Category: Troubleshooting
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Docker images: ip addr add 10.0.0.10/24 dev eth0ip route add default via 10.0.0.10 FortiGate images: comfit system interfaceedit port1set ip 10.0.0.11 255.255.255.0set allowaccess ping https sshend Palo Alto images: # set deviceconfig system type static# set deviceconfig system ip-address 10.0.0.12 netmask 255.255.255.0 default-gateway 10.0.0.1# commit
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So my wife wasn’t well for most of the weekend and the kids are busy doing their stuff. So I got some time to play around 🙂 on my home lab. – so here’s the thing: It took me less than 5 mins to obtain a WPA2 handshake and less…
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Complete these steps: Unplug the power cable from the phone, and then plug in the cable again. The phone begins its power up cycle. Immediately press and hold# and while the Headset, Mute, and Speaker buttons begin to flash in sequence, release #. The line buttons flash in sequence in order…
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How to view interfaces and descriptions? #show nameif How to remove the entire access list? # clear config access-list <ACL-Name> –There are many things you can delete with the clear config command, be careful with how you use this command. How to view the interface name, IP address and state…
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Create SPAN session ================================= 9kswitch# conf t 9kswitch(config)# monitor session 1 Configure destination port (destination cannot be a FEX port or a Port-channel!) ================================= 9kswitch# conf t 9kswitch(config)# interface eth 1/15 9kswitch(config-if)# switchport monitor 9kswitch(config-if)# exit 9kswitch(config)# monitor session 1 9kswitch(config-monitor)# destination interface eth 1/15 Configure source port (or VLAN)…
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Here’s some useful ‘built-in’ Wireshark capability, for troubleshooting on the supervisor. The feature only works with process switched traffic. nexus#ethanalyzer local interface inband capture-filter “udp port 161” nexus#ethanalyzer local interface inband capture-filter “udp port 161” detail nexus#ethanalyzer local interface inband capture-filter “udp port 161” write bootflash:snmp.pcap An ACL log is necessary to capture data plane…
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Cisco Video and TelePresence Architecture Design Guide DSCP and Precedence Values Implementing QOS Policies with DSCP
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I ran into this issue where SMTP would not send from within Outlook 2016 running on Win 10, tried every known configuration of SMTP; both encrypted and unencrypted with the same outcome. I used the System File Checker by right clicking on the Start button and selecting Command Prompt (Admin). (You’ll need to click…
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“debug ip packet detail” will thrash the router if it is in production. Probably best to create an extended access-list for source/destination you are pinging. eg; access-list 101 permit icmp host 1.1.1.1 host 2.2.2.2 debug ip packet 101 detail This shows detailed ICMP debugging between the 2 hosts specified in the ACL.
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show ip flow interface displays the NetFlow configuration for an interface show ip cache flow Verify that Netflow is operational and display summary of NetFlow statistics. show ip cache verbose flow Used to verify that NetFlow is operational and to display the detailed summary of NetFlow statistics. show ip flow export…