IPv6-Labor

Benutzer-Werkzeuge

Webseiten-Werkzeuge

Zuletzt angesehen:
ne:cisco

Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

Link zu dieser Vergleichsansicht

Beide Seiten der vorigen RevisionVorhergehende Überarbeitung
Nächste Überarbeitung		Vorhergehende Überarbeitung
ne:cisco [2023/09/02 14:51] – [Zugriff per SSH] adminne:cisco [2026/07/05 13:49] (aktuell) – [DHCP] admin
Zeile 7: Zeile 7:
  
   * [[https://www.safaribooksonline.com/library/view/cisco-ios-cookbook/0596527225/ch01s08.html|Booting a different IOS Image]]   * [[https://www.safaribooksonline.com/library/view/cisco-ios-cookbook/0596527225/ch01s08.html|Booting a different IOS Image]]
 +  * [[https://www.cisco.com/c/en/us/td/docs/routers/access/sw_activation/SA_on_ISR.html|Lizenzverwaltung auf den ISR2 Routern]]
 +  * [[.:cisco:ztp|Zero-Touch-Provisioning]]
  
 ==== Login & Password ==== ==== Login & Password ====
Zeile 32: Zeile 34:
 echo 'HostKeyAlgorithms ssh-rsa' >> /etc/ssh/ssh_config echo 'HostKeyAlgorithms ssh-rsa' >> /etc/ssh/ssh_config
 </code> </code>
 +
 +
 +
 ==== Login direkt in den privilegierten Modus ==== ==== Login direkt in den privilegierten Modus ====
  
Zeile 41: Zeile 46:
 Router(config)# aaa authorization exec default local Router(config)# aaa authorization exec default local
 </code> </code>
-==== NETCONF & RESTCONF ==== 
  
-<code> +----
-Router(config)# username admin privilege 15 secret cisco123! +
-Router(config)# netconf+
  
-Router(config)# ip http secure-server  
-Router(config)# restconf 
-</code> 
-  * https://developer.cisco.com/docs/ios-xe/#!enabling-restconf-on-ios-xe/restconf 
 ==== Proxy ARP ==== ==== Proxy ARP ====
  
Zeile 87: Zeile 85:
 https://community.cisco.com/t5/switching/cisco-ios-dhcp-server-classless-static-routes-on-dhcp-clients/td-p/1783721 https://community.cisco.com/t5/switching/cisco-ios-dhcp-server-classless-static-routes-on-dhcp-clients/td-p/1783721
  
 +== Anatomy of an Option 121 Packet ==
 +
 +Option 121 data is sent as a string of hexadecimal bytes. It format follows a strict pattern for each route:
 +
 +  - **Width (1 byte)**: The subnet mask in CIDR notation (e.g., 24 for a 255.255.255.0 mask).
 +  - **Destination IP (variable length)**: The target network. \\ Trick: It only includes the bytes required by the subnet mask. If it's a /24, it sends 3 bytes. If it's a /8, it only sends 1 byte!
 +  - **Router IP (4 bytes)**: The gateway address that knows how to get to that destination.
 +  - Cisco supports up to 10 routes, they are just concatenated together
 +
 +**Example: **
 +You want to tell a client: "To get to network 10.0.0.0/8, use the gateway 192.168.1.254."\\
 +The hex payload would look like this:
 +  08 0A C0 A8 01 FE
 +    > 08: The subnet mask (/8).
 +    > 0A: The destination network (10 in hex). Because it's a /8, it only needs one byte.
 +    > C0 A8 01 FE: The gateway IP (192.168.1.254 in hex).
  
 === DHCP-lease erneuern === === DHCP-lease erneuern ===
Zeile 106: Zeile 120:
 http://osxdaily.com/2015/07/30/release-renew-dhcp-command-line-ipconfig/ http://osxdaily.com/2015/07/30/release-renew-dhcp-command-line-ipconfig/
  
-=== NAT ===+---- 
 + 
 +==== NAT ====
 Overload the interface IP address of the outside interface, allow all hosts behind the inside interface to access the NAT: Overload the interface IP address of the outside interface, allow all hosts behind the inside interface to access the NAT:
 <code> <code>
Zeile 124: Zeile 140:
 </code> </code>
 ---- ----
 +==== NETCONF & RESTCONF ====
 +
 +<code>
 +Router(config)# username admin privilege 15 secret cisco123!
 +Router(config)# netconf
 +
 +Router(config)# ip http secure-server 
 +Router(config)# restconf
 +</code>
 +  * https://developer.cisco.com/docs/ios-xe/#!enabling-restconf-on-ios-xe/restconf
 +
 +
  
 ===== Switch ===== ===== Switch =====
ne/cisco.1693666293.txt.gz · Zuletzt geändert: von admin