Frame-Relay Point-to-point with '% Unrecognized command'

I want to make point-to-point subinterface with Frame-Relay encapsulation in main link serial interface but there is a little confuse, here is

R3(config)#int s1/0
R3(config-if)#encapsulation frame-relay 
R3(config-if)#int s1/0.1 poin
R3(config-if)#int s1/0.1 point
R3(config-if)#int s1/0.1 point-to
R3(config-if)#int s1/0.1 ?       
% Unrecognized command

R3(config-if)#do sh run int s1/0
Building configuration...

Current configuration : 134 bytes
!
interface Serial1/0
 no ip address
 encapsulation frame-relay
 shutdown
 serial restart-delay 0
 no dce-terminal-timing-enable
end

R3(config-if)#no shut
R3(config-if)#
*Mar  1 00:02:51.583: %LINK-3-UPDOWN: Interface Serial1/0, changed state to up

R3(config-if)#int s1/0.1 poin
R3(config-if)#int s1/0.1 ?   
% Unrecognized command

R3(config-if)#int s1/0.1 
*Mar  1 00:03:02.587: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0, changed state to up
% Incomplete command.

R3(config)#int s1/0.1 ?
  multipoint      Treat as a multipoint link
  point-to-point  Treat as a point-to-point link

R3(config)#int s1/0.1 poin
R3(config)#int s1/0.1 point-to-point 
R3(config-subif)#ip add 10.10.10.3 255.255.255.0

So before the main link serial interface up and line protocol up too, can't make a subinterface point-to-point or multipoint ;).

---update---

This correction about my post.

Juniper NetScreen 5GT (NetScreen-5 Series)

My company implement small office router for customer equipment / CE plus value add firewall appliance that is Juniper NetScreen 5GT.

First time look at the device, not sure with small dimension can handle routing table & firewall applicance, ok let see

1. 5GT devide 2 segment 'trust' & 'untrust', trust is segment local / LAN, untrust is segment public / internet
2. default these segment Juniper have default config, for untrust with static IP & trust with DHCP IP + NAT enable

I have example step by step config for simple gateway 5GT without NAT & DHCP

1. set interface utrust with public IP from service provider for back to back allocation (172.16.0.0/30)
2. make interface utrust disable NAT & DHCP
3. set interface trust with public IP for host allocation (172.16.0.4/28)
4. set default route 0.0.0.0/0 to get destination to back to back IP in service provider
5. test ping & save configuration

Here the capture :

ns5gt-> set interface untrust ip 172.16.0.2 255.255.255.252
ns5gt-> set interface untrust manage ping
ns5gt-> get interface

A - Active, I - Inactive, U - Up, D - Down, R - Ready 

Interfaces in vsys Root: 
Name           IP Address         Zone        MAC            VLAN State VSD      
trust          192.168.1.1/24     Trust       0017.cbef.48b2    -   U   -  
untrust        172.16.0.2/30  Untrust     0017.cbef.48b1    -   U   -  
serial         0.0.0.0/0          Null        0017.cbef.48b6    -   D   -  
vlan1          0.0.0.0/0          VLAN        0017.cbef.48bf    1   D   -  
null           0.0.0.0/0          Null        N/A               -   U   0  

ns5gt-> set interface trust route
ns5gt-> unset interface trust dhcp server service
ns5gt-> set interface trust ip 172.16.0.5 255.255.255.240
ns5gt-> get route

IPv4 Dest-Routes for  (0 entries)
--------------------------------------------------------------------------------
H: Host C: Connected S: Static A: Auto-Exported
I: Imported R: RIP P: Permanent D: Auto-Discovered
iB: IBGP eB: EBGP O: OSPF E1: OSPF external type 1
E2: OSPF external type 2

IPv4 Dest-Routes for  (4 entries)
--------------------------------------------------------------------------------
   ID          IP-Prefix      Interface         Gateway   P Pref    Mtr     Vsys
--------------------------------------------------------------------------------
*   5    172.16.0.4/28          trust         0.0.0.0   C    0      0     Root
*   6    172.16.0.5/32          trust         0.0.0.0   H    0      0     Root
*   4  172.16.0.2/32        untrust         0.0.0.0   H    0      0     Root
*   3  172.16.0.0/30        untrust         0.0.0.0   C    0      0     Root

ns5gt-> set route 0.0.0.0 0.0.0.0 interface untrust
ns5gt-> get route

IPv4 Dest-Routes for  (0 entries)
--------------------------------------------------------------------------------
H: Host C: Connected S: Static A: Auto-Exported
I: Imported R: RIP P: Permanent D: Auto-Discovered
iB: IBGP eB: EBGP O: OSPF E1: OSPF external type 1
E2: OSPF external type 2

IPv4 Dest-Routes for  (5 entries)
--------------------------------------------------------------------------------
   ID          IP-Prefix      Interface         Gateway   P Pref    Mtr     Vsys
--------------------------------------------------------------------------------
*   7          0.0.0.0/0        untrust         0.0.0.0   S   20      1     Root
*   5    172.16.0.4/28          trust         0.0.0.0   C    0      0     Root
*   6    172.16.0.5/32          trust         0.0.0.0   H    0      0     Root
*   4  172.16.0.2/32        untrust         0.0.0.0   H    0      0     Root
*   3  172.16.0.0/30        untrust         0.0.0.0   C    0      0     Root

or 

ns5gt-> set route 0.0.0.0 0.0.0.0 interface untrust gateway 172.16.0.1
ns5gt-> get route

IPv4 Dest-Routes for  (0 entries)
--------------------------------------------------------------------------------
H: Host C: Connected S: Static A: Auto-Exported
I: Imported R: RIP P: Permanent D: Auto-Discovered
iB: IBGP eB: EBGP O: OSPF E1: OSPF external type 1
E2: OSPF external type 2

IPv4 Dest-Routes for  (5 entries)
--------------------------------------------------------------------------------
   ID          IP-Prefix      Interface         Gateway   P Pref    Mtr     Vsys
--------------------------------------------------------------------------------
*   8          0.0.0.0/0        untrust  172.16.0.1   S   20      1     Root
*   5    172.16.0.4/28          trust         0.0.0.0   C    0      0     Root
*   6    172.16.0.5/32          trust         0.0.0.0   H    0      0     Root
*   4  172.16.0.2/32        untrust         0.0.0.0   H    0      0     Root
*   3  172.16.0.0/30        untrust         0.0.0.0   C    0      0     Root

ns5gt-> get interface
A - Active, I - Inactive, U - Up, D - Down, R - Ready 
Interfaces in vsys Root: 
Name           IP Address         Zone        MAC            VLAN State VSD      
trust          172.16.0.5/28    Trust       0017.cbef.48b2    -   U   -  
untrust        172.16.0.2/30  Untrust     0017.cbef.48b1    -   U   -  
serial         0.0.0.0/0          Null        0017.cbef.48b6    -   D   -  
vlan1          0.0.0.0/0          VLAN        0017.cbef.48bf    1   D   -  
null           0.0.0.0/0          Null        N/A               -   U   0  

ns5gt-> save
Save System Configuration  ... 
Done
ns5gt-> 

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