r0 = socket$inet_tcp(0x2, 0x1, 0x0)
ioctl$sock_inet_SIOCDELRT(r0, 0x890c, &(0x7f0000000240)={0x0, {0x2, 0x0, @private=0xa010102}, {0x2, 0x0, @loopback}, {0x2, 0x0, @multicast2}})