Category: Networking
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Mikrotik Firewall Raw Feature Test
While talking about doing a podcast on DoS protection it was brought to my attention that Mikrotik added a new firewall feature (Raw). Raw is a mechanism to less granularly, but more efficiently drop traffic in the router. Raw is configured similarly to a standard firewall rule, but it will drop traffic BEFORE it has…
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Find The Ifindex On A Cisco Router
If you need to find the SNMP Ifindex of your Cisco router you can simply enter : !change the interface name for your desired entry. router# show snmp mib ifmib ifindex TenGigabitEthernet1/1 Interface = TenGigabitEthernet1/1, Ifindex = 1 For an IOS-XR router it is: show snmp int Te0/0/0/0.1651 ifindex
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Cisco DMVPN With DHCP Failure
With Cisco’s DMVPN it should be a snap to pickup your router and move it to a new site…at least it was previously for my client. The difference was, they were statically configured before, and now they are DHCP. Cisco Dynamic Multipoint VPN is a system where by you plug in, and remote sites will…
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Mikrotik Newsletter 68 – Andrew/Greg Chat
Andrew Cox and Greg Sowell dish about some of the new stuffs in the 68th newsletter: mANT 15, 19 sector antennas CCR1072 hEX PoE Lite mANT 30 45° horn tilt LNS supprot DNS on tunnels and such PoE manager US MUM GPON This was impromptu conversation…taking it back old school. Grab the MP3 here if…
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Mikrotik Changelog 6.33 … A Novel
What’s new in 6.33 (2015-Nov-06 12:49): *) dns – initial fix for situation when dynamic dns servers could disappear; *) winbox – dropped support for winbox v3.0beta and v3.0rc (use winbox v3.0); *) dhcpv6 – various improvement and fixes for dhcp-pd client and ippool6; *) defconf – fixed rare situation where configuration was only partially…
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Cisco CMP – Out Of Band Built Into Your Router
Today I had a customer ask us for assistance in configuring their CMP on their Cisco Sup2T for a 6500 chassis. To which I promptly googled it hehe. A CMP is the Connectivity Management Processor, AKA out of band manager. This is similar to IPMI in the server world. It lives on inside the supervisor,…
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Using BGP For QoS – MUM 2015
This presentation is an example of using BGP for your QoS policies. The slides are available here: The configs are available here: The video is here: You can use route filters to mark incoming BGP routes. In this case we use route comments. This allows you to also manually add your own entries in with…