The following example shows R1's BGP table after the import filter is applied. Note that only 12.0.0.0 from 88.88.88.2 is still in the table.

vyatta@R1:~$ show ip bgp
BGP table version is 0, local router ID is 10.0.0.11
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, R Removed
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*>i3.0.0.0/24       99.99.99.2               0    100      0 300 i
*>i3.1.0.0/24       99.99.99.2               0    100      0 300 i
*>i3.2.0.0/24       99.99.99.2               0    100      0 300 i
*> 12.0.0.0         88.88.88.2               0             0 200 i
*>i13.0.0.0/24      99.99.99.2               0    100      0 300 i
*>i99.99.99.0/30    99.99.99.2               0    100      0 300 i
*> 172.16.0.0/24    0.0.0.0                  1         32768 i
* i                 10.0.0.44                1    100      0 i
*>i172.16.128.0/24  99.99.99.2               0    100      0 300 i
*>i192.168.2.0      99.99.99.2               0    100      0 300 i

Total number of prefixes 9
vyatta@R1:~$