Differences

This shows you the differences between two versions of the page.

--- networking:cisco-1921 [20/06/2025 17:14] – andrew
+++ networking:cisco-1921 [24/06/2025 22:58] (current) – andrew
@@ Line 1: / Line 1: @@
 ====== Cisco 1921 Gigabit router ======
+{{:networking:cisco1921.png?400 |Cisco 1921}}
+Replaces [[cisco-1841|Cisco ADSL & 1841 router]] as this is a Fast Ethernet only router, the 1921 is a similar router but with Ge0/0 and Ge0/1 interfaces and two hwic slots. I have a EHWIC-1GE-SFP-CU card as well because in the foreseeable future I will need to bring the internet in from the ISP ONT.
+{{ :networking:cisco-ehwic-sfp.png?100|Without SFP module}}
+Note this is NOT a direct fibre from the ISP, it is fibre to the ONT, then a Ethernet to fibre converter and on to the 1941 SFP fibre in a different building.
-Replaces [[cisco-1841|Cisco ADSL & 1841 router]] as this is a Fast Ethernet only router, the 1921 is a similar router but with Ge0/0 and Ge0/1 interfaces and two hwic slots. I have a EHWIC-1GE-SFP-CU card as well because in the foreseeable future I will need to bring the internet in from the ISP ONT. Note this is NOT a direct fibre from the ISP, it is fibre to the ONT, then a Ethernet to fibre converter and on to the 1941 SFP fibre in a different building.
+{{:networking:ehwic-1ge-sfp.png?200|sfp fibre module fitted}}
 First problem...
@@ Line 55: / Line 58: @@
+Banner text for a multiline statement is a bit unusual:-
+<code>
+router01(config)#banner login $
+Enter TEXT message.  End with the character '$'
++-------------------------------------------------------+
+|                                                       |
+|  Legal Warning - Access forbidden unless authorized   |
+|                                                       |
++-------------------------------------------------------+
+|             This is a private system and              |
+|      is only for the use of authorized personnel.     |
+|                                                       |
++-------------------------------------------------------+
+|                                                       |
+|  If you are allowed access, you will have been told.  |
+|    If you have to ask anyone if you are authorized,   |
+|                                                       |
+|                   -*YOU AREN'T*-                      |
+|                                                       |
++-------------------------------------------------------+
+$
+router01(config)#
+</code>
+{{:networking:450px-fttp-ont-pon.jpg?100|}}