We needed to change the IP of our many to one nat earlier today. Relevant config lines below: interface Vlan90 ip address 192.168.122.1 255.255.255.0 ip nat inside!interface Vlan281 ip address a.b.c.d 255.255.252.0 ip nat outside ip flow monitor c...
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We have a security requirement to encrypt the data flow to our DR location and the storage vendor does not do so in the replication traffic process. I have been asked to look into encrypting the traffic at the switch level. I have read that MACsec c...
Hello, We have some C3850 switches all of which have sufficient power supplies to support UPOE. I have a couple questions about the configuration of POE. 1. Is there anything special I need to do to enable the UPOE functionality or does it just happ...
I have a weird issue that I need assistance with. We have a 6807 that we have been using to make a many to one NAT for our classroom. Relevant information included below: interface Vlan90 ip address 192.168.122.1 255.255.255.0 ip nat inside! inte...
PROBLEM #1 I have 2 identical Cisco 3650 switches. I was trying to reset enable password on switch #1. Followed up tips in an older forum post I made and it ended up removing the pre-authentication that required I log in via privileged user first and...
Hello, When the system jumbo mtu is set at 9216, do we still have to configure mtu as 9216 at per port/ port-channel level? All ports in L2 mode. NXOS version is 7.0(3)I1(3)
I have cisco catalyst L2 switch as a access switch for my servers & storage Recently i encounter STP issue with the switch Attached is my switch log screenshot and my both access switches configuration, can someone explain to me anything that i miss...
If MSS is calculated without any errors, fragmentation cannot happen at L3. Plus, I recently heard that fragmentation does not happen for TCP & UDP. Then, when does the fragmentation happen at L3? Lastly, if a segment gets fragmented at L3, only fir...
Hello all, I will keep it simple with only two routers. Please see the diagram. R1 will prefer to reach Loopback0 of R2 over the f0/0 (Area0). Even making higher the cost in f0/0, selection does not change! I thought that it may something have to d...
Hi All, I have an odd issue with OSPF and ASAv. If i create 3 ASAv's in serial I can get OSPF up and working with no problem routes pass all the way along. If I try to connect a physical switch/router or an NSX edge device I get a very odd iss...
Hi, Currently, I am doing the User Acceptance Testing for the Network which includes 2960x,3760x Series, Catalyst 4500x Switches. I am doing this testing for the first time. If anybody has experience on this, Please share with me the important testi...
Resolved! Cisco EPC in IOS XE
Has anyone tried this on a isr4451 router? According to cisco documentation , the buffer size need not be configured. What are the complications that the capture might not have been stopped and router run out of memory? Another question I have is ,...
Resolved! SSH access to Nexus 900
How Can I do to access a Nexus 9000 from different IP segment that currently the device is? Do I need to create an ACL in the Nexus device to allow that?
Hi All, I have apic firmware different than for Spine and leaf, so APIC can't to discover the leaf and spine. i want to upgrade leaf and spine via cli using usb. can anyone provide me the procedure how to upload the firmware on leaf and spine then bo...
