum: Forwarding Protocols
Topic: Mikrotik BGP Protocol configuration
Replies: 2
Views: 1661

Re: Mikrotik BGP Protocol configuration

Greetings, The cleanest way to accomplish this is using BGP Local Pref. You can set local pref using a routing filter on the way in from each ISP. (make your preferred connection have a local pref of 80, and your backup connection have a local pref of 70). I'm assuming you're only receiving a handfu...
by matthew
Sat Feb 22, 2014 1:23 am
Forum: Forwarding Protocols
Topic: Two BGP sessions, do not wish to re-announce
Replies: 2
Views: 1362

Re: Two BGP sessions, do not wish to re-announce

Greetings, Here's an example. Provided your ASN is 64585, your network is 198.18.0.0/15, and your ISP's ASN is 65534. Below is a (modified) copy of what I use for inbound/outbound IPv4 configuration for public upstreams. I should also note that I also don't re-distribute anything (static or other ro...
by matthew
Fri Jul 29, 2011 4:12 am
Forum: Forwarding Protocols
Topic: BGP w/ Cogent
Replies: 12
Views: 4555

Re: BGP w/ Cogent

I'll be turning up both full IPv4 and IPv6 sessions on an RB1100 with Cogent next week. If it goes well, I'll post the finished configs here for ya.
by matthew
Fri Jun 24, 2011 7:01 am
Forum: Forwarding Protocols
Topic: GRE tunnel from RB750 to VPS --- FAST connection, But
Replies: 8
Views: 3636

Re: GRE tunnel from RB750 to VPS --- FAST connection, But

I suspect if you adjusted the MTU/MSS on both sides of your PPTP you might have better luck with it. And you wouldn't have to fiddle with IPs on both sides...but just have your local side connect back to the VPS with the static IP. The default of 1460 doesn't take into account PPPoE overhead...so yo...
by matthew
Fri Jun 24, 2011 6:48 am
Forum: Forwarding Protocols
Topic: SIP via NAT
Replies: 4
Views: 5619

Re: SIP via NAT

Unfortunately, I have yet to see any kind of router-based SIP helper work 100% correctly. Unless it's actually acting as some kind of Proxy, rather than trying to modify the SIP packets on the fly. I would actually suggest: -Disable the SIP protocol in the firewall all together. -Let the SIP server ...
by matthew
Tue Jun 21, 2011 7:42 am
Forum: Forwarding Protocols
Topic: Memory Leak with BGP?
Replies: 31
Views: 9517

Re: Memory Leak with BGP?

I'd also be curious to see where we currently stand with other folks taking on at least 2 IPv4 + IPv6 routing tables on the current release (5.4). I was nearly ready to pull the trigger on a new pair of RouterOS devices for our BGP routers, but if memory's not being released during the course of nor...
by matthew
Sat Sep 22, 2007 12:51 am
Forum: RouterBOARD hardware
Topic: GPS NTP Stratum (6 vs. 2)
Replies: 22
Views: 7880

GPS NTP Stratum (6 vs. 2)

I am curious if anyone knows why when the time is set via GPS (using a serial connection), the stratum reported by the NTP server is 6. (I would presume if we're getting our time from a stratum 1 source such as GPS, it would be serving out stratum 2 time).