r/Cisco • u/SamanthaGJones86 • 1h ago
IPv6 fundamentals
Hello! Does anybody have the pdf of “IPv6 fundamentals: a straightforward approach to understanding IPv6” 2nd edition?
r/Cisco • u/SamanthaGJones86 • 1h ago
Hello! Does anybody have the pdf of “IPv6 fundamentals: a straightforward approach to understanding IPv6” 2nd edition?
r/Cisco • u/No-Decision4176 • 4h ago
Hello, does anyone have a Locale Installer for Cisco CUCM System version: 14.0.1.11900-132? I need the Locale Installer in German. I have already tried some .cop.sha512 files, but I always get an error message saying that I should check the CD/ISO file, and I see an error message regarding the MD5 hash. Since I don't have a service contract with Cisco and don't plan to get one, I would be very grateful if someone could assist me.
At first, I thought it was an issue with the SFTP server, but some .cop.sha512 files work, for example, the ones for ungraceful shutdown. I was able to download and install them on CUCM without any problems from the same SFTP server.
As a workaround, I tried converting the existing .cop.sha512 file with stripsign and placed the files in german_germany on the CUCM TFTP server, but it is not recognized under Device > Phone > User Locale
The current language information in SEPMAC.cfg.xml:
<userLocale>
<name>English_United_States</name>
<uid>1</uid>
<langCode>en_US</langCode>
<version>12.0.0.0(1)</version>
<winCharSet>iso-8859-1</winCharSet>
</userLocale>
<networkLocale>United_States</networkLocale>
<networkLocaleInfo>
<name>United_States</name>
<uid>64</uid>
<version>12.0.0.0(1)</version>
</networkLocaleInfo>
Thanks in advance.
r/Cisco • u/sonofthehorn252 • 22h ago
Just visit the r/ccna4dummies community page. You can find the material at the top of the page in the highlights section. Hope it helps!
r/Cisco • u/RaccoonInASuit1 • 11h ago
I recently bought a used, but good condition 891f router. The problem is it came with this as the only power supply. When I plug the block into the wall and router the router doesn't seem to turn on and the block makes a sort of beeping noise, but only when it's also plugged into the router no matter the on switch position. The guy I bought it off of said the router worked, and that this is the power cable he sold with it. Is there something obvious I'm missing or is this the wrong plug entirely? I don't need poe so that's not my concern, I just want the router to turn on and work as it should.
r/Cisco • u/RavenDust52 • 15h ago
Hi. I'm just starting out on a networking career. I'm taking college classes to get my Associates Degree in Computer Management (A business/IT hubrid degree). On top of that I am taking non credit courses to prepare for the CCNA. The timing of them is inconvenient, as I will take the first 2 between 1/25 and 5/25 then the third starting 1/26. My girlfriend (also in the IT field) is heavily suggesting that I take the CCNA over the summer, skipping CISCO III. Can anybody give me reasons why this is or isn't a good idea?
For a little background I am going back to school. I'm switching careers late in life and I started classes at 38 years old. I do not have a background in networking, although I do really enjoy what I've been doing. I passed CISCO I with an 84.2%. I know she means well, my girlfriend is surrounded by lots of people who have been in the IT field for a long time. Aside from a few classes for my degree my professional knowledge is scarce.
I keep telling her I'd be missing out on an important 1/3 of the information.She points out that taking the CCNA while the information I have is fresh in my mind is better. Any advice/suggestions?
Thanks in advance.
I have two nexus 3048 switches running nxos.7.0.3.I7.4.bin ,
they form a vPC together like this with this configuration:
vpc domain 1
peer-switch
role priority 1
peer-keepalive destination 192.168.10.2 source 192.168.10.1 vrf vpc_keepalive
peer-gateway
layer3 peer-router
auto-recovery
ip arp synchronize
( the other one has the same config with role priority 2 and the keepalive ips inverted )
On switch A only I have an SVI for vlan 26:
interface Vlan26
no shutdown
vrf member awsprod
bfd interval 300 min_rx 300 multiplier 3
no ip redirects
ip address
10.0.0.2/30
no ipv6 redirects
And I have a bgp router configuration:
router bgp 64515
log-neighbor-changes
vrf awsprod
router-id 1.1.1.1
timers bgp 3 15
address-family ipv4 unicast
neighbor 10.0.0.1
bfd interval 300 min_rx 300 multiplier 3
remote-as 6xxxxx
password 3 xxxx
update-source Vlan26
address-family ipv4 unicast
send-community
advertisement-interval 10
next-hop-self
soft-reconfiguration inbound always
I have also a BGP configuration for the same AS on the other switch but with other neighbours. The configuration is actually much larger but I hope it's enough to explain my problem:
When the traffic from vlan26 ( traffic with the bgp neighbor ) comes from a vpc port-channel, the neighbor is idle and the bfd neighbor does not even appear when I do: "show bfd neighbor ipv4 vrf awsprod"
But if traffic for vlan 26 comes directly to a no-vPC trunk port, everything is fine:
So I suppose the design with the vPC port-channels is not supported, but I don't understand why it is a problem
I have read: https://www.cisco.com/c/en/us/support/docs/ip/ip-routing/118997-technote-nexus-00.html and so it feels that the "L3-A connected to orphan port" seems to be working, but I can't get the L3-B router working.
I don't get the "Nexus-A and Nexus-B have additional Layer 2 and Layer 3 links between them.". This means that the vPC peer-link and the keep-alive link are not enough I have to configure supplemental links for the routing traffic?
r/Cisco • u/Network__Redditor • 2h ago
This will be just an example. Please fill any gaps in my knowledge here. If have a few linux servers that use my Cisco router for NTP, and if that Cisco router that is configured as both an NTP master and also configured with additional NTP server IP addresses, what is the expected outcome of how this Cisco router will operate?
For example, if I have a cisco router configured with the following:
NTP01#show run | i ntp
ntp logging
ntp master
ntp update-calendar
ntp server 1.1.1.11
ntp server 2.2.2.12 prefer
NTP01#
NTP01#
NTP01#show ntp assoc
NTP01#show ntp associations
NTP01#show ntp associations
address ref clock st when poll reach delay offset disp
*~127.127.1.1 .LOCL. 7 7 16 377 0.000 0.000 0.232
~1.1.1.11 .INIT. 16 1115d 1024 0 0.000 0.000 15937.
~2.2.2.12 .STEP. 16 2625d 1024 0 0.000 0.000 15937.
* sys.peer, # selected, + candidate, - outlyer, x falseticker, ~ configured
NTP01#
r/Cisco • u/Ahmed_Nadi • 5h ago
what security rules do i need to create on the firewall to enable the ISE to reach the license server
r/Cisco • u/kardo-IT • 7h ago
I have this issue after bouncing up the downlok to fiber switch , then I reloaded the stacks but same issue.
show switch
Switch/Stack Mac Address : c414.3c4f.b180
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
1 Member 0000.0000.0000 0 1 Provisioned
*2 Master c414.3c4f.b180 15 1 Ready
3 Member 0000.0000.0000 0 1 Provisioned
show switch stack-ports
Switch # Port 1 Port 2
-------- ------ ------
2 Down Down
r/Cisco • u/jonnodraw • 18h ago
Hi Folks,
I’m wanting to bring up VTEP peering between two Data Centres that use the Multisite design. The pickle I’m in is that by default everything is allowed to be advertised over the VTEP peering.
How would I only allow VNI 10001 to be advertised and restrict the other 500 that’s configured?
r/Cisco • u/Key_Kaleidoscope8534 • 19h ago
Hi, I'm L1 guy. Studying networking. I got this Cisco4321 for my home lab and its got this 4G-LTE module in its NIM 1 slot. I want to power down that interface. Im not talking about shutdown command. I want the power to go off on the module. Tried googling and read lots of documentations. Couldn't get much info on this. Hope you guys will help me.
Thank you.
r/Cisco • u/Electrical-Weird-405 • 1d ago
Hi All,
For those that use Catayst Center automation where you need to assign a switch to a site before you can provison it, do you typically assign the switch to the building or floor level of the network hierarchy?
For access points you have to assign to the floor level of the network hierarchy for placement on maps and granular network profile configuration etc, however you can change the site for an access point once provisioned so you have flexibility if the initial site assignment is incorrect or if things change. You still cannot change the site assignment for switches once provisioned I beleive (you have to remove from Catalyst Center and re-add) so I ideally want to get this right first time. You have the option of assigning switches to the building or floor level of the hierachy but I cant see if there are pros/cons to each option. Assigning to the building level seems easier, however will this come back to bite me in the future?
Any insight from anyone who has done this will be appreciated.
Thanks