New features:
* VPCs now checks for duplicate addresses when assigning IPv4 addresses
* DNS is now supported
* Much more extensive help
* tracert has been simplified to just trace, and allows for protocols other than UDP (TCP & ICMP)
* Some commands have been replaced with more logical syntax, but usually the old syntax still works:
arp is now show arp
dhcp is now ip dhcp
ver is now show version
history is now show history
New commands:
help (same as ?)
rlogin (telnet to a port on a host)
sleep (useful in scripts)
set dump (great for seeing protocols at work)
Modified commands:
arp (now show arp - with more options)
dhcp (now ip dhcp - with more options)
show (many more options)
clear (more options)
ip (more options including DNS)
set (more options)
trace (formally tracert, more options)
Bug fixes:
The source port for pings to TCP & UDP ports is now random, allowing it to work through firewalls
DHCP now sets option 12 (Host Name) correctly in the DHCP Discover
The echo command no longer leaves blank lines between output
Details:
* Many more options for the show command:
show [arp [|all]|dump|echo|history|ip [|all]|ipv6 [|all]]
arp [|all] Show arp table for VPC or all VPCs
dump [|all] Show dump flags for VPC or all VPCs
echo Show the status of the echo flag (see set echo)
history List the command history
ip [|all] Show IPv4 details for VPC or all VPCs
Shows VPC Name, IP address, mask, gateway, DNS, MAC,
lport, rhost:rport and MTU
ipv6 [|all] Show IPv6 details for VPC or all VPCs
Shows VPC Name, IPv6 addresses/mask, gateway, MAC,
lport, rhost:rport and MTU
version Show the version information
Notes: if
and are missing, arp/dump/ip/ipv6 will display the current VPC.
* In particular, the new show ip and show ipv6 commands are really useful
show ip [|all]
Show IPv4 details for VPC (default this VPC) or all VPCs, including
VPC Name, IP address, mask, gateway, DNS, MAC, lport, rhost:rport and MTU.
Examples:
VPCS[2]> show ip 2
NAME : VPCS[1]
IP/MASK : 10.0.1.2/24
GATEWAY : 10.0.1.1
DNS : 200.1.95.1
DHCP SERVER : 10.0.1.1
DOMAIN NAME : acme.com
MAC : 00:50:79:66:68:00
LPORT : 20000
RHOST:PORT : 127.0.0.1:30000
MTU: : 1500
VPCS[4]> show ip all
NAME IP/MASK GATEWAY MAC DNS
VPCS1 10.0.1.2/24 10.0.1.1 00:50:79:66:68:00 200.1.95.1
VPCS2 10.0.1.3/24 10.0.1.1 00:50:79:66:68:01 200.1.95.1
VPCS3 200.1.0.3/24 200.1.0.1 00:50:79:66:68:02
VPCS4 200.1.0.4/24 200.1.0.1 00:50:79:66:68:03
VPCS5 0.0.0.0/0 0.0.0.0 00:50:79:66:68:04
VPCS6 0.0.0.0/0 0.0.0.0 00:50:79:66:68:05
VPCS7 0.0.0.0/0 0.0.0.0 00:50:79:66:68:06
VPCS8 0.0.0.0/0 0.0.0.0 00:50:79:66:68:07
VPCS9 0.0.0.0/0 0.0.0.0 00:50:79:66:68:08
VPCS[1]> show ipv6 ?
show ipv6 [|all]
Show IPv6 details for VPC (default this VPC) or all VPCs, including
VPC Name, IP address, mask, gateway, DNS, MAC, lport, rhost:rport and MTU
Examples:
VPCS[4]> show ipv6
NAME : VPCS[4]
LINK-LOCAL SCOPE : fe80::250:79ff:fe66:6803/64
GLOBAL SCOPE : 2001:db8::4/64
ROUTER LINK-LAYER : c2:01:09:98:00:00
MAC : 00:50:79:66:68:03
LPORT : 20003
RHOST:PORT : 127.0.0.1:30003
MTU: : 1500
VPCS[4]> show ipv6 all
NAME IP/MASK ROUTER LINK-LAYER MTU
VPCS1 fe80::250:79ff:fe66:6800/64
2001:db8:0:a:2050:79ff:fe66:6800/64 c2:00:09:98:00:00 1500
VPCS2 fe80::250:79ff:fe66:6801/64
2001:db8:0:a:2050:79ff:fe66:6801/64 c2:00:09:98:00:00 1500
VPCS3 fe80::250:79ff:fe66:6802/64
2001:db8::3/64 c2:01:09:98:00:00 1500
VPCS4 fe80::250:79ff:fe66:6803/64
2001:db8::4/64 c2:01:09:98:00:00 1500
VPCS5 fe80::250:79ff:fe66:6804/64
VPCS6 fe80::250:79ff:fe66:6805/64
VPCS7 fe80::250:79ff:fe66:6806/64
VPCS8 fe80::250:79ff:fe66:6807/64
VPCS9 fe80::250:79ff:fe66:6808/64
* A new set dump command, great for debugging protocols:
set dump [detail|mac|raw|all|off]
Set the packet dump flag for this VPC
detail print protocol
mac print ether address
raw print the first 40 bytes
all all the packets including incoming
must use [detail|mac|raw] as well as 'all'
off clear all the flags
* New options for dhcp, including a decode option to display the contents of the dhcp packets:
ip dhcp [-options]
Attempt to obtain IPv4 address, mask, gateway and DNS via DHCP
options:
-d Show DHCP packet decode
-r Renew DHCP lease
-x Release DHCP lease
* More flexible ip address settings, and new settings for DNS and dhcp:
ip [arguments]
Configure the current VPC's IP settings
arguments:
Set the VPC's ip, default gateway ip and network mask
Default IPv4 mask is /24, IPv6 is /64. In the ether mode,
the ip of the tapx is the maximum host ID of the subnet.
ip 10.1.1.70 /26 10.1.1.65 set the VPC's ip to 10.1.1.70,
the gateway to 10.1.1.65, the netmask to 255.255.255.192,
the tapx ip to 10.1.1.126 in the ether mode.
may be written as /26, 26 or 255.255.255.192
auto Attempt to obtain IPv6 address, mask and gateway using SLAAC
dhcp -[d|r|x] Attempt to obtain IPv4 address, mask, gateway, DNS via DHCP
-d Show DHCP packet decode
-r Renew DHCP lease
-x Release DHCP lease
dns Set DNS server , delete if is '0'
mtu Set IPv4 MTU to , at least 576.
Examples:
VPCS[3]> ip 200.1.0.3 /24 200.1.0.1
Checking for duplicate address...
PC3 : 200.1.0.3 255.255.255.0 gateway 200.1.0.1
VPCS[1]> ip dhcp -d
Opcode: 1 (REQUEST)
Client IP Address: 0.0.0.0
Your IP Address: 0.0.0.0
Server IP Address: 0.0.0.0
Gateway IP Address: 0.0.0.0
Client MAC Address: 00:50:79:66:68:00
Option 53: Message Type = Discover
Option 12: Host Name = VPCS1
Option 61: Client Identifier = Hardware Type=Ethernet MAC Address = 00:50:79:66:68:00
Opcode: 2 (REPLY)
Client IP Address: 0.0.0.0
Your IP Address: 10.0.1.2
Server IP Address: 0.0.0.0
Gateway IP Address: 0.0.0.0
Client MAC Address: 00:50:79:66:68:00
Option 53: Message Type = Offer
Option 54: DHCP Server = 10.0.1.1
Option 51: Lease Time = 63180
Option 58: Renewal Time = 31590
Option 59: Rebinding Time = 55282
Option 1: Subnet Mask = 255.255.255.0
Option 3: Router = 10.0.1.1
Option 6: DNS Server = 200.1.95.1
Option 15: Domain = acme.com
Opcode: 1 (REQUEST)
Client IP Address: 10.0.1.2
Your IP Address: 0.0.0.0
Server IP Address: 0.0.0.0
Gateway IP Address: 0.0.0.0
Client MAC Address: 00:50:79:66:68:00
Option 53: Message Type = Request
Option 54: DHCP Server = 10.0.1.1
Option 50: Requested IP Address = 10.0.1.2
Option 61: Client Identifier = Hardware Type=Ethernet MAC Address = 00:50:79:66:68:00
Option 12: Host Name = VPCS1
Opcode: 2 (REPLY)
Client IP Address: 10.0.1.2
Your IP Address: 10.0.1.2
Server IP Address: 0.0.0.0
Gateway IP Address: 0.0.0.0
Client MAC Address: 00:50:79:66:68:00
Option 53: Message Type = Ack
Option 54: DHCP Server = 10.0.1.1
Option 51: Lease Time = 86400
Option 58: Renewal Time = 43200
Option 59: Rebinding Time = 75600
Option 1: Subnet Mask = 255.255.255.0
Option 3: Router = 10.0.1.1
Option 6: DNS Server = 200.1.95.1
Option 15: Domain = acme.com
IP 10.0.1.2/24 GW 10.0.1.1
* New rlogin command allows you to telnet to router console ports directly from VPCs
Telnet to
at (def 127.0.0.1) relative to HOST PC. To attach to the console of a virtual router running on port 2000 of this
host PC, use rlogin 2000
To telnet to the port 2004 of a remote host 10.1.1.1, use
rlogin 10.1.1.1 2004
* New sleep command, useful in the execution of scripts
sleep [] []
Print and pause execution of script for .
If =0 or missing, pause until a key is pressed.
See load
* New command trace (replaces tracert) allows tracing a path to a host using UDP/TCP or ICMP
trace [-options]
Print the path take to network . can be an ip address or name.
options:
-P
Use IP in trace packets 1 - icmp, 17 - udp (default), 6 - tcp
-m maximum TTL, default 8
Same as -m option, compatible with the old version
