Learning, Sharing, Creating
Got mac address flapping messages on Cisco Switch log. Dec 22 17:27:16: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.0000.fe01 in vlan 20 is flapping between port Gi0/12 and port Gi0/11 Dec 22 17:27:16: %SW_MATM-4-MACFLAP_NOTIF:…
Working on move PIX/ASA migration to Juniper SRX. Some of ports name convention Cisco is using which is different from JunOS. I found following list to map port number to…
My company recently upgraded our firewall UTM from R71 to R75. It was neat and no worries upgrade until today our External Security company sent us a report our public…
FW MONITOR————It is said that it captures at 4 important points in the firewall namely i,I,o & O. You would see them in the capture in the same sequence.i –…
The 802.3ad standard supports aggregation on full duplex, point to point links, to form a Link Aggregation Group (LAG), so that a Media Access Control (MAC) Client can treat the…
SecureXL is a patented technology consisting of a software package with an API for the acceleration for multiple, intensive security operations. In addition to the IPS, SecureXL also accelerates operations…
Change WebUI port to 4434 from Command line: webui disable webui enable 4434 Unfortunately after a cpstop/cpstart or reboot, the 4434 port will not survive. It rolled back to 443…
Another useful post for route-based vpn from http://x443.wordpress.com/page/5/ Cisco router configuration: crypto isakmp policy 1 encr aes 256 authentication pre-share group 5crypto isakmp invalid-spi-recoverycrypto isakmp keepalive 10crypto isakmp key 0…
Existing rule : static (dmz,outside) 200.147.90.89 172.17.1.3 netmask 255.255.255.255 There is a special situation come up today. When 172.17.1.3 access to another site 200.200.200.200 , it has to be nat-ed…
Was thinking to use Domain Object as a source in our firewall rule. After consulted with checkpoint support, it seems impossible if your domain object represented multiple ip addresses. SK42128…
Add static route in Smoothwall Firstly, edit the file /etc/rc.d/rc.netaddress.up Above the 'echo "setting up firewall ……."', add: /sbin route add -net destination netmask subnetmask gw gateway devdeviceinterface ————————————– Edit…
There is a Citrix cluster deployed in our environment. But cluster ip not working from an outside network, although working fine in same network. Checked MS doc – http://technet.microsoft.com/en-us/library/cc732592(WS.10).aspx troubleshooting…