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We have 2 ASR1000 Router in our company. Redundancy is provided through HSRP.After several users complained about a slow line speed, we did some tests with iperf and saw that the result shows always a very bad iperf result.The test setup wasNotebook1...
Today we received an malicious Attachment.
The Cisco ESA was unable to recognize this attachment as an malicoius Attachment.
Virustotal.com found a Virus, even McAfee on Virustotal.com was able to find the Virus.
What i don't understand is, we also h...
I want to force every TLS communication with PFS.
Is it correct to use only EDH+<cipher or cipher group name> as the Cipher for my plan?
https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/200169-Configure-ESA-to-prefer-Pe...
First...i read all tutorials about the automatic backup.
e.g.
https://supportforums.cisco.com/discussion/11111956/automating-backup-confighttps://supportforums.cisco.com/discussion/11849021/ironport-backup-and-import-processhttps://supportforums.cis...
This week we got a lot of spam. Every spam mail has a zip-attachment with a *.wsf File in it.
(e.g.Receipt 4382-0694.zip -> Receipt 12060-610911.wsf)https://myonlinesecurity.co.uk/blank-email-receipt-malspam-delivers-locky-thor-version/I wrote this f...
Hello,it is much easier as you might think.To find the failure we only made the test between the 2 notebooks (red line.)Only the 2 notebooks, the 2 switches (marked with a green line) and the ASR1002 (orange line) were involved.Really this simple tes...
Hello,i uploaded the config again..i only removed the password and the certificate.Our network topology was saved as a png file. I hope everything is visible.Our switches don't do inter-vlan routing, the routing is done by the ASR Router.
many thx for your help. the hosts (Iperf) are not directly connectedwe have access switches between the hostswe always have the same reusltswe have stfp re-transmissions, but only a few (30x in 30 seconds) and no mtu mismatchesthe router version is "...
I have this problem very often..nearly always a certificate problem. check the destination domain with this sitehttps://de.ssl-tools.net/mailservers maybe you need to install the certificate from the destination server. You can get the certificate a...
