|
VR Cowboy posted:Does anyone know how to find software serial number on NCS? We're trying to transfer our maintenance agreements to smartnet but I'll be damned if I can find any of those serials on NCS, or what they even look like. Log on with SSH and do show udi.
|
# ? Jul 19, 2013 12:01 |
|
|
# ? May 29, 2024 04:38 |
|
ior posted:Log on with SSH and do show udi. Thanks! This was just what we needed
|
# ? Jul 19, 2013 20:35 |
|
VR Cowboy posted:Thanks! This was just what we needed You really should get that upgraded to Prime Infrastructure though. (1.4 is almost out, wait for that before you do a migration)
|
# ? Jul 19, 2013 21:19 |
|
Anyone run into a memory leak with 3560X running 15.0(2)SE2? Particularly due to Auth Manager, *Init* or *Dead* code:
|
# ? Jul 20, 2013 04:46 |
|
I just received some of my hardware for my CCNA lab, and my two 2950s came without any IOS image. After much googling, it seemed like xmodem was the only way to get an image on the switches - so I set the BAUD rate to 115200 on both the switch and my com port (which is a usb-to-serial adapter), and started the transfer. Well, it's going pretty slow - only about 211 Bytes/s - it should be going faster than that, right? Any ideas why it wouldn't?
|
# ? Jul 20, 2013 22:23 |
|
ior posted:You really should get that upgraded to Prime Infrastructure though. (1.4 is almost out, wait for that before you do a migration) That's one of our goals. Hopefully in the next year we'll have it in the door.
|
# ? Jul 20, 2013 22:34 |
|
Erkenntnis posted:I just received some of my hardware for my CCNA lab, and my two 2950s came without any IOS image. After much googling, it seemed like xmodem was the only way to get an image on the switches - so I set the BAUD rate to 115200 on both the switch and my com port (which is a usb-to-serial adapter), and started the transfer. Well, it's going pretty slow - only about 211 Bytes/s - it should be going faster than that, right? Any ideas why it wouldn't? Are you transferring in xmodem 1k mode?
|
# ? Jul 20, 2013 23:58 |
|
less than three posted:Are you transferring in xmodem 1k mode? Not sure. I ended up canceling the transfer and switched term emulators (from terma to securecrt) and started the transfer again - worked fine. Moving onto my router brought me more issues, though. I got a 2621xm from amazon (specifically, SAM networks). Hooked it all up, set the baud rate to 9600 - no console response. Changed the baud rate around to the various possible rates, still no response. Take a look at my front LEDs and sure enough: quote:Blink (500 ms ON, 500 ms OFF, 2 seconds between codes)—In is what I'm getting. Is my router probably shot?
|
# ? Jul 21, 2013 02:05 |
|
Erkenntnis posted:Not sure. I ended up canceling the transfer and switched term emulators (from terma to securecrt) and started the transfer again - worked fine. If you can;t get to ROMMON I think you are boned; that being said I do believe (and I might be wrong) that the ROMMON for a 2600 is replaceable. http://www.cisco.com/en/US/docs/routers/access/2600/hardware/installation/notes/2600mem.html#wp93177 try : http://www.ebay.com/itm/NEW-BOOT-26...=item48465a6023 more here: http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313.TR2.TRC1.A0.Xboot+rom+cisco&_nkw=boot+rom+cisco&_sacat=0&_from=R40 nzspambot fucked around with this message at 03:40 on Jul 22, 2013 |
# ? Jul 22, 2013 03:35 |
|
less than three posted:Anyone run into a memory leak with 3560X running 15.0(2)SE2? Yes, upgrade to 15.0(2)SE4 or go back to 12 where you came from. We chose the former and it seems to be working out.
|
# ? Jul 22, 2013 13:35 |
|
nzspambot posted:If you can;t get to ROMMON I think you are boned; that being said I do believe (and I might be wrong) that the ROMMON for a 2600 is replaceable. I just ended up getting a refund, fortunately. Another question, though. Got my other router in, working fine - but I went to set-up SSH v2, and it's missing the 'version' part of the command. code:
code:
e:figured it out - apparently even though SSHv2 was first introduced in 12.2, it's not available for the version of IOS that I have. sudo rm -rf fucked around with this message at 03:18 on Jul 23, 2013 |
# ? Jul 23, 2013 03:07 |
|
Can anyone give me some pointers or examples of manipulating vlanTrunkPortVlansEnabled via snmp? I can get the vlan list, convert it to binary, manipulate it, repackage to a hex string, but I cannot for the life of me work out how to set the values. I understand there's the vlanTrunkPortSetSerialNo, but I have no idea how to use it. the documentation on cisco site does not make sense to me. from: http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?local=en&translate=Translate&objectInput=1.3.6.1.4.1.9.9.46.1.6.1.1.4 "To avoid conflicts between overlapping partial updates by multiple managers, i.e., updates which modify only a portion of an instance of this object (e.g., enable/disable a single VLAN on the trunk port), any SNMP Set operation accessing an instance of this object should also write the value of vlanTrunkPortSetSerialNo." I have no idea how these spinnerlocks work, and the documentation I can find does not explain it terribly well. thanks.
|
# ? Jul 23, 2013 11:14 |
|
I'm setting up a pair of Stonesoft Stonegates and holy poo poo, this is a completely 100% different process than anything I've ever seen or worked with before.
|
# ? Jul 23, 2013 17:10 |
|
ed nvm I'm a functional retard. Zuhzuhzombie!! fucked around with this message at 21:42 on Jul 23, 2013 |
# ? Jul 23, 2013 21:33 |
|
Svarotslav posted:I have no idea how these spinnerlocks work, and the documentation I can find does not explain it terribly well. Well, it doesn't sound like there's any locking involved, it just increments that value, but it may behave like the copy operation and a few of the other ones do where you have to set the serial number and the requisite port index and vlan values in the same set command for it to accept it. I'm in the same boat as you where I find pretty poor documentation on how to implement some of the SNMP MIBs, or, at least, I feel like there is some knowledge I don't have while reading the SNMP MIB file about how it operates.
|
# ? Jul 24, 2013 00:01 |
|
Partycat posted:Well, it doesn't sound like there's any locking involved, it just increments that value, but it may behave like the copy operation and a few of the other ones do where you have to set the serial number and the requisite port index and vlan values in the same set command for it to accept it. Ok, I understand it now. Thanks. The OID for the serial was not exactly as documented, so i did an snmpwalk and found the rest of the OID string I needed. Once I did that, I was able to pull the serial along with the data, and then push the updated vlan list back to the switch along with the serial. Makes sense to me now. Cheers.
|
# ? Jul 24, 2013 03:25 |
|
Been a while since I've added a stack to a production 3750. Best way to prep before hand? Basically just put the same IOS on it? I know that the master will push it's IOS on the slaves but I've had weird issues in the past. I've changed the priority on my stack master to 10. Gonna set the priority of the slave to 1 and upgrade the IOS. That should be pretty much it?
|
# ? Jul 24, 2013 16:14 |
|
Some people like to prep it in the config but I just bring the IOS code to the same as the others then shove it in raw
|
# ? Jul 24, 2013 17:59 |
|
Has anyone here ever successfully set up JunOS on a FreeBSD image in VMWare? I've found varying instructions for varying versions of JunOS. None of which have yet to work. http://pauldotcom.com/2011/05/virtualizing-junos-on-vmware.html http://dustinberube.com/2011/05/creating-a-junos-olive-in-vmware/ http://www.packetmischief.ca/2011/03/24/installing-olive-10-4r1-under-vmware/
|
# ? Jul 24, 2013 19:34 |
|
Zuhzuhzombie!! posted:Been a while since I've added a stack to a production 3750. Best way to prep before hand? Basically just put the same IOS on it? I know that the master will push it's IOS on the slaves but I've had weird issues in the past. My advice is 1) ensure the IOS is identical, 2) if it's not a brand new slave, delete the vlan.dat on the new slave switch, 3) if it's not a brand new slave perform a wr erase on the slave, 4) set the priority in the new device. 5) on the master, use the provision command to add the new switch of that type into the config and set the ports up so I can cable them straight away. 6) ensure the stack ring is complete, so when you break it, prod data is still able to flow. 7) make sure you have a long stack cable to complete the ring (3m is gooood). 8) perform the physical stack add.
|
# ? Jul 24, 2013 22:31 |
|
Svarotslav posted:My advice is
|
# ? Jul 24, 2013 22:44 |
|
inignot posted:Has anyone here ever successfully set up JunOS on a FreeBSD image in VMWare? I've found varying instructions for varying versions of JunOS. None of which have yet to work.
|
# ? Jul 24, 2013 23:25 |
|
How are you guys feeling about the GOD drat ISR-4451X? Robb Boyd is pumped: http://www.cisco.com/en/US/products...otlight+isr4451
|
# ? Jul 25, 2013 04:25 |
|
DeNofa posted:How are you guys feeling about the GOD drat ISR-4451X? I feel ASR1002-X or go home.
|
# ? Jul 25, 2013 08:37 |
|
falz posted:Juniper Olive in Virtualbox is pretty easy to set up, give that a shot instead? You have to un tar/gzip a file, put a new binary in it, repackage it and install. I tried to follow the instructions on the pauldotcom site for freebsd on VmWare (shouldn't be radically different from Virtualbox). The un tar/gzip & re pack process was what they described there. However it was with an older Junos version 8 I believe. I have not found anything earlier then 10 available for download. Several other sites have instructions for varying JunOS versions newer then 8, some involve also changing lines in the install scripts. I've had no luck with any of it. All result in failures upon trying to add the package to freebsd.
|
# ? Jul 25, 2013 15:28 |
|
This question has probably been asked a million times in this thread so apologies in advance: what is the currently recommended router/switch combo for setting up a home CCNA lab? I've had a look around on Google however most of the guides/sites I found were a year or two old and I'm worried about investing in something that may be obsolete or not support a relevant IOS version.
|
# ? Jul 25, 2013 17:02 |
|
CCNA requires pretty much nothing equipment-wise. Get 2 switches as long as they run IOS so that you can figure out trunking and port channels, and get a router. Lab: Create multiple VLANs on the switches Change Spanning tree priority per vlan Create multiple trunks and portchannels between the switches Setup router on a stick so that a host on one vlan can get to a host in a different vlan. If you have two routers create two router on a sticks and figure out how to advertise each network between the two routers using static routes, then do it again using a routing protocol, I'd suggest OSPF. That's pretty much it. Equipment: Two of any of these: 2950/2960 3550/3560 and one or two of either of these: 2600 1800/2800/3800 Everything else on the CCNA is basically Cisco sales speak/indoctrination. You'll need to know it to pass the test, but it's not super relevant in the real world. ate shit on live tv fucked around with this message at 17:30 on Jul 25, 2013 |
# ? Jul 25, 2013 17:28 |
|
Just use Packet Tracer unless you absolutely need physical access to gear.
|
# ? Jul 25, 2013 17:30 |
|
Powercrazy posted:CCNA requires pretty much nothing equipment-wise. Get 2 switches as long as they run IOS so that you can figure out trunking and port channels, and get a router. Awesome thanks for the info. Regarding IOS versions would IP Base be fine across all the gear or would you recommend IP Advanced on the routers? GOOCHY posted:Just use Packet Tracer unless you absolutely need physical access to gear. That's an excellent point I completely forgot about Packet Tracer. Can you get Packet Tracer outside of being a registered academy student? I'll probably see if I can grab a copy from one of my work mates.
|
# ? Jul 25, 2013 18:29 |
|
I can't test this on anything in production at the moment, but I've been requested to provide a /28 subnet and have multiple IPs from it put on various interfaces as secondary IPs. Some interfaces are on the same device, some interfaces are on different devices. I'm telling him we can't do that, because you can't put multiple interfaces in the same subnet with a primary IP.
|
# ? Jul 25, 2013 22:29 |
|
Zuhzuhzombie!! posted:I can't test this on anything in production at the moment, but I've been requested to provide a /28 subnet and have multiple IPs from it put on various interfaces as secondary IPs. Some interfaces are on the same device, some interfaces are on different devices. I'm telling him we can't do that, because you can't put multiple interfaces in the same subnet with a primary IP. Do the interfaces have existing IP addresses? Could you use ip unnumbered?
|
# ? Jul 25, 2013 22:35 |
|
ragzilla posted:Do the interfaces have existing IP addresses? Could you use ip unnumbered? Yeah, they already have a /30 or a /29 on them. We need an additional range from some VOIP gateways. This is the first I've ever heard of "ip unnumbered". ed From first look, not sure if that's what will work either. From what I understand, he wants half of a /28 to sit on various interfaces while he uses the other half of the /28 as his outbound interface's IP, and he'd use one individual IP from my half as a gateway for one individual IP from his half. I'd be putting Zuhzuhzombie!! fucked around with this message at 22:43 on Jul 25, 2013 |
# ? Jul 25, 2013 22:40 |
|
Yeah that's confusing. Can you just modify the /28 to two /29s and then route him the second /29?
|
# ? Jul 25, 2013 22:50 |
|
jwh posted:Yeah that's confusing. I don't think so. If it were that easy, we'd just use a secondary /30 like we have with previous customers. Anyway. I'm sure I'll have to deal with this in the morning so I'll let ya know if it's as crazy as it seems.
|
# ? Jul 25, 2013 23:03 |
So I've got Nexus 7k OTV working across an MPLS core in a test env. All interfaces are set for 9216 where applicable. Why is my overlay interface 1400 mtu and cannot be adjusted? This limits my datacenter to datacenter MTU to 1454 (42 bytes OTV + 4 bytes dot1q) naturally the SAN guys are frothing like rabid animals (well more than usual anyway) about swinging a jumbo frame storage vlan over 1454. Cisco was like "just set ur interfaces for 9216 bro" Ummm, Cisco? I can't. OTV module is M1 btw.
|
|
# ? Jul 26, 2013 00:15 |
|
Okay, so my lack of doing layer 3 poo poo on a consistent basis (all layer 2 all the time, baby) has me kind of questioning my own design here. I have a /28 block of public IP addresses (let's call 'em 12.100.0.0/28 just for ease) that I want to subnet into two /29 blocks. One of these /29 blocks (12.100.0.0/29) will actually be NATed on my firewall, whose interface in completely different broadcast domain (12.85.0.0/29). The other /29 block (12.100.0.8/29) will hang off another interface on the T3 router. So the first /29 block on the NAT (12.100.0.0) won't need a network or broadcast address, freeing up the .0 and .7 addresses for me to use on the firewall. However, the thing that makes me nervous is that I need to advertise a /29 block to the T3 router from the firewall and a /28 block from the router to the ISP. So if I use that first address (12.100.0.0) as an address for translation on my NAT, everything will be fine, despite me advertising that 12.100.0.0/29 prefix from the firewall and then 12.100.0.0/28 from the router to the ISP, right? psydude fucked around with this message at 02:20 on Jul 26, 2013 |
# ? Jul 26, 2013 02:16 |
|
You should be fine with that. That is basically how subnetting/supernetting works. The one thing you'll want to do is install a static null route for 12.100.0.0/28 on the T3 router. This way if your FW or other switch eats it and stops injecting the /29 you won't loop packets all over the place. (And if you're doing BGP with your upstream you'll need it anyhow) Advertising a larger network to your ISP is super common on networks. I have 2 /20s that never actually exist as a /20. They immediately get broken up into /23s and /24s for each of my DCs. Then once they get into the DCs they are further broken down into /27s and /26s.
|
# ? Jul 26, 2013 02:49 |
|
Okay, cool. For some reason I was worried that using a summary address with a prefix that doesn't have a network address would result in weirdness.
|
# ? Jul 26, 2013 03:03 |
|
World z0r Z posted:So I've got Nexus 7k OTV working across an MPLS core in a test env. The 1400 MTU is for control traffic not for data traffic. Your data traffic is limited to the path MTU, so as long as all your intermediate interfaces etc. are set to jumbo you'll be fine.
|
# ? Jul 26, 2013 03:41 |
|
|
# ? May 29, 2024 04:38 |
|
World z0r Z posted:So I've got Nexus 7k OTV working across an MPLS core in a test env. I'll check our Nexus config tomorrow and let you know.
|
# ? Jul 26, 2013 05:06 |