= Cisco 1841 =
Unser Router für die Enterprise-Bedürfnisse.

* Hostname: cisco.hq.c3d2.de (172.22.99.8)

<source lang="bash">
cisco# show version
</source>

<source lang="bash">
Firmware: C1841-ADVENTERPRISEK9-M (Compiled Tue 24-Mar-15 08:30 by prod_rel_team)
</source>
[https://software.cisco.com/download/release.html?mdfid=279119622&softwareid=280805680&release=15.1.4M10&flowid=7351 c1841-adventerprisek9-mz.151-4.M10]

Unterstützt folgende Protokolle:

<source lang="bash">
cisco# config t
cisco(config)# router ?
- bgp       Border Gateway Protocol (BGP)
- eigrp     Enhanced Interior Gateway Routing Protocol (EIGRP)
- isis      ISO IS-IS
- iso-igrp  IGRP for OSI networks
- lisp      Locator/ID Separation Protocol
- mobile    Mobile routes
- odr       On Demand stub Routes
- ospf      Open Shortest Path First (OSPF)
- rip       Routing Information Protocol (RIP)
</source>

== Einloggen ==
Passwort: bekannt

<source lang="bash">
ssh cisbert@cisbert.hq.c3d2.de
</source>

Nach dem Einloggen 'enable' eingeben, gefolgt von dem Loginpasswort.

== Netzwerk debuggen ==

<source lang="bash">
cisco#debug ip tcp
cisco#debug ip udp
cisco#debug crypto ipsec
cisco#debug crypto isakmp
cisco#debug crypto isakmp sa

# display debug log over ssh
cisco#terminal monitor
# undisplay debug log 
cisco#terminal no monitor

# and to turn it all off again, you need to type:
cisco#no debug all

# BGP-Status anzeigen
cisco#show ip bgp summary
</source>

== NTP/Zeit == 

<source lang="bash">
sh ntp asso
sh clock 
</source>

== Konfiguration ==

<source lang="bash">
cisco>enable
cisco#config terminal
cisco(config)# ... # Konfiguration hier
cisco(config)#exit
cisco#write memory
# konfiguration backupen
cisco#copy run flash:working_copy
# konfiguration wieder herstellen
cisco#copy flash:working_copy startup
cisco#reload
</source>

== Beispielpeering mit AS4242420045 ==

[[Datei:Cisco-To-Cisco-Ipsec-Peering.png]]