Category: Cisco
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Cisco – Absence Of A Wildcard Mask In An ACL
If I have a standard ACL entry like this: access-list 98 deny 10.0.0.0 access-list 98 permit any and I apply it to an interface. What addressing does this block? One might think that leaving off the wildcard mask would use the classful boundary(/8 or 0.255.255.255) of the addressing…but one would be wrong. In IOS if…
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Configure Cisco 2509 For Frame-Relay
While doing my CCIE studying I configured an old 2509 I had to act as a frame relay switch. This is more or less just a quick dump of my config for posterity 😉 IOS version c2500-i-l.121-27b.bin frame-relay switching ! interface Serial0 description *DCE serial connection to 1 no ip address encapsulation frame-relay clockrate 56000…
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VM Failover With SAN Replication Across Multiple Datacenters
This video and the included configs/diagrams show how to have failover with VM infrastructure/SAN replication in multiple datacenters. This basically leverages the power of BGP to move our public addressing. BGP is the ONLY choice to have addressing seamlessly migrate from one site to another…it is the protocol that the Internet happens to run on…
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Cisco Callmanager 4 Delete User From Global Directory – Object Not Found
After attempting to delete users from my callmanager directory I was confronted with a Javascript error stating “Object not found”. When I compared my MLA Enterprise Parameters to the LDAP configuration I found it was referencing an LDAP entry that didn’t exist! All one must do is compare your base LDAP zone to that listed…
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Connect To Cisco Callmanager 4 LDAP
While trouble shooting some issues I needed to connect into my callmanager’s LDAP database. To do so, open the LDAP config file. c:\dcdsrvr\DirectoryConfiguration.ini [ldap] RETRYDELAY=5000 ldapURL=ldap://CISCOCCM1:8404 dn=cn=Directory Manager, o=cisco.com passwd=0c111104761331001c99 ciscoBase=o=cisco.com dirType=Default dirAccess=true useSSL=true ldapsURL=ldap://CISCOCCM1:8405 Note the port in “ldapURL”. Note also the “dn”. Connect using your favorite LDAP program(I like LDAP admin). Set security…
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Cisco Callmanager 4 DCOM Error
If you happen to be getting a DCOM error attributed to the SQLSvc, it will most likely look like the following: Event Type: Error Event Source: DCOM Event Category: None Event ID: 10009 User: CISCOCCM1\SQLSvc Computer: CISCOCCM1 Description: DCOM was unable to communicate with the computer CICSOCCM2 using any of the configured protocols. What it…
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Standard Compact Flash Card In A Cisco Router
It’s well known that Cisco wants to sell you a 512MB compact flash card for $150. So, what’s so special about the Cisco branded ones? They have a Cisco sticker on them. I just bought a couple of 2GB compact flash cards, formatted them in my router, and they work like a champ! No flash…