The packages you find here are packages built for OpenWRT.
These are made using ipkg-buildpackage, hence not from within the OpenWRT buildroot.

These packages are provided as-is, use at your own risk. Beware that some of these might 
conflict with packages you have already installed, or packages available in other repositories.

Package        | Version  | Remarks
---------------------------------------------------------------
dropbear       | 0.43     |  
gmp            | 4.1.3    | Required for openswan
iproute2       | 2.6.8    | Full iproute2 package (no arpd)
ipsecgre       | 0.2      | Custom _updown scripts for openswan
kmod-ipgre     | 2.4.20   | Packaged kmodules.tar.gz
kmod-ipip      | 2.4.20   | Packaged kmodules.tar.gz
kmod-ipt4      | 2.4.20   | Packaged kmodules.tar.gz
kmod-ipt6      | 2.4.20   | Packaged kmodules.tar.gz
kmod-ipv6      | 2.4.20   | Packaged kmodules.tar.gz
kmod-nbd       | 2.4.20   | Packaged kmodules.tar.gz
kmod-netlink   | 2.4.20   | Packaged kmodules.tar.gz
kmod-nfs       | 2.4.20   | Packaged kmodules.tar.gz
kmod-sched     | 2.4.20   | Packaged kmodules.tar.gz
kmod-shaper    | 2.4.20   | Packaged kmodules.tar.gz
kmod-wanrouter | 2.4.20   | Packaged kmodules.tar.gz
l2tpd          | 0.69     | 
libgdbm        | 1.8.3    | 
mawk           | 1.3.3    | Required for openswan
miau           | 0.5.3    | IRC bouncer
netcat         | 0.7.1    | 
nsd            | 2.1.2    | Without ipv6 support
nttcp          | 1.47     | 
openswan-module| 2.2.0    | 
openswan       | 2.2.0    | 
zc             | 1.0      |
ssmtp          | 2.50     | Small MTA, needs a smarthost