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Cisco WLC – Use AP as a Sniffer
And send traffic to remote wireshark. https://www.cisco.com/c/en/us/support/docs/wireless-mobility/80211/200527-Fundamentals-of-802-11-Wireless-Sniffing.html#anc12 Wireshark Capture filter – host 10.1.1.3 more info 1) WLC / AP side Here are the steps in order to collect a trace using a sniffer mode LAP Configure the AP in Sniffer mode: The AP will reboot and it will not be able to serve clients. Once…
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Cisco CUE Service Module – Show console output without logging in
test service-module integrated-Service-Engine 0/0 console let’s you see the most recent console output without needing to actually log in. https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/unity_exp/rel8_6/install/CUE_86_install/boothelp.html Problem – No Session You are unable to open a session to the CUE module or you do not see any output on the console. Solution You can use this command in order to check the…
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Sonicwall Multiple WAN Subnets Configuration
Configuration information for configuring multiple WAN interfaces Should work for Comcast EDI (Fiber) circuits https://www.sonicwall.com/support/knowledge-base/configuring-multiple-wan-subnets-using-static-arp-with-sonicos-enhanced/170503911164326/ https://www.carlc.com/modules/Wordpress_Blog/configure-sonicwall-router-for-comcast-business-fiber-ethernet-multiple-ip-segmentsranges/ Pretty sure this should work too – assigning it to a DMZ zone http://starforce.cyou/
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Find hardware version of Raspberry Pi from the command line
See instructions here: https://elinux.org/RPi_HardwareHistory#Which_Pi_have_I_got.3F Run cat /proc/cpuinfo look for revision and look it up on above page ! or cat /proc/cpuinfo | grep ‘Revision’ | awk ‘{print $3}’ | sed ‘s/^1000//’ ! web version – not always accurate/updated though and not well documented rev=$(awk ‘/^Revision/ { print $3 }’ /proc/cpuinfo) && curl -L perturb.org/rpi?rev=$rev
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WLC AireOS AP Support Comparision Between version 8.0.140.0 and 8.2.141.0Reference: http://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html#pgfId-243612 APs Supported in both 8.0.140.0 and 8.2.141.010401140126016001700260027003500e3500i3500p3600e3600i3600p3702e3702i3702p600 OEAP700700WAP802 APs only supported in 8.2.141.01810 OEAP1810W1830185028003800ASA5506W-AP702AP803 APs only supported in 8.0.140.0113012401250AP801
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ISDN Caller ID Name
No caller ID (CID) names showing up on phones? Run the usual debug isdn q931 and debug isdn q921 to make sure that the CID name is coming from the provider. If it is, add isdn supp-service name calling to the serial port for the ISDN trunk. Then retest. Source: https://supportforums.cisco.com/docs/DOC-8873 Example: interface Serial0/3/0:23 no ip address encapsulation hdlc isdn…
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Adding Entries to an Existing ACL on an ASA
Adding Entries (ACEs) to an Existing ACL You can add entries to ACLs on ASAs by using the line number command. Line numbers on ASAs work differently than on routers. They are not stored in the configs and they will not show up in a show access-list command (basically the ASA doesn’t keep the numbers,…
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Default Interface Cisco Command
I can’t even count the number of times I’ve tried to remove all the configs from an interface by doing a no interface command. The router or switch always replies with a snarky “Removal of physical interfaces is not permitted.” I then copy all the commands for the interface, open up notepad, put a no…
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Cisco Router VPN Details
show crypto isakmp peers – Show ISAKMP peer structures (IPs and etc connected over the VPN) show crypto isakmp sa – Show ISAKMP Security Associations (IPs and etc connected over the VPN) show crypto session summary – Show VPN groups and their members (users and groups connected over the VPN) who – Shows users…
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SIP Carrier Debugs
SIP: Attribute mid, level 1 instance 1 not found.2524735: Feb 11 17:54:53.522 MST: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:Received:SIP/2.0 200 OKVia: SIP/2.0/UDP >:5060;branch=z9hG4bK2D041732Record-Route: From: “Bob Jones” ;tag=BAAA8198-462To: ;tag=_1255064163-933720387Call-ID: 876EDB09-357911E0-970ADCDF-F107A873@>CSeq: 101 INVITEContact: sip:+18004444444@67.231.0.94:5070Accept: application/sdp, application/isup, application/dtmf, application/dtmf-relay, multipart/mixedAllow: INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS,MESSAGE,PUBLISHContent-Disposition: session; handling=requiredContent-Type: application/sdpContent-Length: 276 v=0o=pvp 305419896 305419896 IN IP4 67.231.0.125s=- ! MEDIA GATEWAY – this is the carrier your SIP provider is…
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Cisco Command Tricks – Monitoring Performance
Show the list of tasks running sorted by CPU usage and excluding any that are using 0% sh proc cpu sorted | ex 0.00 Show spanning tree changes show spanning-tree detail | inc ieee|occur|from|is exec Show interface counter errors sh interface counters errors sh int | i line|error Show interface queue statuses and drops sh…
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Excel Tricks
Reformatting Phone Numbers To remove the dashes from phone numbers (e.g. change 206-456-789 to 206456789): =SUBSTITUTE(A1,”-“,””) To remove dashes and add digits to the beginning of phone numbers (e.g. change 206-456-789 to 1206456789): NOTE: This should be pretty useful in other situations too and should handle small additions better than creating a new cell/column with…
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Cisco Routers – Use Local Timezone for Log Timestamps
Router log timestamp entries are different from the system clock when the NTP is configured VERSION 2 Core Issue If a router is configured to get the time from a Network Time Protocol (NTP) server, the times in the router’s log entries may be different from the time on the system clock if the [localtime] option is…
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Cisco – ISDN Plan Map
Apparently Cisco CME creates its own ISDN call plan rule set automagically. With some vendors, when you send across a number which begins with 011 and plan type international their switches freak out. You can override this treatment by applying an ISDN MAP to the serial interface of the PRI. interface Serial0/2/0:23isdn map address 011.*…
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Cisco CME GUI Access
Post 8.0.2 you can no longer access the CME GUI through the CUE GUI. The workaround is to access this directly by going to:http:///telephony_service.html References: http://uc500.com/en/cue-802-not-able-acces-cmehttp://www.ciscosystems.com/en/US/docs/voice_ip_comm/unity_exp/rel8_0/rel_notes/rel_notes.html#wp339722
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Cisco IOS Shortcuts – Moving Around
Moving the Cursor on the Command Line Table 2 shows the key combinations or sequences you can use to move the cursor on the command line to make corrections or changes. Ctrl indicates the Control key, which must be pressed simultaneously with its associated letter key. Esc indicates the Escape key, which must be pressed first, followed…
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Notes and Reminders – Stuff to Look Into
Look into a Cisco config interpreter e.g. a language plugin file for Notepad ++ http://opensource-archive.org/showthread.php?t=91758http://opensource-archive.org/showthread.php?t=116776 *Look into – Cisco Event Manager Commands-Maybe use to log utilization locally. process cpu threshold type total rising 70 interval 5 falling 40 interval 5 event manager applet capture_cpu_spike event snmp oid 1.3.6.1.4.1.9.2.1.56.0 get-type next entry-op ge entry-val “80” exit-time 10…
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Cisco Regex and CLI Filters Misc
Not a fully formed note/post yet. Just some notes and links. http://www.cisco.com/en/US/docs/ios/12_0t/12_0t1/feature/guide/cliparse.html#wp5286http://hackathology.blogspot.com/2007/04/cisco-ios-cli-regular-expressions-part.html http://hackathology.blogspot.com/2007/02/basic-cisco-ios-router-management-to.htmlhttp://www.handsomeplanet.com/archives/7
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Cisco VPN PSK Decryption
Had a customer today who needed their Cisco IPSec VPN pre-shared key. The problem is we didn’t keep that information for their VPN account (only for our own) and the password is stored encrypted on the ASA. I can reset their PSK easily, but then the other computers that are already deployed with the existing…
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Cisco CLI – Show Command Section Filter and Other CLI Shortcuts
One of the most useful Cisco show filters ever is the new(ish) section filter. This lets you view information from the section you specify. For example, show run | section include ephone 12 will return all the config lines in the running config which pertain to your ephone 12. The section command (like all Cisco…
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Cisco CME – SIP Providers
Some SIP providers require that your PBX use a specific SOURCE port when communicating with their network. Voip Your Life (VYL Media) business setup authenticates via public IP address and requires that your PBX use port 5060 as a source and destination port when communicating with their network. The problem is that by default, Cisco…
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Bandwith.com Blocking Access to Rural Telephone Numbers
One of our customers ran into this issue the other day. They were attempting to call into a free conference bridge to meet with a client. They received a busy signal. After it happened twice in a day on 2 different numbers, they told us about it. After opening a ticket with Bandwidth.com, we received…
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Cisco KATE
Working on a problem with Cisco SPA525G phones freezing and rebooting. Going through the debugs, I find a bunch of KATE messages. Weird. Some research shows that this is pretty poorly documented. Research also shows that Google sucks if you want to do a case sensitive search, which in this case I definitely do. After…
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Cisco IOS Bundles
Cisco IOS Packaging Cisco IOS Packaging consists of eight packages for Cisco routers and five packages for Cisco switches. (See Figure 6.) Figure 6—Cisco IOS Packaging for Cisco Routers and Switches Four packages are designed to satisfy requirements in four typical service categories: IP data Converged voice and data Security and VPN Enterprise protocols Three…
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Alias for CLI Access to the CUE
!creating an alias to enable CLI access to the CUE module much more easily. ! alias exec !do a sh ip int brief and look for the service-engine or integrated service-engine number to fill in the proper one. It is usually 0/0 though. !alias exec cue service-module service-Engine session Examples: alias exec cue service-module service-Engine…
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Rebooting Cisco Phones
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/command/reference/cme_r1ht.html#wp1013890 Note that when resetting or restarting phones, the phone will not be rebooted immediately if it is currently in use. Instead, it will be rebooted once the phone call is over. Thus, resetting or restarting should both be safe to do during business hours as long as call traffic is not high at that…
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Show ip dhcp pool
shows you the leased DHCP IP addresses.2811#sh ip dhcp pool Pool sdm-pool1 : Utilization mark (high/low) : 100 / 0 Subnet size (first/next) : 0 / 0 Total addresses : 254 Leased addresses : 54 Pending event : none 1 subnet is currently in the pool : Current index IP address range Leased addresses 10.1.1.163…
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Ephone-dn-templates
ephone-dn-template To enter ephone-dn-template configuration mode and create an ephone-dn template containing a standard set of ephone-dn features, use the ephone-dn-template command in global configuration mode. To delete an ephone-dn template, use the no form of this command. ephone-dn-template template-tag no ephone-dn-template template-tag Syntax Description template-tag Identifier for this ephone-dn template. Range is from 1…
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OpenNMS Notes
(8:41:50 AM) lmbc2: I am interested in deploying an opennms setup to monitor 50-100 network devices (routers, switches, etc) and I want to use a hosting company to do this (8:42:02 AM) lmbc2: anyone have any experience with this?(8:42:24 AM) lmbc2: I was looking at Slicehost or Westhost but am open to other providers(8:43:26 AM)…
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Cisco Commands – Show difference between running config and startup config
Ever wonder exactly what changes have been made to the running config? Should you save them before reloading or would that break everything. Use show archive config differences nvram:startup-config system:running-config to view the difference between the startup config and the current running config. show archive config differences nvram:startup-config system:running-config router#show archive config differences nvram:startup-config system:running-configContextual…
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Cisco Commands – Archive and Archive Config
Automated backups/revisions of configs on Cisco routers. http://www.cisco.com/en/US/docs/ios/12_3t/fun/command/reference/cfrgt_01.html#wp1094316 archive To enter archive configuration mode, use the archive command in global configuration mode. archive Syntax Description This command has no arguments or keywords. Defaults No default behavior or values Command Modes Global configuration Command History Release Modification 12.3(4)T This command was introduced. 12.2(25)S This command was…
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Cisco Commands – config replace
Config replace allows you to overwrite your running config with the startup config or a config from flash, tftp, etc. WITHOUT reloading the router. More info:http://articles.techrepublic.com.com/5100-10878_11-6184709.html http://www.cisco.com/en/US/docs/ios/12_3t/12_3t7/feature/guide/gtrollbk.html Configuration Replace The configure replace command provides the capability to replace the current running configuration with any saved Cisco IOS configuration file. This functionality can be used to…
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Wacky Cisco 1721 Errors
*Mar 1 00:27:52.243: %SYS-5-RELOAD: Reload requested by console. Reload Reason: Reload command.System Bootstrap, Version 12.2(7r)XM2, RELEASE SOFTWARE (fc1)TAC Support: http://www.cisco.com/tacCopyright (c) 2003 by cisco Systems, Inc.C1700 platform with 98304 Kbytes of main memory program load complete, entry point: 0x80008000, size: 0xded8f8Self decompressing the image : ################################################# ################################################################################ ################################################################################ ############################# [OK] Smart Init is enabledsmart init…
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