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As far as I can tell Arista is 100% like Cisco in every way. I didn't even realize I was on an Arista Switch until I noticed the common command outputs were subtly different.
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Sep 11, 2015 03:30
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Reposting this from the home networking thread in case Cisco has a product that can do this: I have a lot of embedded devices (similar to Raspberry Pis) that come out of the factory with a fixed IP 192.168.1.1. I want to bulk configure them through scripting and plugging them into a 24 port switch instead of configuring them one by one because I have 100s of them. Is it possible for switches or other multi-port network equipment to do something like this? - Configure the switch to subnet 1 (ex 192.168.10.X) - Have my PC plugged into a fixed IP port 1 (ex 192.168.10.1) - Have the Pis plugged into fixed IP ports 2-24 (ex 192.168.10.2-24) - Somehow configure the switch to allow subnet 1 IPs (192.168.10.2-24) to reach the fixed IP 192.168.1.1 device that is connected to the port?? Or is there any other way to achieve "bulk configuring multiple devices with the same fixed IP"?
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Sep 11, 2015 04:29
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blugbee posted:Reposting this from the home networking thread in case Cisco has a product that can do this:
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Sep 11, 2015 05:13
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Powercrazy posted:As far as I can tell Arista is 100% like Cisco in every way. I didn't even realize I was on an Arista Switch until I noticed the common command outputs were subtly different. I seem to recall Cisco sued them for a bunch of things including the fact that something like half the commands in EOS were identical to IOS. No recent news about an outcome though.
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Sep 11, 2015 09:31
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BurgerQuest posted:I seem to recall Cisco sued them for a bunch of things including the fact that something like half the commands in EOS were identical to IOS. No recent news about an outcome though. It's not going in Cisco's favor thus far: http://www.crn.com/news/networking/300077471/cisco-lawsuit-against-arista-hits-setback-after-federal-judge-dismisses-two-claims.htm
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Sep 11, 2015 17:52
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Powercrazy posted:As far as I can tell Arista is 100% like Cisco in every way. I didn't even realize I was on an Arista Switch until I noticed the common command outputs were subtly different.
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Sep 11, 2015 19:08
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Is there a page that explains the old 'replace running-config with old-config' after 10 minutes in case I accidentally lock myself out of a router?
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Sep 11, 2015 20:05
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Bob Morales posted:Is there a page that explains the old 'replace running-config with old-config' after 10 minutes in case I accidentally lock myself out of a router? reload in 10
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Sep 11, 2015 20:32
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The evolution of `reload in X` is `config terminal revert timer X`. Requires config archiving enabled which has been available for quite a while. (They're both still lovely compared to Junos `config confirmed X`)
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Sep 12, 2015 01:21
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Yeah reload in is great when you forget to reload cancel. But if you saved then... it's not all that bad. Depends what you are doing, I guess. We are running rancid so the big city boys don't do archiving or cfg management through other tools, which, in this day and age is a bit dumb. There are better ways to manage config changes across the network than expect and perl. The configuration archiver could be a real lifesaver over hosing around with RANCID if you're doing it to local flash or USB, but if you've a failure it won't help there obviously.
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Sep 12, 2015 02:42
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Centralized config management is really necessary when you scale up enough. Rancid has the benefit of working fairly well, having a decent community and it's cost is attractive. Once you have a solid central solution, there's little issue with not having local backups/archives. Also, I've seen really annoying bugs related to the IOS archive features (or maybe that's just because 7600s) and you have things like consistent writes potentially degrading flash. edit: On the other hand, I really like JunOS configuration management, commit/rollback etc., so there's that. The IOS XR implementation didn't prove to match up, sadly, but it's at least better than IOS in a lot of areas. rattrap fucked around with this message at 07:53 on Sep 12, 2015 |
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Sep 12, 2015 07:42
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Partycat posted:There are better ways to manage config changes across the network than expect and perl. The configuration archiver could be a real lifesaver over hosing around with RANCID if you're doing it to local flash or USB, but if you've a failure it won't help there obviously.
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Sep 12, 2015 15:28
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Dissing it because it uses expect scripts seems quite silly. Yes expect scripts are touchy and a bit of a mess, but you really don't have to touch any of that stuff unless your device has some type of bug. In no way should you rely on on-device backups, that's borderline useless. RANCID + hourly diffs (ymmv) + a web CVS/SVN/whatever browser ftw. It's fairly trivial to push configs using it with a little wrapper script. code:Someone installed/purchased Solarwinds NCM at our org and I find it useless- things that it seems like it should do (report devices with serial numbers across platforms) simply don't work, just grepping in your rancid dir is easier for a quick method. Also a lot of NMS's have built in scripts for rancid- Obserivum for example just has an included script that spits out a RANCID config based on what you have in it and you just never have to do anything at all.
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Sep 12, 2015 16:15
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I have a Cisco ASA 5505. I just replaced the network card in my office's server. The server is the DNS and DHCP server. I think the new network card broke the DHCP somehow, because everything was working fine last night when I left, but this morning nothing will connect aside from the server. Additionally, computers can connect via VPN without a problem, and if I manually configure the connection on a client computer, it works fine, which is what makes me think it's DHCP. Is there someplace in the ASA configuration where it would be pointing to the DHCP server via MAC address instead of IP? Or am I on an entirely wrong track, here?
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Sep 12, 2015 19:51
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Are you sure the Windows (I assume) DHCP server is bound to the new adapter? You might also be performing DHCP snooping, so look at that.
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Sep 12, 2015 19:57
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Thanks Ants posted:Are you sure the Windows (I assume) DHCP server is bound to the new adapter? Windows server 2010, yeah, sorry, should have mentioned that.
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Sep 12, 2015 20:06
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Thanatosian posted:Windows server 2010 This doesn't exist  2012?
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Sep 12, 2015 20:31
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Windows Server 2008 R2, Jesus I'm retarded this morning. It looks like the bindings thing is probably the issue; currently blank (in spite of the fact that it's set up with a static IP), and I'm Googling how to fix it.
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Sep 12, 2015 20:44
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Removed a device that had the same IP (it was disabled, but still), and restarted the server, and everything appears to be working now, IP is showing up in the bindings and everything. Not sure if it was the IP, the restart, or both. Thanks for the help, though!
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Sep 12, 2015 20:56
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Thanatosian posted:Removed a device that had the same IP (it was disabled, but still), and restarted the server, and everything appears to be working now, IP is showing up in the bindings and everything. Not sure if it was the IP, the restart, or both. Thanks for the help, though! I would assume with the binding on the old nic, it wouldn't bind with the new one.
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Sep 13, 2015 00:23
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Docjowles posted:This doesn't exist Actually I think there is a multi-point server 2010, also 2011 and 2012 
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Sep 13, 2015 03:05
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Moey posted:I would assume with the binding on the old nic, it wouldn't bind with the new one. And in my defense, it did work fine until the DHCP leases started expiring.
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Sep 13, 2015 11:40
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Can I ask a packet tracer question here? I'm trying to do inter-vlan routing using an L3 Switch but I cant find anything that explains how to set routes between vlans. If that isn't possible then I guess I am misunderstanding the task, and even the basic concepts.  e: Is there a way to minimise the code for sh run in the forum post so that i dont post several screens worth of information? TheMostFrench fucked around with this message at 13:03 on Sep 16, 2015 |
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Sep 16, 2015 12:52
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Conf t, IP routing? Also on the switch you are routing on, does each vlan have an IP address assigned?
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Sep 16, 2015 13:17
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Yeah its just go onto your two L3 switches and type: en conf t ip routing (enables layer 3 routing on a switch) interface vlan 10 (where you'd type "vlan 20", etc you are configuring a L2 thing. When you type "interface vlan 20", you're configuring a logical layer 3 interface. For routing to work it has to know the subnets of each vlan which is what you define below) ip address 1.1.1.1 255.255.255.0 int vlan 20 ip address 2.1.1.1 255.255.255.0 etc... Ahdinko fucked around with this message at 13:52 on Sep 16, 2015 |
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Sep 16, 2015 13:49
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You will also need to add a default route pointing at your router IP/virtual IP if you're running HSRP or whatever. And update your DHCP pools to use this address for the gateway.
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Sep 17, 2015 00:26
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TheMostFrench posted:Can I ask a packet tracer question here? I'm trying to do inter-vlan routing using an L3 Switch but I cant find anything that explains how to set routes between vlans. If that isn't possible then I guess I am misunderstanding the task, and even the basic concepts. It's pretty easy, you just tell your routing protocol all of the vlan subnets that each device has access to.  My pkt file has quite a bit going on so just pay attention to the left most wing of clients and the HQ FLOOR1 mlsw. Each of the numbers beside a computer represents a vlan being serviced there. In my case I am using a default gateway of 10.192.x.254. quote:en For floor1-sw1 I have the access ports set as interface FastEthernet0/1 switchport access vlan 106 switchport voice vlan 107 spanning-tree portfast spanning-tree guard root And I have the floor1-mlsw default gateway's config resembling this long pastebin. Don't worry about the standby IPs, just know that the default gateway for every vlan in the left most pod terminates to floor1-mlsw You can see that eigrp has a network statement for all the vlans that this l3 switch is serving PLUS the physical interfaces that lead deeper into the network and I have enabled routing for the switch. The helper addresses just forward DHCP requests off to my DHCP server that is in a different subnet, because remember: broadcasts do not leave your local l2 lan. It is important to note that because f0/24 is handling all traffic for multiple vlans you MUST set it to be a trunk port. http://pastebin.com/8VWq4cp3 router eigrp 1 network 10.192.255.0 0.0.0.3 network 10.192.255.24 0.0.0.3 network 10.192.23.0 0.0.0.255 network 10.192.0.0 0.0.7.255 network 10.192.25.0 0.0.0.255 network 10.192.26.0 0.0.0.255 network 10.192.27.0 0.0.0.255 network 10.192.28.0 0.0.0.255 network 10.192.29.0 0.0.0.255 network 10.192.30.0 0.0.0.255 network 10.192.31.0 0.0.0.255 no auto-summary If you need more explanation just ask.
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Sep 17, 2015 01:10
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without giving a whole lesson on poo poo, I hope I can encourage you by saying the hardest step in network is moving from loving newbie that knows jack poo poo to just being a newbie. Once you get over that hump, it's just plain old incremental learning. Good luck.
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Sep 17, 2015 03:10
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Thanks for the explanations. I forgot ip routing even though i was 'so sure' i put it on 
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Sep 17, 2015 10:42
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adorai posted:without giving a whole lesson on poo poo, I hope I can encourage you by saying the hardest step in network is moving from loving newbie that knows jack poo poo to just being a newbie. Once you get over that hump, it's just plain old incremental learning. Good luck. This is one of the most useful things I've ever read on this forum. Trying to become one of my big MSP's Cisco guys and CCNA is tough 
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Sep 17, 2015 11:11
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The more I learn about networking, the more I realize that I know nothing about it.
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Sep 17, 2015 13:33
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psydude posted:The more I learn about networking, the more I realize that I know nothing about it. This. Networking is an endless pit of learning, just have to keep digging. Throwing out a plug for Network Warrior. Great read. http://www.amazon.com/Network-Warrior-Gary-A-Donahue/dp/1449387861
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Sep 17, 2015 14:55
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Seconding Network Warrior. Even for an experienced network administrator it's a good read.
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Sep 17, 2015 16:08
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psydude posted:The more I learn about networking, the more I realize that I know nothing about it. Truth. Though I just shifted my career to IT security and the same still applies so maybe it's universal. Who knows.
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Sep 17, 2015 20:08
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I feel like past a certain point in your career ninety percent of success is based on how well you can lie.
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Sep 17, 2015 22:24
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Martytoof posted:Truth. Four stages of competence
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Sep 18, 2015 00:53
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They forgot the "delusional competence" which is usually the third step, where people have learned a little and think they know it all.
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Sep 18, 2015 10:20
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Collateral Damage posted:They forgot the "delusional competence" which is usually the third step, where people have learned a little and think they know it all. Sometimes, this stage lasts forever.
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Sep 21, 2015 18:02
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If we're going to talk about competence, it'd be a shame to miss this: http://www.daedtech.com/how-developers-stop-learning-rise-of-the-expert-beginner
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Sep 22, 2015 03:40
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Where the hell does one get IOS software for 6800IA switches? Is it included in the 6880 images?
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Sep 22, 2015 21:14
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