ipsec-2.4.20-pre11-ALL.patch.gz (whole IPsec patch against 2.4.20-pre10)
ipsec-2.5.43-ALL-03.patch.gz (whole IPsec patch against 2.5.43)
patch-int-2.4.19.2.bz2 (official CryptoAPI patch)
patch-int-2.5.41.bz2 (quick porting patch-int-2.4.19 by USAGI, to test/complie IPsec against 2.5.41)
ipv6tunnel-2.5.41-HUT.patch.gz (pull from the latest HUT mipl patch and changed to fit 2.5.41 by USAGI)