как ни странно заработало само
vot route:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
my_ip 172.25.32.1 255.255.255.255 UGH 0 0 0 eth0
my_ip * 255.255.255.255 UH 0 0 0 ppp0
172.25.32.0 * 255.255.224.0 U 0 0 0 eth0
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
default my_ip 0.0.0.0 UG 0 0 0 ppp0