R3#sh run int s 1/0
Building configuration...

Current configuration : 251 bytes
!
interface Serial1/0
 ip address 180.40.7.66 255.255.255.224
 encapsulation frame-relay
 ip ospf network broadcast
 frame-relay map ip 180.40.7.65 307 broadcast tcp header-compression connections 20
 frame-relay map ip 180.40.7.67 302 broadcast
end




R7(config-subif)#do sh run int s 1/0.1
Building configuration...

Current configuration : 213 bytes
!
interface Serial1/0.1 point-to-point
 ip address 180.40.7.65 255.255.255.224
 ip ospf network broadcast
 ip ospf priority 0
 frame-relay interface-dlci 703
 frame-relay ip tcp header-compression passive
end


R3#sh ip tcp header-compression
TCP/IP header compression statistics:
 DLCI 307        Link/Destination info: ip 180.40.7.65
  Interface Serial1/0:
    Rcvd:    17 total, 16 compressed, 0 errors, 0 status msgs
             0 dropped, 0 buffer copies, 0 buffer failures
    Sent:    32 total, 26 compressed, 0 status msgs
             920 bytes saved, 492 bytes sent
             2.86 efficiency improvement factor
    Connect: 20 rx slots, 20 tx slots,
             2 long searches, 2 misses 0 collisions, 0 negative cache hits
             93% hit ratio, five minute miss rate 0 misses/sec, 0 max