Relaying NetBIOS Broadcast over IPSec tunnel.

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By NetBIOS broadcast supported in VPN tunnel, users of Microsoft Windows can search computers in remote VPN network by "Computer Name". Users don¡¦t need to pre-edit lmhosts in his/her local computer nor setup WINS server in between.

ras> ipsec load 1
ras> ipsec disp

---------- IPSec Setup ----------
Index #= 1 Active= Yes KeepAlive= No Protocol= 0
Name= 1
My IP Addr= 0.0.0.0
Local ID Type = IP Addr
Peer ID Type = IP Addr
Local ID Content = 0.0.0.0
Peer ID Content = 0.0.0.0
Secure Gateway Addr= 0.0.0.0
Local: Addr Type= SINGLE
IP Addr Start= 192.168.1.33 End= N/A
Port Start= 0 End= N/A
Remote: Addr Type= N/A
IP Addr Start= N/A End= N/A
Port Start= N/A End= N/A
Enable Replay Detection= No Key Management= IKE
---------- IKE Setup ----------
Phase 1 - Negotiation Mode= Main
Pre-Shared Key= 12345678
Encryption Algorithm= DES Authentication Algorithm= MD5
SA Life Time (Seconds)= 28800
Key Group= DH1
Phase 2 - Active Protocol= ESP
Encryption Algorithm= DES Authentication Algorithm= MD5
SA Life Time (Seconds)= 28800
Encapsulation= Tunnel
Perfect Forward Secrecy (PFS)= None
---------- NetBios Setup ----------
Broadcast Pass Through                                                                    /*<------broadcast is not turned on yet.*/
Status: Inactive

Group: none
ras> ipesc disp
Valid commands are:
sys exit ether ip
ipsec cnm
ras> ipsec config netbios active on
ras> ipsec save

ras> ipsec load 1
ras> ipsec disp
---------- IPSec Setup ----------
Index #= 1 Active= Yes KeepAlive= No Protocol= 0
Name= 1
My IP Addr= 0.0.0.0
Local ID Type = IP Addr
Peer ID Type = IP Addr
Local ID Content = 0.0.0.0
Peer ID Content = 0.0.0.0
Secure Gateway Addr= 0.0.0.0
Local: Addr Type= SINGLE
IP Addr Start= 192.168.1.33 End= N/A
Port Start= 0 End= N/A
Remote: Addr Type= N/A
IP Addr Start= N/A End= N/A
Port Start= N/A End= N/A
Enable Replay Detection= No Key Management= IKE
---------- IKE Setup ----------
Phase 1 - Negotiation Mode= Main
Pre-Shared Key= 12345678
Encryption Algorithm= DES Authentication Algorithm= MD5
SA Life Time (Seconds)= 28800
Key Group= DH1
Phase 2 - Active Protocol= ESP
Encryption Algorithm= DES Authentication Algorithm= MD5
SA Life Time (Seconds)= 28800
Encapsulation= Tunnel
Perfect Forward Secrecy (PFS)= None
---------- NetBios Setup ----------
Broadcast Pass Through                                                                    /*<------broadcast is turned on.*/     
Status: Active

Group: none