Posted on in Networking
Slaptijack reader Raj is looking for a way to limit inbound traffic on his switch ports based on the time of day. Specifically, he wants to restrict speed to 256 Kbps between 9 AM and 9 PM, and allow up to 1 Mbps the rest of the day. I've done …
Posted on in networking
For troubleshooting tips regarding the error message
%TAC+: no address for get_server see:
Troubleshooting "%TAC+: no address for get_server" on Cisco Devices.
While working with Cisco Catalyst IOS image 12.2(58)SE1, I noticed that configuration for TACACS+ had changed. My first clue that there was a problem was …
Posted on in Networking
If you're on a router that does a lot of traffic, finding the source (or destination) of abusive hosts can be problematic. The output from show ip cache flow can be extremely long and finding anything useful can take a very long time. The following IOS regular expressions (regexes?) can …
Posted on in Networking
If you've used Cisco switch clustering in a basic network (for example, when all switches are connected together and <acronym title="Cisco Discovery Protocol">CDP</acronym> is enabled), you've likely never considered how this switches communicate with each other. You might assume that the switches are using IP addresses from …
Posted on in Networking
For those that have been using Cisco IOS 12 forever, you may not have realized that Cisco has begun rolling out IOS 15. Although there are a lot of technical changes and features that are being introduced, IOS 15 introduces a new licensing scheme that may throw old users for …
Posted on in Programming
I've been working on a RADIUS client in Python that can send a disconnect message (packet of disconnect) to a Cisco router. I'm using pyrad 1.2 for the project.
I ran into this problem pretty quickly:
POD: 192.168.9.9 request queued
POD: Illegal authenticator in POD from …Posted on in System Administration
While doing some testing with Cisco Access Registrar (CAR) 5.0, I noticed that the test user had hundreds of old sessions hanging around:
--> query-sessions /r with-User X
Sessions with-User X for /Radius
Sessions for /Radius/SessionManagers/session-mgr-1:
S432 Key: 04000000000CF660, NAS: NAS.slaptijack.com, NAS-Port: 0, User-Name: X, Time …Posted on in Software
In a test lab, we ran into a situation where the connection between our Cisco Access Registrar (AAA) server and MySQL server was timing out. This forced the server to reconnect and resulted in the following errors:
name/radius/1 Error Server 0 ODBC client (DataSource 'my_odbc', Connection 8): SQLExecute …Posted on in Networking
The situation: A Cisco 7604 with SAMI card is able to send packets from the individual IOS instances running on the SAMI PPCs, but is unable to receive packets.
The hardware: The table below describes the hardware involved.
| Part Number | Description |
|---|---|
| CISCO7604 | Cisco 7604 Router |
| SUP32-GE-3B | Cisco Catalyst 6500 Series … |
Posted on in Networking
This is a picture (larger) of a Cisco 7604 with Sup32 and SAMI card. The modules you see here are:
| Part Number | Description |
|---|---|
| CISCO7604 | Cisco 7604 Router |
| SUP32-GE-3B | Cisco Catalyst 6500 Series / Cisco 7600 Series Supervisor Engine 32 with 8 ports Gigabit Ethernet, PFC3B, and MSFC2A |
| WS-SVC-SAMI-BB-K9 | Cisco … |
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