CISCO ASA REMOTE ACCESS

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Cisco Asa ISAKMP Phase1

Configuring an Address Pool

  • ciscoasa(config)# ip local pool vpn-roadwarrior-pool 172.28.28.10-172.28.28.30 mask 255.255.255.0

User anlegen

  • ciscoasa(config)# username thomas password oimel
  • ciscoasa(config)# username david password suxer
  • ciscoasa(config)# username janning password schmeich

Transformset

  • ciscoasa(config)# crypto ipsec ikev1 transform-set AES256-MD5 esp-aes-256 esp-md5-hmac

Typ der Tunnelgruppe festlegen

  • ciscoasa(config)# tunnel-group vpn-roadwarrior type remote-access

Attribute der Tunnelgruppe festlegen

  • ciscoasa(config)# tunnel-group vpn-roadwarrior general-attributes

Addresspool zuweisen

  • ciscoasa(config-tunnel-general)# address-pool vpn-roadwarrior-pool

PSK festlegen

  • ciscoasa(config)# tunnel-group vpn-roadwarrior ipsec-attributes
  • ciscoasa(config-tunnel-ipsec)# ikev1 pre-shared-key sau-geheim

Zusammenfassen dyn-vpn-roadwarrior Transformset AES256-MD5

bezogen auf Policy 10 aus Cisco Asa ISAKMP Phase1
  • ciscoasa(config)# crypto dynamic-map dyn-vpn-roadwarrior 10 set ikev1 transform-set AES256-MD5

Enables Reverse Route Injection

  • ciscoasa(config)# crypto dynamic-map dyn-vpn-roadwarrior 10 set reverse-route

Creates a crypto map entry that uses a dynamic crypto

  • ciscoasa(config)# crypto map my-vpn-roadwarrior-map 10 ipsec-isakmp dynamic dyn-vpn-roadwarrior

Anwenden der crypto map auf das outside interface

  • ciscoasa(config)# crypto map my-vpn-roadwarrior-map interface if-outside

Vpn pool aus nat nehmen

Festlegen der Ausnahme

  • object network no-nat-roadwarrior
  • subnet 172.28.28.0 255.255.255.0

Ausnahme anwenden

  • nat (if-inside,if-outside) source static obj-lan obj-lan destination static no-nat-roadwarrior no-nat-roadwarrior

Copy and Paste

configure terminal
ip local pool vpn-roadwarrior-pool 172.28.28.10-172.28.28.30 mask 255.255.255.0
username thomas password oimel
username david password suxer 
username janning password schmeich
crypto ipsec ikev1 transform-set AES256-MD5 esp-aes-256 esp-md5-hmac
tunnel-group vpn-roadwarrior type remote-access
tunnel-group vpn-roadwarrior general-attributes 
address-pool vpn-roadwarrior-pool
exit
tunnel-group vpn-roadwarrior ipsec-attributes 
ikev1 pre-shared-key sau-geheim
exit
crypto dynamic-map dyn-vpn-roadwarrior 10 set ikev1 transform-set AES256-MD5
crypto dynamic-map dyn-vpn-roadwarrior 10 set reverse-route
crypto map my-vpn-roadwarrior-map 10 ipsec-isakmp dynamic dyn-vpn-roadwarrior
crypto map my-vpn-roadwarrior-map interface if-outside
object network no-nat-roadwarrior
 subnet 172.28.28.0 255.255.255.0
 nat (if-inside,if-outside) source static obj-lan obj-lan destination static no-nat-roadwarrior no-nat-roadwarrior
exit

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