diff --git a/target/linux/ixp4xx-2.6/config/default b/target/linux/ixp4xx-2.6/config/default
index 095dbb8cb7..3b949cef77 100644
--- a/target/linux/ixp4xx-2.6/config/default
+++ b/target/linux/ixp4xx-2.6/config/default
@@ -73,7 +73,7 @@ CONFIG_CPU_CP15_MMU=y
 CONFIG_CPU_TLB_V4WBI=y
 CONFIG_CPU_XSCALE=y
 CONFIG_CRC16=y
-# CONFIG_CRC_CCITT is not set
+CONFIG_CRC_CCITT=m
 # CONFIG_CRYPTO_ANUBIS is not set
 CONFIG_CRYPTO_BLKCIPHER=m
 # CONFIG_CRYPTO_BLOWFISH is not set
@@ -351,6 +351,14 @@ CONFIG_PATA_IXP4XX_CF=m
 # CONFIG_PCIPCWATCHDOG is not set
 # CONFIG_PDC_ADMA is not set
 # CONFIG_PM is not set
+CONFIG_PPP=m
+CONFIG_PPP_MULTILINK=y
+CONFIG_PPP_FILTER=y
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_MPPE=m
 # CONFIG_PRISM54 is not set
 # CONFIG_REISERFS_FS is not set
 # CONFIG_ROMFS_FS is not set
@@ -444,6 +452,7 @@ CONFIG_SENSORS_W83781D=y
 # CONFIG_SENSORS_W83L785TS is not set
 # CONFIG_SERIAL_8250_EXTENDED is not set
 # CONFIG_SHMEM is not set
+CONFIG_SLHC=m
 # CONFIG_SMB_FS is not set
 # CONFIG_SMC91X is not set
 # CONFIG_SOFT_WATCHDOG is not set