Enjoying Saturday with Firepower Bugs Networking |
- Enjoying Saturday with Firepower Bugs
- Anyone else going through a agile re-org ?
- ITIL - Do any of you have it? What are your thoughts?
- Watch the DNSSEC Root KSK Ceremony today
- Don't know if this is the right place to ask. I was just wondering if there is any reason to install PuTTY on a Mac?
- Is there any RFC for GRE tunnel Keepalive?
- Ip route 0.0.0.0 0.0.0.0 0.0.0.0
- Change IP address on vlan
- Aruba Wifi
- Campus Network Architecture and Design Principles
| Enjoying Saturday with Firepower Bugs Posted: 15 Feb 2020 10:25 AM PST Well, I am currently enjoying my Saturday dealing with some Firepower bugs. Our firewalls have been pretty reliable for the most part until today. We hit a bug in VDB database version 331 that causes the SNORT process to crash on the firewalls. The real bummer about this is that when snort crashes, the firewalls stop passing traffic. This bug took out both firewalls in an HA pair simultaneously and took the site down. Not super great. Luckily we have an old trusty ASA in our other site so traffic failed over as expected. TAC is now having me update FMC to 6.4.0.8 immediately and then we are rolling back the VDB version to 330. So, if you run into Firepower issues today, maybe this post will help you :) [link] [comments]  |
| Anyone else going through a agile re-org ? Posted: 15 Feb 2020 01:28 PM PST My company is having our Infrastructure area go through a reorg to adopt agile / scrum / jira and so far it's felt like a train wreck. With the amount of fire fighting our area does and the amount of specialization (LAN, WAN, DNS, Packet brokering, Load Balancing, WAN Op) it seems like a pipe dream for us ALL to participate in sprints, do project work, fire fighting and also do cross training? This is nuts. Yes, it works for appdev but I don't see how this applies to infrastructure. Am I crazy here? Is this the future of infrastructure or is this going to fail? [link] [comments]  |
| ITIL - Do any of you have it? What are your thoughts? Posted: 15 Feb 2020 06:13 AM PST Just looking for opinions, I know having a certification is better than none. Just want to know how valuable it is. [link] [comments]  |
| Watch the DNSSEC Root KSK Ceremony today Posted: 15 Feb 2020 01:48 PM PST Signing the ZSK for 2020 Q2 and destroying HSM3 (West). [link] [comments]  |
| Posted: 15 Feb 2020 10:43 AM PST I've been doing a lot of research as to why people are installing it on their macs and in tutorials they never specify why they are showing how to install it on Mac. Mac OS comes with SSH and you are able to save connections and everything so I am just wondering what you guys might know that I am not seeing. [link] [comments]  |
| Is there any RFC for GRE tunnel Keepalive? Posted: 14 Feb 2020 10:43 PM PST I could not find the GRE keepalive related RFC on google. Is there any such thing? All I could find was this cisco support document. Is it Cisco's proprietary mechanism? Do other vendors implement the GRE keepalive mechanism similarly? Any help is appreciated. [link] [comments]  |
| Ip route 0.0.0.0 0.0.0.0 0.0.0.0 Posted: 15 Feb 2020 02:22 PM PST I get that a default route means if nothing more specific then route to address inputed in the ip route command. Can someone explain the logic behind this specific command? Ip route 0.0.0.0 0.0.0.00.0.0.0 My understanding is that any address will be routed to all interfaces. Im most likely wrong because im unable to ping across the network. https://imgur.com/a/qIcdbPt Topology for reference. Router 3 is an "isp" and im not allowed to use and routing protocols. [link] [comments]  |
| Posted: 15 Feb 2020 01:05 PM PST We currently using vlan 99 with ip address 10.xx.67.1-254 I am going to install new switches using vlan 99 with ip address 10.xx.68.1-254. Can this be done I can I can add this subnet and access both subnets remotely using standby ip? [link] [comments]  |
| Posted: 15 Feb 2020 06:08 AM PST Hi All, We have a Master Mobility Controller at one site and a Local Controller at another site configured in a HA pair running 6.5.4.12. 7240XM. We also have wired airplay servers that are discovered when screen mirroring from phones and laptops. It seems that the discovery of the airplay servers is instant with APs associated to the Local Controller. However with the Master we are getting instant discovery if we have below 700 users connected but anything above that we are getting 15-30secs delay in discovery. I need some expert advise from existing Aruba network engineers on what my next steps should be. We already have BC/MC on all the vlans. A reboot of the Master improved the speed but its slowing down again. There is no obvious signs the controller is overloaded. What steps should I take next ? Do I install another Local Controller to take load off the Master ? Do I upgrade existing version ? Do I have re-architect and go for AOS 8 ? Ideally need a solution asap without causing too much disruption. [link] [comments]  |
| Campus Network Architecture and Design Principles Posted: 14 Feb 2020 08:46 PM PST In the four Principles, what is the difference between Flexibility and Modularity? They both seem like the same thing to me. Or perhaps I should be asking: why are they separated into 2 different Principles? I tried Google but could not even come close to finding an answer. [link] [comments]  |
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