Network Security

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I frequently receive logs from my ASA that indicate random IP addresses are trying to establish a VPN tunnel with it: ASA-4-713903ASA-3-713902 Possible unexpected behavior of a peer occured (e.g., loss of connectivity). Group = DefaultRAGroup, IP = x...

rweir0001 by Level 1
  • 33857 Views
  • 6 replies
  • 1 Helpful votes

We are planning to move the Cisco FMC server from the CentOS KVM server to the Ubuntu 22.04 KVM server. Does anyone have any document for same. Additionally what are the precaution need to take to address this

Vishal6 by Level 3
  • 492 Views
  • 4 replies
  • 0 Helpful votes

Dear all,how can I change the chassis name on FirePower-1120?firepower-1120 /system* # set name FirePower-1120Warning: System name modification changes FC zone name and redeploys them non-disruptivelyfirepower-1120 /system* # commit-bufferError: comm...

Azad.A by Level 1
  • 336 Views
  • 1 replies
  • 0 Helpful votes

We are in the process of setting up a Hybrid Cloud/ On-prem Exchange environment. We can successfully connect over port 443, but when we try to send emails over port 25 we are getting a SSL Block. We are using the Decrypt - Known Key rule set up usin...

tbduff001 by Level 1
  • 317 Views
  • 0 replies
  • 0 Helpful votes

hello  I am working on an ISE v2.7 to v3.2 upgrade /migration  I have staged a VM with a v3.2 build    I am trying to understand the timing of the handover for example if I restore the production configuration & install the certs  from v2.7 to the v3...

I have traffic flow like shown below -A Microsoft public IP > a public IP on our DMZ firewall on prem > NAT > an private IP on prem.Is it possible to configure FW to forward traffic as shown below?A Microsoft public IP > a public IP on our DMZ firewa...

tachyon05 by Level 1
  • 817 Views
  • 6 replies
  • 2 Helpful votes

Resolved! FMC Policy Export

HiThe Cisco Doc for the Policy import/export says the below, Does this mean just the FMCs should be on the same version and the FTD can be on a different version ?? (The importing and exporting appliances must be running the same version of the Firep...

ASA 5580,系统版本是8.4(1),现在配置failover时,inside的接口无法启用lacp协议,两端都是active,对端交换机配置port-channel,debug发现有lacpdu报文发送,但是在ASA这边没有收到,同时asa也没有发送报文,导致port-channel一直是down。网络拓扑如附件。现在是9.1连接cisco 7010交换机的10/5口作为port-channel接口,不知为什么,port-channel接口始终无法协商lacp成功,两端均为active,但...

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